US20160155962A1 - Organometallic compound and organic light-emitting device including the same - Google Patents

Organometallic compound and organic light-emitting device including the same Download PDF

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US20160155962A1
US20160155962A1 US14/951,764 US201514951764A US2016155962A1 US 20160155962 A1 US20160155962 A1 US 20160155962A1 US 201514951764 A US201514951764 A US 201514951764A US 2016155962 A1 US2016155962 A1 US 2016155962A1
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Kyuyoung HWANG
Ohyun Kwon
Yoonhyun Kwak
Hyun Koo
Kumhee LEE
Hyeonho CHOI
Whail CHOI
Seokhwan HONG
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Samsung Electronics Co Ltd
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Assigned to SAMSUNG ELECTRONICS CO., LTD. reassignment SAMSUNG ELECTRONICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHOI, HYEONHO, CHOI, WHAIL, HONG, SEOKHWAN, HWANG, KYUYOUNG, KOO, HYUN, KWAK, YOONHUYN, KWON, OHYUN, LEE, KUMHEE
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    • H01L51/5004Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]; characterised by the interrelation between parameters of constituting active layers, e.g. HOMO-LUMO relation
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    • H01L51/5012Electroluminescent [EL] layer
    • H01L51/5016Triplet emission

Abstract

An organometallic compound represented by Formula 1:

M(L1)n1(L2)n2  Formula 1
wherein in Formula 1, M, L1, L2, n1, and n2 are the same as described in the specification.

Description

    CROSS-REFERENCE TO RELATED APPLICATION
  • This application claims priority to and the benefit of Korean Patent Applications Nos. 10-2014-0169183, filed on Nov. 28, 2014, and 10-2015-0129776, filed on Sep. 14, 2015, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.
  • BACKGROUND
  • 1. Field
  • One or more embodiments relate to an organometallic compound and an organic light-emitting device including the same.
  • 2. Description of the Related Art
  • Organic light emitting devices (OLEDs) are self-emission devices that have wide viewing angles, high contrast ratios, and short response times. In addition, OLEDs exhibit excellent brightness, driving voltage, and response speed characteristics, and produce full-color images.
  • In an example, an organic light-emitting device includes an anode, a cathode, and an organic layer that is disposed between the anode and the cathode and includes an emission layer. A hole transport region may be disposed between the anode and the emission layer, and an electron transport region may be disposed between the emission layer and the cathode. Holes provided from the anode may move toward the emission layer through the hole transport region, and electrons provided from the cathode may move toward the emission layer through the electron transport region. The holes and the electrons are recombined in the emission layer to produce excitons. These excitons change from an excited state to a ground state, thereby generating light.
  • Various types of organic light emitting devices are known. However, there still remains a need in OLEDs having low driving voltage, high efficiency, high brightness, and long lifespan.
  • SUMMARY
  • One or more embodiments relate to a novel organometallic compound and an organic light-emitting device including the same.
  • Additional aspects will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the presented embodiments.
  • An aspect provides an organometallic compound represented by Formula 1:
  • Figure US20160155962A1-20160602-C00001
  • wherein M in Formula 1 is selected from Ir, Pt, Os, Ti, Zr, Hf, Eu, Tb, Tm, and Rh,
  • in Formula 1, L1 is a ligand represented by Formula 2A, n1 is 1, 2, or 3, and when n1 is 2 or more, 2 or more L1 may be identical or different,
  • in Formula 1, L2 is selected from a monovalent organic ligand, a divalent organic ligand, a trivalent organic ligand, and a tetravalent organic ligand, n2 is 0, 1, 2, 3, or 4, when n2 is 2 or more, 2 or more L2 may be identical or different,
  • L1 and L2 in Formula 1 may be different from each other,
  • R1 to R3 in Formula 2A may be each independently selected from a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, and —Si(Q51)(Q52)(Q53),
  • X1 in Formula 2A may be selected from O, S, S(═O)2, N(R21), and Si(R22)(R23),
  • in Formula 2A, Y1 may be N, C(R41) or a carbon atom connected to a pyridine ring, Y2 may be N, C(R42) or a carbon atom connected to a pyridine ring, Y3 may be N, C(R43) or a carbon atom connected to a pyridine ring, Y4 may be N, C(R44) or a carbon atom connected to a pyridine ring, Y5 may be N or C(R45), Y6 may be N or C(R46), Y7 may be N or C(R47), Y8 may be N or C(R48), and one of Y1 to Y4 may be a carbon atom connected,
  • R11, R21 to R23 and R41 to R48 in Formula 2A may be each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, —SF5, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9), and 2 or more R11 may optionally be linked to each other to form a saturated or unsaturated C4-C60 ring, and two or more of R41 to R44 may be optionally linked to each other to form a saturated or unsaturated C4-C60 ring, and two or more of R45 to R48 may be optionally linked to each other to form a saturated or unsaturated C4-C60 ring,
  • in Formula 2A, b1 is an integer selected from 0 to 3, and b4 is an integer selected from 1 to 4,
  • * and *′ in Formula 2A are binding sites to M in Formula 1,
  • at least one of substituents of the substituted C1-C60 alkyl group, substituted C2-C60 alkenyl group, substituted C2-C60 alkynyl group, substituted C1-C60 alkoxy group, substituted C3-C10 cycloalkyl group, substituted C1-C10 heterocycloalkyl group, substituted C3-C10 cycloalkenyl group, substituted C1-C10 heterocycloalkenyl group, substituted C6-C60 aryl group, substituted C6-C60 aryloxy group, substituted C6-C60 arylthio group, substituted C1-C60 heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group, and substituted monovalent non-aromatic condensed heteropolycyclic group is selected from
  • a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group;
  • a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q11)(Q12), —Si(Q13)(Q14)(Q15), —B(Q16)(Q17), and —P(═O)(Q18)(Q19);
  • a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group;
  • a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q21)(Q22), —Si(Q23)(Q24)(Q25), —B(Q26)(Q27), and —P(═O)(Q28)(Q29); and
  • —N(Q31)(Q32), —Si(Q33)(Q34)(Q35), —B(Q36)(Q37), and —P(═O)(Q38)(Q39);
  • wherein Q1 to Q9, Q11 to Q19, Q21 to Q29, Q31 to Q39 and Q51 to Q53 may be each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.
  • Another aspect provides an organic light-emitting device including:
  • a first electrode;
  • a second electrode; and
  • an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes an emission layer and at least one organometallic compound represented by Formula 1.
  • The emission layer may include the organometallic compound.
  • The organometallic compound included in the emission layer may act as a dopant, and the emission layer may further include a host.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • These and/or other aspects will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with
  • FIG. 1 which is a schematic view of an organic light-emitting device according to an embodiment.
  • DETAILED DESCRIPTION
  • Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. In this regard, the present embodiments may have different forms and should not be construed as being limited to the descriptions set forth herein. Accordingly, the embodiments are merely described below, by referring to the FIGURES, to explain aspects of the present inventive concept. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. Expressions such as “at least one of,” when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list.
  • It will be understood that when an element is referred to as being “on” another element, it can be directly in contact with the other element or intervening elements may be present therebetween. In contrast, when an element is referred to as being “directly on” another element, there are no intervening elements present.
  • It will be understood that, although the terms first, second, third etc. may be used herein to describe various elements, components, regions, layers, and/or sections, these elements, components, regions, layers, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or section from another element, component, region, layer, or section. Thus, a first element, component, region, layer, or section discussed below could be termed a second element, component, region, layer, or section without departing from the teachings of the present embodiments.
  • The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.
  • It will be further understood that the terms “comprises” and/or “comprising,” or “includes” and/or “including” when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components, and/or groups thereof.
  • Spatially relative terms, such as “beneath,” “below,” “lower,” “above,” “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the FIGURES. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the FIGURES. For example, if the device in the FIGURES is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the exemplary term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
  • “About” or “approximately” as used herein is inclusive of the stated value and means within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art, considering the measurement in question and the error associated with measurement of the particular quantity (i.e., the limitations of the measurement system). For example, “about” can mean within one or more standard deviations, or within ±30%, 20%, 10%, 5% of the stated value.
  • Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art an d the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
  • Exemplary embodiments are described herein with reference to cross section illustrations that are schematic illustrations of idealized embodiments. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, a region illustrated or described as flat may, typically, have rough and/or nonlinear features. Moreover, sharp angles that are illustrated may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the present claims.
  • An organometallic compound according to an embodiment is represented by Formula 1 below:

  • M(L1)n1(L2)n2  Formula 1
  • M in Formula 1 may be selected from iridium (Ir), platinum (Pt), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), thulium (Tm), and rhodium (Rh).
  • For example, M in Formula 1 may be selected from iridium (Ir), platinum (Pt), osmium (Os), and rhodium (Rh).
  • In some embodiments, M in Formula 1 may be selected from iridium (Ir) and platinum (Pt), but is not limited thereto.
  • In Formula 1, L1 is a ligand represented by Formula 2A, n1 is 1, 2, or 3, and when n1 is 2 or more, 2 or more L1 may be identical or different.
  • Figure US20160155962A1-20160602-C00002
  • wherein in Formula 1, L2 is selected from a monovalent organic ligand, a divalent organic ligand, a trivalent organic ligand, and a tetravalent organic ligand, n2 is 0, 1, 2, 3, or 4, when n2 is 2 or more, 2 or more L2 may be identical or different.
  • L1 and L2 in Formula 1 may be different from each other.
  • For example, n1 in Formula 1 may be 1.
  • In some embodiments, the organometallic compound represented by Formula 1 may not include an ionic group. For example, the organometallic compound may not be a salt consisting of an ionic pair.
  • In some embodiments, in Formula 1, M is Ir and the sum of n1 and n2 is 3; or M is Pt and the sum of n1 and n2 is 2, and the organometallic compound represented by Formula 1 may not include an ionic group.
  • R1 to R3 in Formula 2A may be each independently selected from a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, and —Si(Q51)(Q52)(Q53).
  • For example, R1 to R3 in Formula 2A may be each independently selected from a C1-C20 alkyl group, a C1-C20 alkoxy group, and —Si(Q51)(Q52)(Q53);
  • a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
  • a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group; and
  • a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —OF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group; and
  • Q51 to Q53 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group, but embodiments are not limited thereto.
  • In other examples, R1 to R3 in Formula 2A may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, a naphthyl group, and —Si(Q51)(Q52)(Q53); and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group;
  • Q51 to Q53 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group.
  • In some embodiments, Q51 to Q53 may be each independently a methyl group or an ethyl group.
  • In some embodiments, in Formula 2A,
  • R1 to R3 may all be identical;
  • R1 and R3 may be identical and R2 and R1 may be different; or
  • R1 to R3 may all be different from each other.
  • X1 in Formula 2A may be selected from O, S, S(═O)2, N(R21), and Si(R22)(R23).
  • For example, X1 in Formula 2A may be selected from O, S, and N(R21).
  • According to an embodiment, X1 in Formula 2A may be 0, but is not limited thereto.
  • R11, R21 to R23 and R41 to R48 in Formula 2A may be each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, —SF5, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9).
  • For example, R11, R21 to R23 and R41 to R48 in Formula 2A may be each independently selected from
  • a hydrogen, a deuterium, —F, —Cl, —Br, —I, —SF5, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, and a C1-C20 alkoxy group;
  • a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group,
  • a C1-C10 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C14 aryl group, a C1-C14 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group;
  • a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C14 aryl group, a C1-C14 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group;
  • a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C14 aryl group, a C1-C14 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C14 aryl group, a C1-C14 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group; and
  • —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9);
  • Q1 to Q9 may be each independently selected from a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C14 aryl group, a substituted or unsubstituted C1-C14 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.
  • In some embodiments, R11, R21 to R23 and R41 to R48 in Formula 2A may be each independently selected from
  • a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, —SF5, a C1-C20 alkyl group, and a C1-C20 alkoxy group;
  • a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
  • a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group;
  • a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group; and
  • —B(Q6)(Q7) and —P(═O)(Q8)(Q9),
  • Q6 to Q9 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group, but embodiments are not limited thereto.
  • In some embodiments, R11, R21 to R23 and R41 to R48 in Formula 2A may be each independently selected from
  • a hydrogen, a deuterium, —F, a cyano group, a nitro group, —SF5, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl, norbornanyl group, a norbornenyl, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
  • a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a cyano group, a nitro group, a C1-C10 alkyl group, a C1-C10 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group; and
  • —B(Q6)(Q7) and —P(═O)(Q8)(Q9),
  • Q6 to Q9 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group.
  • In some embodiments, R11, R21 to R23 and R41 to R48 in Formula 2A may be each independently selected from a hydrogen, a deuterium, —F, a cyano group, a nitro group, —SF5, —CH3, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, groups represented by Formulae 9-1 to 9-17, and groups represented by Formulae 10-1 to 10-30, but they are not limited thereto:
  • Figure US20160155962A1-20160602-C00003
    Figure US20160155962A1-20160602-C00004
    Figure US20160155962A1-20160602-C00005
    Figure US20160155962A1-20160602-C00006
    Figure US20160155962A1-20160602-C00007
  • In Formulae 9-1 to 9-17 and to 10-1 to 10-30, * is a binding site to a neighboring atom.
  • In Formula 2A, b1 is an integer selected from 0 to 3, and b4 is an integer selected from 1 to 4.
  • In some embodiments, R21 to R23 in X1 of Formula 2A are each independently selected from
  • a C1-C20 alkyl group, a C1-C20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyridinyl group, a pyrimidinyl group, and a triazinyl group;
  • a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, and a phosphoric acid group or a salt thereof;
  • a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyridinyl group, a pyrimidinyl group, and a triazinyl group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a phenyl group, and a naphthyl group.
  • In Formula 2A, b1 indicates the number of R11, when b1 is 2 or more, 2 or more R11 are identical or different, and b4 indicates the number of —Si(R1)(R2)(R3), when b4 is 2 or more, 2 or more —Si(R1)(R2)(R3) are identical or different.
  • In some embodiments, in Formula 2A, b1 may be 0, 1 or 2, and b4 may be 1 or 2, but they are not limited thereto.
  • In some embodiments, in Formula 2A, b1 may be 0 or 1, and b4 may be 1, but they are not limited thereto.
  • Regarding Formula 2A, two or more R11s may be optionally linked to each other to form a saturated or unsaturated C4-C60 ring (for example, a cyclopentane, a cyclohexane, an adamantane, a norbornane, a benzene, a pyridine, a pyrimidine, a naphthalene, a pyrene, or a chrysene), two or more of R41 to R44 may be optionally linked to each other to form a saturated or unsaturated C4-C60 ring (for example, a cyclopentane, a cyclohexane, an adamantane, a norbornane, a benzene, a pyridine, a pyrimidine, a naphthalene, a pyrene, or a chrysene), and two or more of R45 to R48 may be optionally linked to each other to form a saturated or unsaturated C4-C60 ring (for example, a cyclopentane, a cyclohexane, an adamantane, a norbornane, a benzene, a pyridine, a pyrimidine, a naphthalene, a pyrene, or a chrysene).
  • For example, two R11s in Formula 2A may bind to each other to form a substituted or unsubstituted a cyclohexane or a substituted or unsubstituted a benzene, but embodiments are not limited thereto.
  • In some embodiments, none of Y1 to Y8 in Formula 2A may be N.
  • In some embodiments, Y1 or Y3 in Formula 2A may be N.
  • In some embodiments, Y5 or Y6 in Formula 2A may be N.
  • In some embodiments, one or two of Y1, Y3, Y5, and Y6 in Formula 2A may be N
  • In some embodiments, L1 in Formula 1 may be selected from ligands represented by Formula 2A-1 to 2A-16 below:
  • Figure US20160155962A1-20160602-C00008
    Figure US20160155962A1-20160602-C00009
    Figure US20160155962A1-20160602-C00010
    Figure US20160155962A1-20160602-C00011
  • Regarding Formulae 2A-1 to 2A-16, descriptions of R1 to R3, X1, Y1 to Y8, R11, b1 and b4 are the same as described above, descriptions of R15 are the same as described in connection with R11, b5 is an integer selected from 0 to 8, and * and *′ are binding sites to M in Formula 1.
  • In some embodiments,
  • in Formulae 2A-1 to 2A-16, Y1 may be C(R41), Y2 may be C(R42), Y3 may be C(R43), Y4 may be C(R44), Y5 may be C(R45), Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14, and 2A-16, Y1 may be N, Y4 may be C(R44), Y5 may be C(R45), Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14, and 2A-16, Y1 may be C(R41), Y4 may be C(R44), Y5 may be N, Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14, and 2A-16, Y1 may be C(R41), Y4 may be C(R44), Y5 may be C(R45), Y6 may be N, Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14, and 2A-16, Y1 may be N, Y4 may be C(R44), Y5 may be N, Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14, and 2A-16, Y1 may be N, Y4 may be C(R44), Y5 may be C(R45), Y6 may be N, Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-3, 2A-7, 2A-11, and 2A-15, Y3 may be N, Y4 may be C(R44), Y5 may be C(R45), Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-3, 2A-7, 2A-11, and 2A-15, Y3 may be C(R43), Y4 may be C(R44), Y5 may be N, Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-3, 2A-7, 2A-11, and 2A-15, Y3 may be C(R43), Y4 may be C(R44), Y5 may be C(R45), Y6 may be N, Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-3, 2A-7, 2A-11, and 2A-15, Y3 may be N, Y4 may be C(R44), Y5 may be N, Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A-3, 2A-7, 2A-11, and 2A-15, Y3 may be N, Y4 may be C(R44), Y5 may be C(R45), Y6 may be N, Y7 may be C(R47), and Y8 may be C(R48), but they are not limited thereto.
  • In this regard, a maximum luminance wavelength decreases in this following order: i) an organometallic compound using the ligand represented by Formula 2A-4, 2A-8, 2A-12 or 2A-16 ii) an organometallic compound using the ligand represented by Formula 2A-2, 2A-6, 2A-10 or 2A-14 iii) an organometallic compound using the ligand represented by Formula 2A-3, 2A-7, 2A-11 or 2A-15 and iv) an organometallic compound using the ligand represented by Formula 2A-1, 2A-5, 2A-9 or 2A-13. That is, a maximum luminance wavelength of the organometallic compound using the ligand represented by Formula 2A-1, 2A-5, 2A-9 or 2A-13 among Formulae 2A-1 to 2A-16 is the smallest.
  • In some embodiments, L1 in Formula 1 may be selected from ligands represented by Formulae 2AA-1, 2AA-2, 2AA-3, 2AA-4 and 2AB below. When L1 in Formula 1 is selected from ligands represented by Formulae 2AA-1 and 2AB, an organic light-emitting device using the organometallic compound represented by Formula 1 may have high efficiency and a long life span.
  • Figure US20160155962A1-20160602-C00012
  • Regarding Formulae 2AA-1, 2AA-2, 2AA-3, 2AA-4, and 2AB, R1 to R3, X1, Y1 to Y8, R11, and b1 are already described above, R15 may be understood by referring to the description of R11, b5 is an integer selected from 0 to 8, and each of * and *′ indicates a binding site to M in Formula 1.
  • For example, in Formulae 2A-1 to 2A-16, 2AA-1, 2AA-2, 2AA-3, 2AA-4, and 2AB,
  • R1 to R3 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, a naphthyl group, and —Si(Q51)(Q52)(Q53); and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group;
  • Q51 to Q53 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group,
  • X1 may be selected from O, S, S(═O)2, N(R21), and Si(R22)(R23),
  • Y1 to Y8 are already described above,
  • R11, R15, R21 to R23 and R41 to R48 may be each independently selected from
  • a hydrogen, a deuterium, —F, a cyano group, a nitro group, —SF5, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl, norbornanyl group, a norbornenyl, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
  • a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a cyano group, a nitro group, a C1-C10 alkyl group, a C1-C10 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group; and
  • —B(Q6)(Q7) and —P(═O)(Q8)(Q9),
  • Q6 to Q9 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, and a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium and a C1-C10 alkyl group,
  • b1 may be an integer selected from 0 to 3,
  • b4 may be 1 or 2,
  • b5 may be an integer selected from 0 to 8, but they are not limited thereto.
  • In some embodiments, L1 in Formula 1 may be selected from ligands represented by Formulae 2A(1) to 2A(40) below:
  • Figure US20160155962A1-20160602-C00013
    Figure US20160155962A1-20160602-C00014
    Figure US20160155962A1-20160602-C00015
    Figure US20160155962A1-20160602-C00016
    Figure US20160155962A1-20160602-C00017
    Figure US20160155962A1-20160602-C00018
    Figure US20160155962A1-20160602-C00019
    Figure US20160155962A1-20160602-C00020
    Figure US20160155962A1-20160602-C00021
    Figure US20160155962A1-20160602-C00022
  • Regarding Formulae 2A(1) to 2A(40), R1 to R3, X1, Y1 to Y8, and R11 are already described above, R11a and R11b may be understood by referring to the description of R11, and each of * and *′ indicates a binding site to M in Formula 1, provided that R11, R11a, and R11b are not hydrogen.
  • In some embodiments,
  • in Formulae 2A(1) to 2A(40), Y1 may be C(R41), Y2 may be C(R42), Y3 may be C(R43), Y4 may be C(R44), Y5 may be C(R45), Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A(1) to 2(4), 2A(7) to 2A(12), 2A(15) to 2A(20), 2A(23) to 2A(28), and 2A(31) to 2A(36), Y1 may be N, Y4 may be C(R44), Y5 may be C(R45), Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A(1) to 2(4), 2A(7) to 2A(12), 2A(15) to 2A(20), 2A(23) to 2A(28), and 2A(31) to 2A(36), Y1 may be C(R41), Y4 may be C(R44), Y5 may be N, Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A(1) to 2(4), 2A(7) to 2A(12), 2A(15) to 2A(20), 2A(23) to 2A(28), and 2A(31) to 2A(36), Y1 may be C(R41), Y4 may be C(R44), Y5 may be C(R45), Y6 may be N, Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A(1) to 2(4), 2A(7) to 2A(12), 2A(15) to 2A(20), 2A(23) to 2A(28), and 2A(31) to 2A(36), Y1 may be N, Y4 may be C(R44), Y5 may be N, Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A(1) to 2(4), 2A(7) to 2A(12), 2A(15) to 2A(20), 2A(23) to 2A(28), and 2A(31) to 2A(36), Y1 may be N, Y4 may be C(R44), Y5 may be C(R45), Y6 may be N, Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A(5), 2A(6), 2A(13), 2A(14), 2A(21), 2A(22), 2A(29), 2A(30), 2A(37), and 2A(38), Y3 may be N, Y4 may be C(R44), Y5 may be C(R45), Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formula 2A(5), 2A(6), 2A(13), 2A(14), 2A(21), 2A(22), 2A(29), 2A(30), 2A(37), and 2A(38), Y3 may be C(R43), Y4 may be C(R44), Y5 may be N, Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A(5), 2A(6), 2A(13), 2A(14), 2A(21), 2A(22), 2A(29), 2A(30), 2A(37), 2A(38), Y3 may be C(R43), Y4 may be C(R44), Y5 may be C(R45), Y6 may be N, Y7 may be C(R47), and Y8 may be C(R48);
  • in Formulae 2A(5), 2A(6), 2A(13), 2A(14), 2A(21), 2A(22), 2A(29), 2A(30), 2A(37), and 2A(38), Y3 may be N, Y4 may be C(R44), Y5 may be N, Y6 may be C(R46), Y7 may be C(R47), and Y8 may be C(R48); or
  • in Formulae 2A(5), 2A(6), 2A(13), 2A(14), 2A(21), 2A(22), 2A(29), 2A(30), 2A(37), and 2A(38), Y3 may be N, Y4 may be C(R44), Y5 may be C(R45), Y6 may be N, Y7 may be C(R47), and Y8 may be C(R48), but they are not limited thereto.
  • For example, in Formulae 2A(1) to 2A(40),
  • R1 to R3 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, a naphthyl group, and —Si(Q51)(Q52)(Q53); and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group;
  • Q51 to Q53 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group,
  • X1 may be selected from O, S, S(═O)2, N(R21), and Si(R22)(R23),
  • Y1 to Y8 are already described above,
  • R11, R11a, R11b, R21 to R23 and R41 to R48 are each independently selected from
  • a hydrogen, a deuterium, —F, a cyano group, a nitro group, —SF5, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl, norbornanyl group, a norbornenyl, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
  • a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a cyano group, a nitro group, a C1-C10 alkyl group, a C1-C10 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group; and
  • —B(Q6)(Q7), and —P(═O)(Q8)(Q9) (provided that, R11, R11a, and R11b in Formulae 2A(1) to 2A(40) is not a hydrogen), Q6 to Q9 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium and a C1-C10 alkyl group, but embodiments are not limited thereto.
  • In some embodiments, regarding Formulae 2A(1) to 2A(40),
  • R1 to R3 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, a naphthyl group, and —Si(Q51)(Q52)(Q53); and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group;
  • Q51 to Q53 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group,
  • X1 may be selected from O, S, S(═O)2, N(R21), and Si(R22)(R23),
  • Y1 to Y8 are already described above,
  • R11, R11a, R1b and R41 to R48 may be selected from a deuterium, —F, a cyano group, a nitro group, —SF5, —CH3, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, groups represented by Formulae 9-1 to 9-17, and groups represented by Formulae 10-1 to 10-30,
  • R21 to R23 are each independently selected from
  • a C1-C20 alkyl group, a C1-C20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyridinyl group, a pyrimidinyl group, and a triazinyl group;
  • a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, and a phosphoric acid group or a salt thereof; and
  • a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyridinyl group, a pyrimidinyl group, and a triazinyl group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a phenyl group, and a naphthyl group,
  • but are not limited thereto.
  • L2 in Formula 1 may be selected from ligands represented by Formulae 3A to 3G:
  • Figure US20160155962A1-20160602-C00023
  • wherein in Formulae 3A to 3G,
  • Y11 to Y16 are each independently carbon (C) or nitrogen (N), Y11 and Y12 are linked to each other by a single bond or a double bond, Y13 and Y14 are linked to each other by a single bond or a double bond, and Y15 and Y16 are linked to each other by a single bond or a double bond,
  • CY3 to CY5 are each independently selected from a C5-C60 carbocyclic group and a C2-C60 heterocyclic group (“a monocyclic group” or “polycyclic group”, respectively).
  • a1 to a3 are each independently an integer selected from 1 to 5 and CY3 and CY4 may be optionally additionally linked to each other via an organic linking group,
  • A1 is P or As;
  • X11a, X11b, X12a, X12b, X13a, and X13b may be each independently selected from N, O, N(R34), P(R35)(R36), and As(R37)(R38) (provided that none of X12a, X12b, X13a, and X13b are N or O);
  • R33″ and R34″ are each independently selected from a single bond, a double bond, a substituted or unsubstituted C1-C5 alkylene group, a substituted or unsubstituted C2-C5 alkenylene group, and a substituted or unsubstituted C6-C10 arylene group;
  • Z1 to Z3, R31, R32a, R32b, R32c, R33a, R33b, R34 to R38, R35a, R35b, R35c, and R35d are each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group,
  • —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9),
  • * and *′ each indicate binding sites to M in Formula 1;
  • at least one of substituents of the substituted C1-C5 alkylene group, substituted C2-C5 alkenylene group, substituted C6-C10 arylene group, substituted C1-C60 alkyl group, substituted C2-C60 alkenyl group, substituted C2-C60 alkynyl group, substituted C1-C60 alkoxy group, substituted C3-C10 cycloalkyl group, substituted C1-C10 heterocycloalkyl group, substituted C3-C10 cycloalkenyl group, substituted C1-C10 heterocycloalkenyl group, substituted C6-C60 aryl group, substituted C6-C60 aryloxy group, substituted C6-C60 arylthio group, substituted C1-C60 heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group and substituted monovalent non-aromatic condensed heteropolycyclic group is selected from
  • a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group;
  • a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q11)(Q12), —Si(Q13)(Q14)(Q15), —B(Q16)(Q17), and —P(═O)(Q18)(Q19);
  • a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group;
  • a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q21)(Q22), —Si(Q23)(Q24)(Q25), —B(Q26)(Q27), and —P(═O)(Q28)(Q29); and
  • —N(Q31)(Q32), —Si(Q33)(Q34)(Q35), —B(Q36)(Q37), and —P(═O)(Q38)(Q39);
  • wherein Q1 to Q9, Q11 to Q19, Q21 to Q29, and Q31 to Q39 may be each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.
  • According to an embodiment, CY3 to CY5 in Formulae 3A and 3B may be each independently selected from a benzene, a naphthalene, a fluorene, a spiro-fluorene, an indene, a pyrrole, a thiophene, a furan, an imidazole, a pyrazole, a thiazole, an isothiazole, an oxazole, an isoxazole, a pyridine, a pyrazine, a pyrimidine, a pyridazine, a quinoline, an isoquinoline, a benzoquinoline, a quinoxaline, a quinazoline, a carbazole, a benzoimidazole, a benzofuran, a benzothiophene, an isobenzothiophene, a benzoxazole, an isobenzoxazole, a triazole, a tetrazole, an oxadiazole, a triazine, a dibenzofuran, a dibenzothiophene, and 5,6,7,8-tetrahydroisoquinoline, but they are not limited thereto.
  • In some embodiments, L2 in Formula 1 may be selected from ligands represented by Formulae 3-1 to 3-111, but are not limited thereto:
  • Figure US20160155962A1-20160602-C00024
    Figure US20160155962A1-20160602-C00025
    Figure US20160155962A1-20160602-C00026
    Figure US20160155962A1-20160602-C00027
    Figure US20160155962A1-20160602-C00028
    Figure US20160155962A1-20160602-C00029
    Figure US20160155962A1-20160602-C00030
    Figure US20160155962A1-20160602-C00031
    Figure US20160155962A1-20160602-C00032
    Figure US20160155962A1-20160602-C00033
    Figure US20160155962A1-20160602-C00034
    Figure US20160155962A1-20160602-C00035
    Figure US20160155962A1-20160602-C00036
    Figure US20160155962A1-20160602-C00037
    Figure US20160155962A1-20160602-C00038
    Figure US20160155962A1-20160602-C00039
    Figure US20160155962A1-20160602-C00040
    Figure US20160155962A1-20160602-C00041
    Figure US20160155962A1-20160602-C00042
    Figure US20160155962A1-20160602-C00043
    Figure US20160155962A1-20160602-C00044
    Figure US20160155962A1-20160602-C00045
    Figure US20160155962A1-20160602-C00046
  • wherein in Formulae 3-1 to 3-111,
  • Z1, Z2, Z1a, Z1b, Z2a, Z2b, Z2c, R34a, R34b, and R34c may be each independently selected from
  • a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, —SF5, a C1-C20 alkyl group, and a C1-C20 alkoxy group;
  • a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
  • a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group;
  • a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —OF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group; and
  • —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9);
  • Q1 to Q9 and Q44 to Q49 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, and a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium and a C1-C10 alkyl group,
  • aa2 and ab2 are each independently 1 or 2,
  • aa3 and ab3 are each independently selected from 1, 2, and 3,
  • aa4 and ab4 may be each independently selected from, 1, 2, 3, and 4, and
  • * and *′ each indicate binding sites to M in Formula 1.
  • Z1, Z2, Z1a, Z1b, Z2a, Z2b, Z2c, R34a, R34b, and R34c in Formulae 3-1 to 3-111 may be each independently selected from
  • a hydrogen, a deuterium, —F, a cyano group, a nitro group, —SF5, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl, norbornanyl group, a norbornenyl, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
  • a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a cyano group, a nitro group, a C1-C10 alkyl group, a C1-C10 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
  • —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9);
  • Q1 to Q9 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium and a C1-C10 alkyl group, but embodiments are not limited thereto.
  • In some embodiments, L2 in Formula 1 may be selected from ligands represented by Formulae 3-1(1) to 3-1(59) below and Formula 3-111 above:
  • Figure US20160155962A1-20160602-C00047
    Figure US20160155962A1-20160602-C00048
    Figure US20160155962A1-20160602-C00049
    Figure US20160155962A1-20160602-C00050
    Figure US20160155962A1-20160602-C00051
    Figure US20160155962A1-20160602-C00052
    Figure US20160155962A1-20160602-C00053
    Figure US20160155962A1-20160602-C00054
    Figure US20160155962A1-20160602-C00055
    Figure US20160155962A1-20160602-C00056
    Figure US20160155962A1-20160602-C00057
    Figure US20160155962A1-20160602-C00058
  • For example, in Formulae 3-1(1)to 3-1(59) and Formula 3-111:
  • Z1, Z2, Z1a, Z1b, Z1c, Z1d, Z2a, Z2b, Z2c, Z2d, R34a, R34b, and R34c are each independently selected from a deuterium, —F, a cyano group, a nitro group, —SF5, —CH3, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, —Si(Q3)(Q4)(Q5), groups represented by Formulae 9-1 to 9-17, and groups represented by Formulae 10-1 to 10-30,
  • Q3 to Q5 may be each independently selected from
  • —CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
  • an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium and a C1-C10 alkyl group, and
  • * and *′ are binding sites to M in Formula 1.
  • In some embodiments, in Formula 1, M is Ir and the sum of n1 and n2 is 3; or M is Pt and the sum of n1 and n2 is 2,
  • the organometallic compound represented by Formula 1 does not include an ionic group, and
  • L1 in Formula 1 may be selected from ligands represented by Formulae 2A-1 to 2A-16, 2AA-1, 2AA-2, 2AA-3, 2AA-4, and 2AB, but embodiments are not limited thereto.
  • In some embodiments, in Formula 1, M is Ir and the sum of n1 and n2 is 3; or M is Pt and the sum of n1 and n2 is 2,
  • the organometallic compound represented by Formula 1 does not include an ionic group,
  • L1 in Formula 1 is selected from ligands represented by Formulae 2A-1, 2A-5, 2AA-1 and 2AB, but embodiments are not limited thereto.
  • In some embodiments, in Formula 1, M is Ir and the sum of n1 and n2 is 3; or M is Pt and the sum of n1 and n2 is 2, the organometallic compound represented by Formula 1 is neutral, L1 in Formula 1 is selected from ligands represented by Formulae 2A-1, 2A-5, 2AA-1, and 2AB, L2 in Formula 1 is selected from ligands represented by Formulae 3-1 to 3-111 (for example, ligands represented by Formulae 3-1(1) to 3-1(59) and 3-111), but embodiments are not limited thereto.
  • In some embodiments, in Formula 1, M is Ir and the sum of n1 and n2 is 3; or M is Pt and the sum of n1 and n2 is 2,
  • the organometallic compound represented by Formula 1 does not include an ionic group, and
  • L1 in Formula 1 is selected from ligands represented by Formulae 2A(1) to 2A(40), but embodiments are not limited thereto.
  • In some embodiments, in Formula 1, M is Ir and the sum of n1 and n2 is 3; or M is Pt and the sum of n1 and n2 is 2,
  • the organometallic compound represented by Formula 1 does not include an ionic group,
  • L1 in Formula 1 is selected from ligands represented by Formulae 2A(1) to 2A(40), and
  • L2 in Formula 1 is selected from ligands represented by Formulae 3-1 to 3-111 (for example, ligands represented by Formulae 3-1(1) to 3-1(59) and 3-111), but embodiments are not limited thereto
  • For example, the organometallic compound represented by Formula 1 may be one of Compounds 1 to 481 below, but is not limited thereto.
  • Figure US20160155962A1-20160602-C00059
    Figure US20160155962A1-20160602-C00060
    Figure US20160155962A1-20160602-C00061
    Figure US20160155962A1-20160602-C00062
    Figure US20160155962A1-20160602-C00063
    Figure US20160155962A1-20160602-C00064
    Figure US20160155962A1-20160602-C00065
    Figure US20160155962A1-20160602-C00066
    Figure US20160155962A1-20160602-C00067
    Figure US20160155962A1-20160602-C00068
    Figure US20160155962A1-20160602-C00069
    Figure US20160155962A1-20160602-C00070
    Figure US20160155962A1-20160602-C00071
    Figure US20160155962A1-20160602-C00072
    Figure US20160155962A1-20160602-C00073
    Figure US20160155962A1-20160602-C00074
    Figure US20160155962A1-20160602-C00075
    Figure US20160155962A1-20160602-C00076
    Figure US20160155962A1-20160602-C00077
    Figure US20160155962A1-20160602-C00078
    Figure US20160155962A1-20160602-C00079
    Figure US20160155962A1-20160602-C00080
    Figure US20160155962A1-20160602-C00081
    Figure US20160155962A1-20160602-C00082
    Figure US20160155962A1-20160602-C00083
    Figure US20160155962A1-20160602-C00084
    Figure US20160155962A1-20160602-C00085
    Figure US20160155962A1-20160602-C00086
    Figure US20160155962A1-20160602-C00087
    Figure US20160155962A1-20160602-C00088
    Figure US20160155962A1-20160602-C00089
    Figure US20160155962A1-20160602-C00090
    Figure US20160155962A1-20160602-C00091
    Figure US20160155962A1-20160602-C00092
    Figure US20160155962A1-20160602-C00093
    Figure US20160155962A1-20160602-C00094
    Figure US20160155962A1-20160602-C00095
    Figure US20160155962A1-20160602-C00096
    Figure US20160155962A1-20160602-C00097
    Figure US20160155962A1-20160602-C00098
    Figure US20160155962A1-20160602-C00099
    Figure US20160155962A1-20160602-C00100
    Figure US20160155962A1-20160602-C00101
    Figure US20160155962A1-20160602-C00102
    Figure US20160155962A1-20160602-C00103
    Figure US20160155962A1-20160602-C00104
    Figure US20160155962A1-20160602-C00105
    Figure US20160155962A1-20160602-C00106
    Figure US20160155962A1-20160602-C00107
    Figure US20160155962A1-20160602-C00108
    Figure US20160155962A1-20160602-C00109
    Figure US20160155962A1-20160602-C00110
    Figure US20160155962A1-20160602-C00111
    Figure US20160155962A1-20160602-C00112
    Figure US20160155962A1-20160602-C00113
    Figure US20160155962A1-20160602-C00114
    Figure US20160155962A1-20160602-C00115
    Figure US20160155962A1-20160602-C00116
    Figure US20160155962A1-20160602-C00117
    Figure US20160155962A1-20160602-C00118
    Figure US20160155962A1-20160602-C00119
    Figure US20160155962A1-20160602-C00120
    Figure US20160155962A1-20160602-C00121
    Figure US20160155962A1-20160602-C00122
    Figure US20160155962A1-20160602-C00123
    Figure US20160155962A1-20160602-C00124
    Figure US20160155962A1-20160602-C00125
    Figure US20160155962A1-20160602-C00126
    Figure US20160155962A1-20160602-C00127
    Figure US20160155962A1-20160602-C00128
  • Figure US20160155962A1-20160602-C00129
    Figure US20160155962A1-20160602-C00130
    Figure US20160155962A1-20160602-C00131
    Figure US20160155962A1-20160602-C00132
    Figure US20160155962A1-20160602-C00133
    Figure US20160155962A1-20160602-C00134
    Figure US20160155962A1-20160602-C00135
    Figure US20160155962A1-20160602-C00136
    Figure US20160155962A1-20160602-C00137
    Figure US20160155962A1-20160602-C00138
    Figure US20160155962A1-20160602-C00139
    Figure US20160155962A1-20160602-C00140
    Figure US20160155962A1-20160602-C00141
    Figure US20160155962A1-20160602-C00142
    Figure US20160155962A1-20160602-C00143
    Figure US20160155962A1-20160602-C00144
    Figure US20160155962A1-20160602-C00145
    Figure US20160155962A1-20160602-C00146
    Figure US20160155962A1-20160602-C00147
    Figure US20160155962A1-20160602-C00148
    Figure US20160155962A1-20160602-C00149
    Figure US20160155962A1-20160602-C00150
    Figure US20160155962A1-20160602-C00151
    Figure US20160155962A1-20160602-C00152
    Figure US20160155962A1-20160602-C00153
    Figure US20160155962A1-20160602-C00154
    Figure US20160155962A1-20160602-C00155
    Figure US20160155962A1-20160602-C00156
    Figure US20160155962A1-20160602-C00157
    Figure US20160155962A1-20160602-C00158
    Figure US20160155962A1-20160602-C00159
    Figure US20160155962A1-20160602-C00160
    Figure US20160155962A1-20160602-C00161
    Figure US20160155962A1-20160602-C00162
    Figure US20160155962A1-20160602-C00163
    Figure US20160155962A1-20160602-C00164
    Figure US20160155962A1-20160602-C00165
    Figure US20160155962A1-20160602-C00166
    Figure US20160155962A1-20160602-C00167
    Figure US20160155962A1-20160602-C00168
    Figure US20160155962A1-20160602-C00169
    Figure US20160155962A1-20160602-C00170
    Figure US20160155962A1-20160602-C00171
    Figure US20160155962A1-20160602-C00172
    Figure US20160155962A1-20160602-C00173
    Figure US20160155962A1-20160602-C00174
    Figure US20160155962A1-20160602-C00175
    Figure US20160155962A1-20160602-C00176
    Figure US20160155962A1-20160602-C00177
    Figure US20160155962A1-20160602-C00178
    Figure US20160155962A1-20160602-C00179
    Figure US20160155962A1-20160602-C00180
    Figure US20160155962A1-20160602-C00181
    Figure US20160155962A1-20160602-C00182
    Figure US20160155962A1-20160602-C00183
    Figure US20160155962A1-20160602-C00184
    Figure US20160155962A1-20160602-C00185
    Figure US20160155962A1-20160602-C00186
    Figure US20160155962A1-20160602-C00187
    Figure US20160155962A1-20160602-C00188
    Figure US20160155962A1-20160602-C00189
    Figure US20160155962A1-20160602-C00190
    Figure US20160155962A1-20160602-C00191
    Figure US20160155962A1-20160602-C00192
    Figure US20160155962A1-20160602-C00193
    Figure US20160155962A1-20160602-C00194
    Figure US20160155962A1-20160602-C00195
    Figure US20160155962A1-20160602-C00196
    Figure US20160155962A1-20160602-C00197
    Figure US20160155962A1-20160602-C00198
    Figure US20160155962A1-20160602-C00199
    Figure US20160155962A1-20160602-C00200
    Figure US20160155962A1-20160602-C00201
    Figure US20160155962A1-20160602-C00202
    Figure US20160155962A1-20160602-C00203
    Figure US20160155962A1-20160602-C00204
    Figure US20160155962A1-20160602-C00205
  • Regarding the organometallic compound represented by Formula 1, L1 is selected from a ligand represented by Formula 2A, and b4 in Formula 2A is 1 or more. That is, a substituent of a pyridine-based ring in Formula 2A may include at least one group —Si(R1)(R2)(R3). Group —Si(R1)(R2)(R3) increases spin density of metal M in Formula 1. Accordingly, an organic light-emitting device using the organometallic compound represented by Formula 1 having the ligand represented by Formula 2A may have high efficiency.
  • Also, X1 in Formula 2A may be selected from O, S, S(═O)2, N(R21), and Si(R22)(R23). When X1 is selected from the groups above, charge mobility of the organometallic compound represented by Formula 1 having the ligand represented by Formula 2A improves, and energy levels thereof are easily controllable. Accordingly, efficiency and lifespan of an organic light-emitting device using the organometallic compound may be improved.
  • For example, HOMO, LUMO, singlet (Si) and triplet (Ti) energy levels of the organometallic compounds 1, 2, 8, 22, 139, 146, 304, 305, 321, 323, 327 and 419 were evaluated by using a DFT method of Gaussian program (structurally optimized at a level of B3LYP, 6-31G(d,p)). Evaluation results are shown in Table 1 below.
  • TABLE 1
    S1 energy T1 energy level
    Compound No. HOMO(eV) LUMO(eV) level (eV) (eV)
    Compound 1 −4.842 −1.262 2.887 2.616
    Compound 2 −4.874 −1.309 2.869 2.591
    Compound 8 −4.812 −1.249 2.875 2.608
    Compound 22 −4.812 −1.250 2.889 2.633
    Compound 139 −4.827 −1.283 2.867 2.589
    Compound 146 −4.829 −1.261 2.872 2.510
    Compound 304 −4.781 −1.267 2.837 2.586
    Compound 305 −4.773 −1.244 2.852 2.600
    Compound 321 −4.856 −1.369 2.803 2.555
    Compound 323 −4.820 −1.281 2.849 2.591
    Compound 327 −4.863 −1.304 2.887 2.614
    Compound 419 −4.756 −1.331 2.753 2.525
    Figure US20160155962A1-20160602-C00206
    Figure US20160155962A1-20160602-C00207
    Figure US20160155962A1-20160602-C00208
    Figure US20160155962A1-20160602-C00209
    Figure US20160155962A1-20160602-C00210
    Figure US20160155962A1-20160602-C00211
    Figure US20160155962A1-20160602-C00212
    Figure US20160155962A1-20160602-C00213
    Figure US20160155962A1-20160602-C00214
    Figure US20160155962A1-20160602-C00215
    Figure US20160155962A1-20160602-C00216
    Figure US20160155962A1-20160602-C00217
  • From Table 1, it is confirmed that the organometallic compound represented by Formula 1 has electric characteristics that are suitable for use as a material for manufacturing a device, for example, an organic light-emitting device.
  • Synthesis methods of the organometallic compound represented by Formula 1 may be recognizable by one of ordinary skill in the art by referring to Synthesis Examples provided below.
  • The organometallic compound represented by Formula 1 is suitable for use in an organic layer of an organic light-emitting device, for example, for use as a dopant in an emission layer of the organic layer. Thus, another aspect provides an organic light-emitting device that includes:
  • a first electrode;
  • a second electrode; and
  • an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes an emission layer and at least one organometallic compound represented by Formula 1.
  • The organic light-emitting device may have, due to the inclusion of an organic layer including the organometallic compound represented by Formula 1, a low driving voltage, high efficiency, high power, and a long lifespan.
  • The organometallic compound of Formula 1 may be used between a pair of electrodes of an organic light-emitting device. For example, the organometallic compound represented by Formula 1 may be included in the emission layer. In this regard, the organometallic compound may act as a dopant, and the emission layer may further include a host (that is, an amount of the organometallic compound represented by Formula 1 is smaller than an amount of the host).
  • The expression “(an organic layer) includes at least one organometallic compounds” used herein may include an embodiment in which (an organic layer) includes identical organometallic compounds of Formula 1 and an embodiment in which (an organic layer) includes two or more different organometallic compounds of Formula 1.
  • For example, the organic layer may include, as the organometallic compound, only Compound 1. In this regard, Compound 1 may be included in an emission layer of the organic light-emitting device. In some embodiments, the organic layer may include, as the organometallic compound, Compound 1 and Compound 2. In this regard, Compound 1 and Compound 2 may be included in an identical layer (for example, Compound 1 and Compound 2 all may be included in an emission layer).
  • The first electrode may be an anode, which is a hole injection electrode, and the second electrode may be a cathode, which is an electron injection electrode; or the first electrode may be a cathode, which is an electron injection electrode, and the second electrode may be an anode, which is a hole injection electrode.
  • For example, the first electrode is an anode, and the second electrode is a cathode, and the organic layer includes i) a hole transport region between the first electrode and the emission layer, and ii) an electron transport region between the emission layer and the second electrode, and the hole transport region includes at least one selected from a hole injection layer, a hole transport layer, and an electron blocking layer, and the electron transport region includes at least one selected from a hole blocking layer, an electron transport layer, and an electron injection layer.
  • The term “organic layer” as used herein refers to a single layer and/or a plurality of layers disposed between the first electrode and the second electrode of an organic light-emitting device. The “organic layer” may include, in addition to an organic compound, an organometallic complex including metal.
  • FIG. 1 is a schematic view of an organic light-emitting device 10 according to an embodiment. Hereinafter, the structure of an organic light-emitting device according to an embodiment and a method of manufacturing an organic light-emitting device according to an embodiment will be described in connection with FIG. 1. The organic light-emitting device 10 includes a first electrode 11, an organic layer 15, and a second electrode 19, which are sequentially stacked.
  • In FIG. 1, a substrate may be additionally disposed under the first electrode 11 or above the second electrode 19. As the substrate, any substrate that is used in general organic light-emitting devices may be used. The substrate may be a glass substrate or transparent plastic substrate, each with excellent mechanical strength, thermal stability, transparency, surface smoothness, ease of handling, and water-resistance.
  • The first electrode 11 may be formed by depositing or sputtering a material for forming the first electrode on the substrate. The first electrode 11 may be an anode. The material for the first electrode 11 may be selected from materials with a high work function to allow holes be easily provided. The first electrode 11 may be a reflective electrode or a transmissive electrode. The material for the first electrode may be, for example, indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO2), and zinc oxide (ZnO). In some embodiments, magnesium (Mg), aluminum (Al), aluminum-lithium (Al—Li), calcium (Ca), magnesium-indium (Mg—In), or magnesium-silver (Mg—Ag) may be used as the material for the first electrode.
  • The first electrode 11 may have a single-layer structure or a multi-layer structure including two or more layers. For example, the first electrode 11 may have a three-layered structure of ITO/Ag/ITO, but the structure of the first electrode 11 is not limited thereto.
  • An organic layer 15 is disposed on the first electrode 11.
  • The organic layer 15 may include a hole transport region, an emission layer, and an electron transport region.
  • The hole transport region may be disposed between the first electrode 11 and the emission layer.
  • The hole transport region may include at least one selected from a hole injection layer, a hole transport layer, an electron blocking layer, and a buffer layer.
  • The hole transport region may include only either a hole injection layer or a hole transport layer. In some embodiments, the hole transport region may have a structure of hole injection layer/hole transport layer or hole injection layer/hole transport layer/electron blocking layer, which are sequentially stacked in this stated order from the first electrode 11.
  • A hole injection layer may be formed on the first electrode 11 by using various methods, such as vacuum deposition, spin coating, casting, or Langmuir-Blodgett (LB).
  • When a hole injection layer is formed by vacuum deposition, the deposition conditions may vary according to a material that is used to form the hole injection layer, and the structure and thermal characteristics of the hole injection layer. For example, the deposition conditions may include a deposition temperature of about 100 to about 500° C., a vacuum pressure of about 10−8 to about 10−3 torr, and a deposition rate of about 0.01 to about 100 Angstroms per second (A/sec). However, the deposition conditions are not limited thereto.
  • When the hole injection layer is formed using spin coating, coating conditions may vary according to the material used to form the hole injection layer, and the structure and thermal properties of the hole injection layer. For example, a coating speed may be from about 2,000 revolutions per minute (rpm) to about 5,000 rpm, and a temperature at which a heat treatment is performed to remove a solvent after coating may be from about 80° C. to about 200° C. However, the coating conditions are not limited thereto.
  • Conditions for a hole transport layer and an electron blocking layer may be understood by referring to conditions for forming the hole injection layer.
  • The hole transport region may include at least one selected from m-MTDATA, TDATA, 2-TNATA, NPB, β-NPB, TPD, Spiro-TPD, Spiro-NPB, methylated NPB, TAPC, HMTPD, 4,4′,4″-tris(N-carbazolyl)triphenylamine (TCTA), polyaniline/dodecylbenzenesulfonic acid (Pani/DBSA), poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT/PSS), polyaniline/camphor sulfonic acid (PANI/CSA), (polyaniline)/poly(4-styrenesulfonate) (Pani/PSS), a compound represented by Formula 201 below, and a compound represented by Formula 202 below:
  • Figure US20160155962A1-20160602-C00218
  • Ar101 to Ar102 in Formula 201 may be each independently selected from
  • a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an acenaphthylene group, a fluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylenylene group, a naphthacenylene group, a picenylene group, a perylenylene group, and a pentacenylene group; and
  • a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an acenaphthylene group, a fluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylenylene group, a naphthacenylene group, a picenylene group, a perylenylene group, and a pentacenylene group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a C3-C10 cycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group.
  • In Formula 201, xa and xb may be each independently an integer of 0 to 5, or 0, 1, or 2. For example, xa is 1 and xb is 0, but xa and xb are not limited thereto.
  • R101 to R108, R111 to R119 and R121 to R124 in Formulae 201 and 202 may be each independently selected from
  • a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group (for example, a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, and so on), or a C1-C10 alkoxy group (for example, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, and so on);
  • a C1-C10 alkyl group or a C1-C10alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, and a phosphoric acid group or a salt thereof;
  • a phenyl group, a naphthyl group, an anthracenyl group, a fluorenyl group, and a pyrenyl group; and
  • a phenyl group, a naphthyl group, an anthracenyl group, a fluorenyl group, and a pyrenyl group, each substituted with at least one selected from deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group, and a C1-C10 alkoxy group, but they are not limited thereto.
  • R109 in Formula 201 may be selected from
  • a phenyl group, a naphthyl group, an anthracenyl group and a pyridinyl group; and
  • a phenyl group, a naphthyl group, an anthracenyl group and a pyridinyl group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a phenyl group, a naphthyl group, an anthracenyl group, and a pyridinyl group.
  • According to an embodiment, the compound represented by Formula 201 may be represented by Formula 201A, but is not limited thereto:
  • Figure US20160155962A1-20160602-C00219
  • R101, R111, R112, and R109 in Formula 201A may be understood by referring to the description provided herein.
  • For example, the compound represented by Formula 201, and the compound represented by Formula 202 may include compounds HT1 to HT20 illustrated below, but are not limited thereto.
  • Figure US20160155962A1-20160602-C00220
    Figure US20160155962A1-20160602-C00221
    Figure US20160155962A1-20160602-C00222
    Figure US20160155962A1-20160602-C00223
    Figure US20160155962A1-20160602-C00224
    Figure US20160155962A1-20160602-C00225
  • A thickness of the hole transport region may be in a range of about 100 Angstroms (Å) to about 10,000 Å, for example, about 100 Å to about 1,000 Å. When the hole transport region includes a hole injection layer and a hole transport layer, the thickness of the hole injection layer may be in a range of about 100 Å to about 10,000 Å, and for example, about 100 Å to about 1,000 Å, and the thickness of the hole transport layer may be in a range of about 50 Å to about 2,000 Å, and for example, about 100 Å to about 1,500 Å. When the thicknesses of the hole transport region, the hole injection layer, and the hole transport layer are within these ranges, satisfactory hole transporting characteristics may be obtained without a substantial increase in driving voltage.
  • The hole transport region may further include, in addition to these materials, a charge-generation material for the improvement of conductive properties. The charge-generation material may be homogeneously or non-homogeneously dispersed in the hole transport region.
  • The charge-generation material may be, for example, a p-dopant. The p-dopant may be one selected from a quinone derivative, a metal oxide, and a cyano group-containing compound, but embodiments are not limited thereto. Non-limiting examples of the p-dopant are a quinone derivative, such as tetracyanoquinonedimethane (TCNQ) or 2,3,5,6-tetrafluoro-tetracyano-1,4-benzoquinonedimethane (F4-TCNQ); a metal oxide, such as a tungsten oxide or a molybdenium oxide; and a cyano group-containing compound, such as Compound HT-D1 below, but are not limited thereto.
  • Figure US20160155962A1-20160602-C00226
  • The hole transport region may include a buffer layer.
  • Also, the buffer layer may compensate for an optical resonance distance according to a wavelength of light emitted from the emission layer, and thus, efficiency of a formed organic light-emitting device may be improved.
  • Then, an emission layer (EML) may be formed on the hole transport region by vacuum deposition, spin coating, casting, LB deposition, or the like. When the emission layer is formed by vacuum deposition or spin coating, the deposition or coating conditions may be similar to those applied to form the hole injection layer, although the deposition or coating conditions may vary according to the material that is used to form the emission layer.
  • Meanwhile, when the hole transport region includes an electron blocking layer, a material for the electron blocking layer may be selected from materials for the hole transport region described above and materials for a host to be explained later. However, the material for the electron blocking layer is not limited thereto. For example, when the hole transport region includes an electron blocking layer, a material for the electron blocking layer may be mCP, which will be explained below.
  • The emission layer may include a host and a dopant, and the dopant may include the organometallic compound represented by Formula 1.
  • The host may include at least one selected form TPBi, TBADN, ADN (also referred to as “DNA”), CBP, CDBP, TCP, mCP, Compound H50, and Compound H51:
  • Figure US20160155962A1-20160602-C00227
    Figure US20160155962A1-20160602-C00228
  • In some embodiments, the host may further include a compound represented by Formula 301 below.
  • Figure US20160155962A1-20160602-C00229
  • Ar111 to Ar112 in Formula 301 may be each independently selected from
  • a phenylene group, a naphthylene group, a phenanthrenylene group, and a pyrenylene group; and
  • a phenylene group, a naphthylene group, a phenanthrenylene group, and a pyrenylene group, each substituted with at least one selected from a phenyl group, a naphthyl group, and an anthracenyl group.
  • Ar113 to Ar116 in Formula 301 may be each independently selected from a C1-C10 alkyl group, a phenyl group, a naphthyl group, a phenanthrenyl group, and a pyrenyl group; and
  • a phenyl group, a naphthyl group, a phenanthrenyl group, and a pyrenyl group, each substituted with at least one selected from a phenyl group, a naphthyl group, and an anthracenyl group.
  • g, h, i, and j in Formula 301 may be each independently an integer of 0 to 4, for example, an integer of 0, 1, or 2.
  • Ar113 to Ar116 in Formula 301 may be each independently selected from
  • a C1-C10 alkyl group substituted with at least one selected from a phenyl group, a naphthyl group, and an anthracenyl group;
  • a phenyl group, a naphthyl group, an anthracenyl group, a pyrenyl, a phenanthrenyl group, and a fluorenyl group;
  • a phenyl group, a naphthyl group, an anthracenyl group, a pyrenyl group, a phenanthrenyl group, and a fluorenyl group, each substituted with at least one selected from deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a phenyl group, a naphthyl group, an anthracenyl group, a pyrenyl group, a phenanthrenyl group, and a fluorenyl group; and
  • Figure US20160155962A1-20160602-C00230
  • but embodiments are not limited thereto.
  • In some embodiments, the host may include a compound represented by Formula 302 below:
  • Figure US20160155962A1-20160602-C00231
  • Ar122 to Ar125 in Formula 302 are the same as described in detail in connection with Ar113 in Formula 301.
  • Ar126 and Ar127 in Formula 302 may be each independently a C1-C10 alkyl group (for example, a methyl group, an ethyl group, or a propyl group).
  • k and l in Formula 302 may be each independently an integer of 0 to 4. For example, k and l may be 0, 1, or 2.
  • The compound represented by Formula 301 and the compound represented by Formula 302 may include Compounds H1 to H42 illustrated below, but are not limited thereto.
  • Figure US20160155962A1-20160602-C00232
    Figure US20160155962A1-20160602-C00233
    Figure US20160155962A1-20160602-C00234
    Figure US20160155962A1-20160602-C00235
    Figure US20160155962A1-20160602-C00236
    Figure US20160155962A1-20160602-C00237
    Figure US20160155962A1-20160602-C00238
    Figure US20160155962A1-20160602-C00239
    Figure US20160155962A1-20160602-C00240
    Figure US20160155962A1-20160602-C00241
  • When the organic light-emitting device is a full color organic light-emitting device, the emission layer may be patterned into a red emission layer, a green emission layer, and a blue emission layer. In some embodiments, due to a stack structure including a red emission layer, a green emission layer, and/or a blue emission layer, the emission layer may emit white light.
  • When the emission layer includes a host and a dopant, an amount of the dopant may be in a range of about 0.01 to about 15 parts by weight based on 100 parts by weight of the host, but is not limited thereto.
  • A thickness of the emission layer may be in a range of about 100 Å to about 1000 Å, for example, about 200 Å to about 600 Å. When the thickness of the emission layer is within this range, excellent light-emission characteristics may be obtained without a substantial increase in driving voltage.
  • Then, an electron transport region may be disposed on the emission layer.
  • The electron transport region may include at least one selected from a hole blocking layer, an electron transport layer, and an electron injection layer.
  • For example, the electron transport region may have a structure of hole blocking layer/electron transport layer/electron injection layer or a structure of electron transport layer/electron injection layer, but the structure of the electron transport region is not limited thereto. The electron transport layer may have a single-layered structure or a multi-layer structure including two or more different materials.
  • Conditions for forming the hole blocking layer, the electron transport layer, and the electron injection layer which constitute the electron transport region may be understood by referring to the conditions for forming the hole injection layer.
  • When the electron transport layer includes a hole blocking layer, the hole blocking layer may include, for example, at least one of BCP, Bphen, and Balq but is not limited thereto.
  • Figure US20160155962A1-20160602-C00242
  • A thickness of the hole blocking layer may be in a range of about 20 Å to about 1,000 Å, for example, about 30 Å to about 300 Å. When the thickness of the hole blocking layer is within these ranges, the hole blocking layer may have improved hole blocking ability without a substantial increase in driving voltage.
  • The electron transport layer may further include at least one selected from BCP, Bphen, Alq3, BAlq, TAZ, and NTAZ.
  • Figure US20160155962A1-20160602-C00243
  • In some embodiments, the electron transport layer may include at least one of ET1 and ET2, but are not limited thereto:
  • Figure US20160155962A1-20160602-C00244
  • A thickness of the electron transport layer may be in a range of about 100 Å to about 1,000 Å, for example, about 150 Å to about 500 Å. When the thickness of the electron transport layer is within the range described above, the electron transport layer may have satisfactory electron transport characteristics without a substantial increase in driving voltage.
  • Also, the electron transport layer may further include, in addition to the materials described above, a metal-containing material.
  • The metal-containing material may include a Li complex. The Li complex may include, for example, Compound ET-D1 (lithium quinolate, LiQ) or ET-D2.
  • Figure US20160155962A1-20160602-C00245
  • The electron transport region may include an electron injection layer (EIL) that allows electrons to be easily provided from a second electrode 19.
  • The electron injection layer may include at least one selected from, LiF, NaCl, CsF, Li2O, BaO, and LiQ.
  • A thickness of the electron injection layer may be in a range of about 1 Å to about 100 Å, about 3 Å to about 90 Å. When the thickness of the electron injection layer is within the range described above, the electron injection layer may have satisfactory electron injection characteristics without a substantial increase in driving voltage.
  • The second electrode 19 is disposed on the organic layer 15. The second electrode 19 may be a cathode. A material for forming the second electrode 19 may be selected from metal, an alloy, an electrically conductive compound, and a combination thereof, which have a relatively low work function. For example, lithium (Li), magnesium (Mg), aluminum (Al), aluminum-lithium (Al—Li), calcium (Ca), magnesium-indium (Mg—In), or magnesium-silver (Mg—Ag) may be used as a material for forming the second electrode 19. In some embodiments, to manufacture a top emission type light-emitting device, a transmissive electrode formed using ITO or IZO may be used as the second electrode 19.
  • Hereinbefore, the organic light-emitting device has been described with reference to FIG. 1, but is not limited thereto.
  • A C1-C60 alkyl group as used herein refers to a linear or branched aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms. Detailed examples thereof are a methyl group, an ethyl group, a propyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a pentyl group, an iso-amyl group, and a hexyl group. A C1-C60 alkylene group as used herein refers to a divalent group having the same structure as the C1-C60 alkyl group.
  • A C1-C60 alkoxy group as used herein refers to a monovalent group represented by —OA101 (wherein A101 is the C1-C60 alkyl group). Detailed examples thereof are a methoxy group, an ethoxy group, and an isopropyloxy group.
  • A C2-C60 alkenyl group as used herein refers to a hydrocarbon group having at least one carbon-carbon double bond in the middle or at the terminal of the C2-C60 alkyl group.
  • Detailed examples thereof are an ethenyl group, a propenyl group, and a butenyl group. A C2-C60 alkenylene group as used herein refers to a divalent group having the same structure as the C2-C60 alkenyl group.
  • A C2-C60 alkynyl group as used herein refers to a hydrocarbon group having at least one carbon-carbon triple bond in the middle or at the terminal of the C2-C60 alkyl group. Detailed examples thereof are an ethynyl group, and a propynyl group. A C2-C60 alkynylene group as used herein refers to a divalent group having the same structure as the C2-C60 alkynyl group.
  • A C3-C10 cycloalkyl group as used herein refers to a monovalent hydrocarbon monocyclic group having 3 to 10 carbon atoms. Detailed examples thereof are a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, and a cycloheptyl group. A C3-C10 cycloalkylene group as used herein refers to a divalent group having the same structure as the C3-C10 cycloalkyl group.
  • A C1-C10 heterocycloalkyl group as used herein refers to a monovalent monocyclic group having at least one hetero atom selected from N, O, P, and S as a ring-forming atom and 1 to 10 carbon atoms. Detailed examples thereof are a tetrahydrofuranyl group, and a tetrahydrothiophenyl group. A C1-C10 heterocycloalkylene group as used herein refers to a divalent group having the same structure as the C1-C10 heterocycloalkyl group.
  • A C3-C10 cycloalkenyl group as used herein refers to a monovalent monocyclic group that has 3 to 10 carbon atoms and at least one double bond in the ring thereof, and which is not aromatic. Detailed examples thereof are a cyclopentenyl group, a cyclohexenyl group, and a cycloheptenyl group. A C3-C10 cycloalkenylene group as used herein refers to a divalent group having the same structure as the C3-C10 cycloalkenyl group.
  • A C1-C10 heterocycloalkenyl group as used herein refers to a monovalent monocyclic group that has at least one hetero atom selected from N, O, P, and S as a ring-forming atom, 1 to 10 carbon atoms, and at least one double bond in its ring. Detailed examples of the C1-C10 heterocycloalkenyl group are a 2,3-dihydrofuranyl group and a 2,3-dihydrothiophenyl group. A C1-C10 heterocycloalkenylene group as used herein refers to a divalent group having the same structure as the C1-C10 heterocycloalkenyl group.
  • A C6-C60 aryl group as used herein refers to a monovalent group having a carbocyclic aromatic system having 6 to 60 carbon atoms, and a C6-C60 arylene group as used herein refers to a divalent group having a carbocyclic aromatic system having 6 to 60 carbon atoms. Detailed examples of the C6-C60 aryl group are a phenyl group, a naphthyl group, an anthracenyl group, a phenanthrenyl group, a pyrenyl group, and a chrysenyl group. When the C6-C60 aryl group and the C6-C60 arylene group each include two or more rings, the rings may be fused to each other.
  • A C1-C60 heteroaryl group as used herein refers to a monovalent group having a carbocyclic aromatic system that has at least one hetero atom selected from N, O, P, and S as a ring-forming atom, and 1 to 60 carbon atoms. A C1-C60 heteroarylene group as used herein refers to a divalent group having a carbocyclic aromatic system that has at least one hetero atom selected from N, O, P, and S as a ring-forming atom, and 1 to 60 carbon atoms. Examples of the C1-C60 heteroaryl group are a pyridinyl group, a pyrimidinyl group, a pyrazinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, and an isoquinolinyl group. When the C1-C60 heteroaryl group and the C1-C60 heteroarylene group each include two or more rings, the rings may be fused to each other.
  • A C6-C60 aryloxy group as used herein indicates —OA102 (wherein A102 is the C6-C60 aryl group), and a C6-C60 arylthio group as used herein indicates —SA103 (wherein A103 is the C6-C60 aryl group).
  • A monovalent non-aromatic condensed polycyclic group as used herein refers to a monovalent group (for example, having 8 to 60 carbon atoms) that has two or more rings condensed to each other, only carbon atoms as a ring forming atom, and which is non-aromatic in the entire molecular structure. A detailed example of the monovalent non-aromatic condensed polycyclic group is a fluorenyl group. A divalent non-aromatic condensed polycyclic group as used herein refers to a divalent group having the same structure as the monovalent non-aromatic condensed polycyclic group.
  • A monovalent non-aromatic condensed heteropolycyclic group as used herein refers to a monovalent group (for example, having 2 to 60 carbon atoms) that has two or more rings condensed to each other, has a heteroatom selected from N, O P, and S, other than carbon atoms, as a ring forming atom, and which is non-aromatic in the entire molecular structure. An example of the monovalent non-aromatic condensed heteropolycyclic group is a carbazolyl group. A divalent non-aromatic condensed heteropolycyclic group as used herein refers to a divalent group having the same structure as the monovalent non-aromatic condensed heteropolycyclic group.
  • At least one of substituents of the substituted C1-C60 alkyl group, substituted C2-C60 alkenyl group, substituted C2-C60 alkynyl group, substituted C1-C60 alkoxy group, substituted C3-C10 cycloalkyl group, substituted C1-C10 heterocycloalkyl group, substituted C3-C10 cycloalkenyl group, substituted C1-C10 heterocycloalkenyl group, substituted C6-C60 aryl group, substituted C6-C60 aryloxy group, substituted C6-C60 arylthio group, substituted C1-C60 heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group, and substituted monovalent non-aromatic condensed heteropolycyclic group is selected from
  • a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group;
  • a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q11)(Q12), —Si(Q13)(Q14)(Q15), —B(Q16)(Q17), and —P(═O)(Q18)(Q19);
  • a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group;
  • a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q21)(Q22), —Si(Q23)(Q24)(Q25), —B(Q26)(Q27), and —P(═O)(Q28)(Q29); and
  • —N(Q31)(Q32), —Si(Q33)(Q34)(Q35), —B(Q36)(Q37), and —P(═O)(Q38)(Q39);
  • wherein Q1 to Q9, Q11 to Q19, Q21 to Q29, and Q31 to Q39 may be each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.
  • Hereinafter, a compound and an organic light-emitting device according to embodiments are described in detail with reference to Synthesis Example and Examples. However, the organic light-emitting device is not limited thereto. The wording “B was used instead of A” used in describing Synthesis Examples means that an amount of A used was identical to an amount of B used, in terms of a molar equivalent.
  • EXAMPLE Synthesis Example 1 Synthesis of Compound 1
  • Synthesis of Compound A1
  • Figure US20160155962A1-20160602-C00246
  • 210 milliliters (mL) of tetrahydrofuran (THF) and 70 mL of distilled water were mixed with 2-bromo-5-(trimethylsilyl)pyridine (9 grams (g), 39.09 millimoles (mmol)), 2-(dibenzo[b,d]furan-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (13.22 g, 44.96 mmol), Pd(PPh3)4 (2.26 g, 1.95 mmol), and K2CO3 (16.21 g, 117.27 mmol). The resultant mixture was stirred under reflux for 18 hours. The temperature was decreased to room temperature. The product was extracted by using methylene chloride (MC). The organic layer was dried with anhydrous magnesium sulfate (MgSO4) and the solution was filtered. The obtained filtrate was concentrated and the obtained residual was purified by column chromatography (MC:Hexane=1:1) to obtain 7.4 g (60%) of Compound A1.
  • Synthesis of Compound M2A
  • Figure US20160155962A1-20160602-C00247
  • 2-phenylpyridine (14.66 g, 94.44 mmol) and iridium chloride (14.80 g, 41.97 mmol) were mixed with 210 mL of ethoxyethanol and 70 mL of distilled water. The mixture was stirred under reflux for 24 hours to carry out the reaction. Upon completion of the reaction, the temperature was reduced to room temperature. The resultant solid was separated by filtration and thoroughly washed with water, methanol, and hexane in the stated order. The obtained solid was dried in a vacuum oven to obtain 19.5 g (87%) of Compound M2A.
  • Synthesis of Compound M1A
  • Figure US20160155962A1-20160602-C00248
  • Compound M2A (6.01 g, 5.60 mmol) was mixed with 45 mL of MC, and a solution of AgOTf (2.88 g, 11.21 mmol) in 15 mL of methanol was added thereto. The flask was wrapped with an aluminum foil to block the sunlight, and the mixture was stirred at room temperature for 18 hours to carry out the reaction. The generated solid was removed by celite filtration, and a filtrate was concentrated under reduced pressure. The obtained solid (Compound M1A) was used for the subsequent reaction without purification.
  • Synthesis of Compound 1
  • Figure US20160155962A1-20160602-C00249
  • Compound M1A (8 g, 11.22 mmol) and Compound A1 (4.28 g, 13.47 mmol) were mixed with 100 mL of ethanol, and the resulting mixture was stirred under reflux for 18 hours to carry out the reaction. Upon completion of the reaction, the temperature was reduced to room temperature. The resultant mixture was filtered to separate a solid, which was thoroughly washed with ethanol and hexane. The product was purified by column chromatography (MC:hexane=40:60) to obtain 2.54 g (28%) of Compound 1. The obtained product was confirmed by Mass Spectroscopy and HPLC analysis.
  • HRMS(MALDI) calcd for C42H34IrN3OSi: m/z 817.2100. Found: 817.2104.
  • Synthesis Example 2 Synthesis of Compound 3
  • Synthesis of Compound B1
  • Figure US20160155962A1-20160602-C00250
  • 8.5 g (55%) of Compound B1 was prepared in the same manner as used to synthesize Compound A1 in Synthesis Example 1, except that 2-bromo-5-(trimethylsilyl)pyridine (9 g, 39.09 mmol) and 9-phenyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole (13.47 g, 46.92 mmol) were used instead of 2-bromo-5-(trimethylsilyl)pyridine (9 g, 39.09 mmol) and 2-(dibenzo[b,d]furan-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (13.22 g, 44.96 mmol), respectively.
  • Synthesis of Compound 3
  • Figure US20160155962A1-20160602-C00251
  • 2.4 g (32%) of Compound 3 was obtained in the same manner as used to synthesize Compound 1 in Synthesis Example 1, except that Compound M1A (6.00 g, 8.42 mmol) and Compound B1 (3.97 g, 10.10 mmol) were used instead of Compound M1A(8 g, 11.22 mmol) and Compound A1 (4.28 g, 13.47 mmol), respectively. The obtained product was confirmed by Mass Spectroscopy and HPLC analysis.
  • HRMS(MALDI) calcd for C48H39IrN4Si: m/z 892.2573. Found: 892.2575.
  • Synthesis Example 3 Synthesis of Compound 8
  • Synthesis of Compound C3
  • Figure US20160155962A1-20160602-C00252
  • 2,5-dibromo-4-methylpyridine (18.55 g, 73.92 mmol), dibenzo[b,d]furan-2-ylboronic acid (18.81 g, 88.70 mmol), Pd(OAc)2 (1.66 g, 7.39 mmol), PPh3 (3.88 g, 14.78 mmol), and K2CO3 (20.43 g, 147.84 mmol) were mixed with 200 mL of acetonitrile and 100 mL of methanol. The resultant mixture was stirred at a temperature of 50° C. for 18 hours. Upon completion, the reaction mixture was cooled to room temperature and filtered. The product was extracted with methylene chloride (MC). The combined organic extracts were dried over anhydrous magnesium sulfate (MgSO4) and filtered. A filtrate was subjected to reduced pressure and the obtained residual was purified by column chromatography (MC:Hx=60:40) to obtain 13.0 g (52%) of Compound C3.
  • Synthesis of Compound C2
  • Figure US20160155962A1-20160602-C00253
  • 300 mL of THF was added to Compound C3 (12.24 g, 36.20 mmol) and the mixture was cooled to a temperature of −78° C. A 1.6 molar (M) solution of n-BuLi (33.94 mL, 54.30 mmol) was slowly added thereto, and the resulting mixture was stirred at a temperature of −78° C. for 1 hour. TMSCl (6.89 mL, 54.30 mmol) was added thereto, and a reaction was carried out at a temperature of −78° C. for 1 hour, and then at room temperature for 12 hours. The organic layer separated therefrom was extracted with methylene chloride (MC). and the combined organic extracts were dried with anhydrous magnesium sulfate. The dried solution was filtered and the filtrate was concentrated under reduced pressure. The crude product was purified by column chromatography (EA:Hexane=4:96) to obtain 8.0 g (67%) of Compound C2.
  • Synthesis of Compound 8
  • Figure US20160155962A1-20160602-C00254
  • 2.05 g (29%) of Compound 8 was prepared in the same manner as Compound 1 in Synthesis Example 1, except that Compound M1A (6.00 g, 8.42 mmol) and Compound C2 (3.35 g, 10.11 mmol) were used instead of Compound M1A (8 g, 11.22 mmol) and Compound A1 (4.46 g, 13.47 mmol), respectively. The obtained product was confirmed by Mass Spectroscopy and HPLC analysis.
  • HRMS(MALDI) calcd for C43H36IrN3OSi: m/z 831.2257. Found: 831.2259.
  • Synthesis Example 4 Synthesis of Compound 22
  • Synthesis of Compound C1
  • Figure US20160155962A1-20160602-C00255
  • Compound C2 (7.1 g, 21.42 mmol) was mixed with 100 mL of THF, and the resulting mixture was cooled to a temperature of −78° C. Lithium diisopropylamide (LDA, 26.8 mL, 53.54 mmol) was slowly added thereto. The resulting mixture was stirred at a temperature of −78° C. for 1 hour and at room temperature for 1.5 hours to perform the reaction. The temperature was reduced to −78° C. 2-bromopropane (5.03 mL, 53.54 mmol) was slowly added to the resulting mixture, the reaction mixture was warmed to room temperature, and the reaction was carried out for 12 hours. The product was extracted with MC. The combined organic extracts were dried over anhydrous magnesium sulfate. The dried organic solution was filtered and a filtrate was concentrated under reduced pressure. The product was purified by column chromatography (EA:Hexane=4:96) to obtain 6.80 g (85%) of Compound C1.
  • Synthesis of Compound 22
  • Figure US20160155962A1-20160602-C00256
  • 2.30 g (31%) of Compound 22 was prepared in the same manner as Compound 1 in Synthesis Example 1, except that Compound M1A (6.00 g, 8.42 mmol) and Compound C1 (3.77 g, 10.10 mmol) were used instead of Compound M1A (8 g, 11.22 mmol) and Compound A1 (4.28 g, 13.47 mmol), respectively. The obtained product was confirmed by Mass Spectroscopy and HPLC analysis.
  • HRMS(MALDI) calcd for C46H42IrN3OSi: m/z 873.2726. Found: 873.2720.
  • Synthesis Example 5 Synthesis of Compound 35
  • Synthesis of Compound D3
  • Figure US20160155962A1-20160602-C00257
  • 13.7 g (69%) of Compound D3 was prepared in the same manner as Compound C3 of Synthesis Example 3, except that 2,5-dibromo-4-phenylpyridine (15.64 g, 49.97 mmol) and dibenzo[b,d]furan-2-ylboronic acid (12.71 g, 55.96 mmol) were used instead of 2,5-dibromo-4-methylpyridine (18.55 g, 73.92 mmol) and dibenzo[b,d]furan-2-ylboronic acid (18.81 g, 88.70 mmol), respectively.
  • Synthesis of Compound D2
  • Figure US20160155962A1-20160602-C00258
  • 6.6 g (66%) of Compound D2 was prepared in the same manner as Compound C2 in Synthesis Example 3, except that Compound D3 (10.17 g, 25.41 mmol) was used instead of Compound C3 (12.24 g, 36.20 mmol).
  • Synthesis of Compound 35
  • Figure US20160155962A1-20160602-C00259
  • 1.8 g (24%) of Compound 35 was prepared in the same manner as Compound 1 in Synthesis Example 1, except that Compound M1A (6.00 g, 8.41 mmol) and Compound D2 (3.97 g, 10.09 mmol) were used instead of Compound M1A (8 g, 11.22 mmol) and Compound A1 (4.46 g, 13.47 mmol), respectively. The obtained product was confirmed by Mass Spectroscopy and HPLC analysis.
  • HRMS(MALDI) calcd for C48H38IrN3OSi: m/z 893.2413. Found: 893.2417.
  • Synthesis Example 6 Synthesis of Compound 300
  • Synthesis of Compound M2B
  • Figure US20160155962A1-20160602-C00260
  • 17.2 g (86%) of Compound M2B was prepared in the same manner as Compound M2A in Synthesis Example 1, except that 2-phenyl-5-(trimethylsilyl)pyridine (15.05 g, 66.14 mmol) and iridium chloride (4.10 g, 11.62 mmol) were respectively used instead of 2-phenylpyridine (14.66 g, 94.44 mmol) and iridium chloride (14.80 g, 41.97 mmol).
  • Synthesis of Compound M1B
  • Figure US20160155962A1-20160602-C00261
  • Compound M1B was prepared in the same manner as Compound M1A in Synthesis Example 1, except that Compound M2B (4.76 g, 3.5 mmol) was used instead of Compound M2A (6.01 g, 5.60 mmol).
  • Synthesis of Compound 300
  • Figure US20160155962A1-20160602-C00262
  • 1.3 g (19%) of Compound 300 was prepared in the same manner as Compound 1 in Synthesis Example 1, except that Compound M1B (6.00 g, 6.99 mmol) and Compound A1 (2.66 g, 8.39 mmol) were used instead of Compound M1A (8 g, 11.22 mmol) and Compound A1 (4.46 g, 13.47 mmol), respectively. The obtained product was confirmed by Mass Spectroscopy and HPLC analysis.
  • HRMS(MALDI) calcd for C48H50IrN3OSi3: m/z 961.2891. Found: 961.2887.
  • Synthesis Example 7 Synthesis of Compound 305
  • Figure US20160155962A1-20160602-C00263
  • 1.4 g (20%) of Compound 305 was prepared in the same manner as Compound 1 in Synthesis Example 1, except that Compound M1B (6.00 g, 6.99 mmol) and Compound C1 (3.14 g, 8.39 mmol) were used instead of Compound MIA (8 g, 11.22 mmol) and Compound A1 (4.46 g, 13.47 mmol), respectively. The obtained product was confirmed by Mass Spectroscopy and HPLC analysis.
  • HRMS(MALDI) calcd for C52H58IrN3OSi3: m/z 1017.3517. Found: 1017.3512.
  • Synthesis Example 8 Synthesis of Compound 322
  • Figure US20160155962A1-20160602-C00264
  • 1.1 g (16%) of Compound 322 was prepared in the same manner as used to synthesize Compound 1 in Synthesis Example 1, except that Compound M1B (6.00 g, 6.99 mmol) and Compound E1 (2.78 g, 8.74 mmol) were used instead of Compound M1A (8 g, 11.22 mmol) and Compound A1 (4.46 g, 13.47 mmol), respectively. The obtained product was confirmed by Mass Spectroscopy and HPLC analysis.
  • HRMS(MALDI) calcd for C47H49IrN4OSi3: m/z 962.2843. Found: 962.2843.
  • Synthesis Example 9 Synthesis of Compound 327
  • Synthesis of Compound M2C
  • Figure US20160155962A1-20160602-C00265
  • 8.3 g (83%) of Compound M2C was prepared in the same manner as Compound M2A in Synthesis Example 1, except that Compound A1 (8.3 g, 26.15 mmol) and iridium chloride (4.10 g, 11.62 mmol) were used instead of 2-phenylpyridine (14.66 g, 94.44 mmol) and iridium chloride (14.80 g, 41.97 mmol), respectively.
  • Synthesis of Compound M1C
  • Figure US20160155962A1-20160602-C00266
  • Compound M1C was prepared in the same manner as Compound M1A in Synthesis Example 1, except that Compound M2C (4.973 g, 2.89 mmol) was used instead of Compound M2A (6.01 g, 5.60 mmol).
  • Synthesis of Compound 293
  • Figure US20160155962A1-20160602-C00267
  • 1.4 g (25%) of Compound 327 was prepared in the same manner as Compound 1 in Synthesis Example 1, except that Compound M1C (6.00 g, 5.78 mmol) and phenylpyridine (1.08 g, 6.94 mmol) were used instead of Compound M1A (8 g, 11.22 mmol) and Compound A1 (4.46 g, 13.47 mmol), respectively. The obtained product was confirmed by Mass Spectroscopy and HPLC analysis.
  • HRMS(MALDI) calcd for C51H44IrN3O2Si2: m/z 979.2601. Found: 979.2603.
  • Example 1
  • An ITO glass substrate was cut to a size of 50 millimeters (mm)×50 mm×0.5 mm, sonicated in acetone, isopropyl alcohol, and pure water, for 15 minutes in each solvent, and washed by exposure to UV ozone for 30 minutes.
  • Subsequently, on the ITO electrode (anode) on the glass substrate, m-MTDATA was deposited at a deposition speed of 1 Å/sec to form a hole injection layer having a thickness of 600 Å, and α-NPD was deposited on the hole injection layer at a deposition rate of 1 Å/sec to form a hole transport layer having a thickness of 250 Å.
  • Compound 1 (dopant) and CBP (host) were co-deposited on the hole transport layer at a deposition rate of 0.1 Å/sec and a deposition rate of 1 Å/sec, respectively, to form an emission layer having a thickness of 400 Å.
  • BAlq was deposited on the emission layer at a deposition rate of 1 Å/sec to form a hole blocking layer having a thickness of 50 Å, and Alq3 was deposited on the hole blocking layer to form an electron transport layer having a thickness of 300 Å. Subsequently, LiF was deposited on the electron transport layer to form an electron injection layer having a thickness of 10 Å, and Al was vacuum deposited on the electron injection layer to form a second electrode (cathode) having a thickness of 1,200 Å, thereby completing the manufacture of an organic light-emitting device having a structure of ITO/m-MTDATA (600 Å)/α-NPD (250 Å)/CBP+10% (Compound 1) (400 Å)/BAlq (50 Å) /Alq3 (300 Å)/LiF (10 Å) /Al (1,200 Å).
  • Examples 2 to 9 and Comparative Example 1
  • Organic light-emitting devices were manufactured in the same manner as in Example 1, except that in forming an emission layer, corresponding compounds shown in Table 2 were used as a dopant instead of Compound 1.
  • Evaluation Example 1 Evaluation on Characteristics of Organic Light-Emitting Devices
  • The driving voltage, efficiency, power, color purity, and lifespan (T95) of the organic light-emitting devices manufactured according to Examples 1 to 9 and Comparative Example 1 were evaluated. Results thereof are shown in Table 2. This evaluation was performed using a current-voltage meter (Keithley 2400) and a luminance meter (Minolta Cs-1000A), and the lifespan (T95) (at 6000 nit) was evaluated by measuring the amount of time that elapsed until luminance was reduced to 95% of the initial brightness of 100%.
  • TABLE 2
    Driv-
    ing Life-
    Vol- Effi- span
    tage ciency Power (hr)
    Dopant (V) (cd/A) (lm/W) CIEx CIEy (T95)
    Example 1 Compound 1 5.0 49.0 30.8 0.339 0.605 210
    Example 2 Compound 3 4.8 47.5 31.1 0.340 0.602 145
    Example 3 Compound 8 4.9 48.0 30.8 0.338 0.607 195
    Example 4 Compound 22 5.0 48.5 30.5 0.336 0.604 200
    Example 5 Compound 35 5.2 50.5 30.5 0.356 0.605 230
    Example 6 Compound 300 4.8 51.0 33.4 0.360 0.607 230
    Example 7 Compound 305 4.9 50.0 32.0 0.345 0.605 210
    Example 8 Compound 322 4.9 51.5 33.0 0.355 0.604 150
    Example 9 Compound 327 4.6 50.5 34.5 0.340 0.607 180
    Compara- Compound A 5.1 47.5 29.2 0.340 0.607  85
    tive
    Example 1
    Figure US20160155962A1-20160602-C00268
    Figure US20160155962A1-20160602-C00269
    Figure US20160155962A1-20160602-C00270
    Figure US20160155962A1-20160602-C00271
    Figure US20160155962A1-20160602-C00272
    Figure US20160155962A1-20160602-C00273
    Figure US20160155962A1-20160602-C00274
    Figure US20160155962A1-20160602-C00275
    Figure US20160155962A1-20160602-C00276
    Figure US20160155962A1-20160602-C00277
  • Referring to Table 2, it was confirmed that the organic light-emitting devices manufactured according to Examples 1 to 9 have a lower driving voltage, higher efficiency, higher power, higher color purity, and a longer lifespan, than the organic light-emitting devices manufactured according to Comparative Example 1.
  • The organometallic compound according to embodiments has excellent electric characteristics and thermal stability. Accordingly, an organic light-emitting device including the organometallic compound may have excellent driving voltage, efficiency, power, color purity, and lifespan characteristics.
  • It should be understood that the exemplary embodiments described therein should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each exemplary embodiment should typically be considered as available for other similar features or aspects in other exemplary embodiments.
  • While one or more exemplary embodiments have been described with reference to the FIGURES, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present inventive concept as defined by the following claims.

Claims (20)

What is claimed is:
1. An organometallic compound represented by Formula 1:
Figure US20160155962A1-20160602-C00278
wherein
M in Formula 1 is selected from Ir, Pt, Os, Ti, Zr, Hf, Eu, Tb, Tm, and Rh,
in Formula 1, L1 is a ligand represented by Formula 2A, n1 is 1, 2, or 3, and when n1 is 2 or more, 2 or more L1 are identical or different,
in Formula 1, L2 is selected from a monovalent organic ligand, a divalent organic ligand, a trivalent organic ligand, and a tetravalent organic ligand, n2 is 0, 1, 2, 3, or 4, and when n2 is 2 or more, 2 or more L2 are identical or different,
L1 and L2 in Formula 1 are different from each other,
R1 to R3 in Formula 2A are each independently selected from a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, and —Si(Q51)(Q52)(Q53),
X1 in Formula 2A is selected from O, S, S(═O)2, N(R21), and Si(R22)(R23),
in Formula 2A, Y1 is N, C(R41), or a carbon atom connected to a pyridine ring, Y2 is N, C(R42), or a carbon atom connected to a pyridine ring, Y3 is N, C(R43), or a carbon atom connected to a pyridine ring, Y4 is N, C(R44), or a carbon atom connected to a pyridine ring, Y5 is N or C(R45), Y6 is N or C(R46), Y7 is N or C(R47), Y8 is N or C(R48), and one of Y1 to Y4 is a carbon atom connected to a pyridine ring,
R11, R21 to R23 and R41 to R48 in Formula 2A are each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, —SF5, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9), and 2 or more R11 optionally are linked to each other to form a saturated or unsaturated C4-C60 ring, two or more of R41 to R44 are optionally linked to each other to form a saturated or unsaturated C4-C60 ring, and two or more of R45 to R48 are optionally linked to each other to form a saturated or unsaturated C4-C60 ring,
in Formula 2A, b1 is an integer selected from 0 to 3, and b4 is an integer selected from 1 to 4,
* and *′ in Formula 2A are binding sites to M in Formula 1,
at least one of substituents of the substituted C1-C60 alkyl group, substituted C2-C60 alkenyl group, substituted C2-C60 alkynyl group, substituted C1-C60 alkoxy group, substituted C3-C10 cycloalkyl group, substituted C1-C10 heterocycloalkyl group, substituted C3-C10 cycloalkenyl group, substituted C1-C10 heterocycloalkenyl group, substituted C6-C60 aryl group, substituted C6-C60 aryloxy group, substituted C6-C60 arylthio group, substituted C1-C60 heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group, and substituted monovalent non-aromatic condensed heteropolycyclic group is selected from
a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group;
a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q11)(Q12), —Si(Q13)(Q14)(Q15), —B(Q16)(Q17), and —P(═O)(Q18)(Q19);
a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group;
a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q21)(Q22), —Si(Q23)(Q24)(Q25), —B(Q26)(Q27), and —P(═O)(Q28)(Q29); and
—N(Q31)(Q32), —Si(Q33)(Q34)(Q35), —B(Q36)(Q37), and —P(═O)(Q38)(Q39);
wherein Q1 to Q9, Q11 to Q19, Q21 to Q29, Q31 to Q39 and Q51 to Q53 are each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.
2. The organometallic compound of claim 1, wherein
in Formula 1, M is Ir and the sum of n1 and n2 is 3; or M is Pt and the sum of n1 and n2 is 2, and
the organometallic compound does not comprise an ionic group.
3. The organometallic compound of claim 1, wherein
R1 to R3 in Formula 2A are each independently selected from
a C1-C20 alkyl group, a C1-C20 alkoxy group, and —Si(Q51)(Q52)(Q53);
a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group; and
a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group; and
Q51 to Q53 are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group.
4. The organometallic compound of claim 1, wherein
R1 to R3 in Formula 2A are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, a naphthyl group, and —Si(Q51)(Q52)(Q53); and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group; and
Q51 to Q53 are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group.
5. The organometallic compound of claim 1, wherein
R11, R21 to R23 and R41 to R48 in Formula 2A are each independently selected from
a hydrogen, a deuterium, —F, —Cl, —Br, —I, —SF5, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, and a C1-C20 alkoxy group;
a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group, a C1-C10 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C14 aryl group, a C1-C14 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group;
a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C14 aryl group, a C1-C14 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group;
a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C14 aryl group, a C1-C14 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C14 aryl group, a C1-C14 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group; and
—N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9);
wherein Q1 to Q9 are each independently selected from a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C14 aryl group, a substituted or unsubstituted C1-C14 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.
6. The organometallic compound of claim 1, wherein
R11, R21 to R23 and R41 to R48 in Formula 2A are each independently selected from
a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, —SF5, a C1-C20 alkyl group, and a C1-C20 alkoxy group;
a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group;
a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group; and
—B(Q6)(Q7) and —P(═O)(Q8)(Q9),
wherein Q6 to Q9 are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group.
7. The organometallic compound of claim 1, wherein
R11, R21 to R23 and R41 to R48 in Formula 2A are each independently selected from
a hydrogen, a deuterium, —F, a cyano group, a nitro group, —SF5, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl, norbornanyl group, a norbornenyl, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a cyano group, a nitro group, a C1-C10 alkyl group, a C1-C10 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group; and
—B(Q6)(Q7) and —P(═O)(Q8)(Q9),
wherein Q6 to Q9 are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group.
8. The organometallic compound of claim 1, wherein
R11, R21 to R23 and R41 to R48 in Formula 2A are each independently selected from a hydrogen, a deuterium, —F, a cyano group, a nitro group, —SF5, —CH3, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, groups represented by Formulae 9-1 to 9-17, and groups represented by Formulae 10-1 to 10-30:
Figure US20160155962A1-20160602-C00279
Figure US20160155962A1-20160602-C00280
Figure US20160155962A1-20160602-C00281
Figure US20160155962A1-20160602-C00282
wherein in Formulae 9-1 to 9-17 and 10-1 to 10-30, * is a binding site to a neighboring atom.
9. The organometallic compound of claim 1, wherein
two groups R11 in Formula 2A are linked to each other to form a substituted or unsubstituted cyclohexane or a substituted or unsubstituted benzene.
10. The organometallic compound of claim 1, wherein
L1 is selected from ligands represented by Formulae 2A-1 to 2A-16:
Figure US20160155962A1-20160602-C00283
Figure US20160155962A1-20160602-C00284
Figure US20160155962A1-20160602-C00285
Figure US20160155962A1-20160602-C00286
wherein in Formulae 2A-1 to 2A-16, R1 to R3, X1, Y1 to Y8, R11, and b1 and b4 are the same as defined in claim 1, R15 is the same as R11, b5 is an integer selected from 0 to 8 and * and *′ are binding sites to M in Formula 1.
11. The organometallic compound of claim 10, wherein
in Formulae 2A-1 to 2A-16, Y1 is C(R41), Y2 is C(R42), Y3 is C(R43), Y4 is C(R44), Y5 is C(R45), Y6 is C(R46), Y7 is C(R47), and Y8 is C(R48);
in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14,
and 2A-16, Y1 is N, Y4 is C(R44), Y5 is C(R45), Y6 is C(R46), Y7 is C(R47), and Y8 is C(R48);
in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14,
and 2A-16, Y1 is C(R41), Y4 is C(R44), Y5 is N, Y6 is C(R46), Y7 is C(R47), and Y8 is C(R48);
in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14,
and 2A-16, Y1 is C(R41), Y4 is C(R44), Y5 is C(R45), Y6 is N, Y7 is C(R47), and Y8 is C(R48);
in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14,
and 2A-16, Y1 is N, Y4 is C(R44), Y5 is N, Y6 is C(R46), Y7 is C(R47), and Y8 is C(R48);
in Formulae 2A-1, 2A-2, 2A-4, 2A-5, 2A-6, 2A-8, 2A-9, 2A-10, 2A-12, 2A-13, 2A-14,
and 2A-16, Y1 is N, Y4 is C(R44), Y5 is C(R45), Y6 is N, Y7 is C(R47), and Y8 is C(R48);
in Formulae 2A-3, 2A-7, 2A-11, and 2A-15, Y3 is N, Y4 is C(R44), Y5 is C(R45), Y6 is C(R46), Y7 is C(R47), and Y8 is C(R48);
in Formulae 2A-3, 2A-7, 2A-11, and 2A-15 Y3 is C(R43), Y4 is C(R44), Y5 is N, Y6 is C(R46), Y7 is C(R47), and Y8 is C(R48);
in Formulae 2A-3, 2A-7, 2A-11, and 2A-15, Y3 is C(R43), Y4 is C(R44), Y5 is C(R45), Y6 is N, Y7 is C(R47), and Y8 is C(R48);
in Formulae 2A-3, 2A-7, 2A-11, and 2A-15, Y3 is N, Y4 is C(R44), Y5 is N, Y6 is C(R46), Y7 is C(R47), and Y8 is C(R48); or
in Formulae 2A-3, 2A-7, 2A-11, and 2A-15, Y3 is N, Y4 is C(R44), Y5 is C(R45), Y6 is N, Y7 is C(R47), and Y8 is C(R48)
12. The organometallic compound of claim 1, wherein
L1 in Formula 1 is selected from groups represented by Formulae 2AA-1, 2AA-2, 2AA-3, 2AA-4, and 2AB below:
Figure US20160155962A1-20160602-C00287
in Formulae 2AA-1, 2AA-2, 2AA-3, 2AA-4, and 2AB,
R1 to R3 are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, a naphthyl group, and —Si(Q51)(Q52)(Q53); and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium and a C1-C10 alkyl group,
Q51 to Q53 are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium, a C1-C10 alkyl group, and a phenyl group,
X1 is selected from O, S, S(═O)2, N(R21), and Si(R22)(R23),
descriptions of Y1 to Y8 are the same as in claim 1,
R11, R15, and R21 to R23 are each independently selected from
a hydrogen, a deuterium, —F, a cyano group, a nitro group, —SF5, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl, norbornanyl group, a norbornenyl, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, an n-hexyl group, an isohexyl group, a sec-hexyl group, a tert-hexyl group, an n-heptyl group, an isoheptyl group, a sec-heptyl group, a tert-heptyl group, an n-octyl group, an isooctyl group, a sec-octyl group, a tert-octyl group, an n-nonyl group, an isononyl group, a sec-nonyl group, a tert-nonyl group, an n-decyl group, an isodecyl group, a sec-decyl group, a tert-decyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a cyano group, a nitro group, a C1-C10 alkyl group, a C1-C10 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group; and
—B(Q6)(Q7) and —P(═O)(Q8)(Q9),
wherein Q6 to Q9 are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, and a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium and a C1-C10 alkyl group,
b5 is an integer selected from 0 to 8, and
* and *′ are binding sites to M in Formula 1.
13. The organometallic compound of claim 1, wherein
L1 is selected from ligands represented by Formulae 2A(1) to 2A(40):
Figure US20160155962A1-20160602-C00288
Figure US20160155962A1-20160602-C00289
Figure US20160155962A1-20160602-C00290
Figure US20160155962A1-20160602-C00291
Figure US20160155962A1-20160602-C00292
Figure US20160155962A1-20160602-C00293
Figure US20160155962A1-20160602-C00294
Figure US20160155962A1-20160602-C00295
Figure US20160155962A1-20160602-C00296
wherein in Formulae 2A(1) to 2A(40), descriptions of R1 to R3, X1, Y1 to Y8, and R1 are the same as in claim 1, R11a and R11b are understood by referring to the description of R11, provided that R11, R11a, and R11b are not hydrogen, and each of * and *′ is a binding site to M in Formula 1.
14. The organometallic compound of claim 1, wherein
L2 in Formula 1 is selected from ligands represented by Formulae 3A to 3G:
Figure US20160155962A1-20160602-C00297
wherein in Formulae 3A to 3G,
Y11 to Y16 are each independently C or N, Y11 and Y12 are linked to each other by a single bond or a double bond, Y13 and Y14 are linked to each other by a single bond or a double bond, and Y15 and Y16 are linked to each other by a single bond or a double bond,
CY3 to CY5 are each independently selected from a C5-C60 carbocyclic group and a C2-C60 heterocyclic group.
a1 to a3 are each independently an integer selected from 1 to 5;
A1 is P or As;
X11a, X11b, X12a, X12b, X13a, and X13b are each independently selected from N, O, N(R34), P(R35)(R36), and As(R37)(R38), provided that none of X12a, X12b, X13a, and X13b are N or O;
R33″ and R34″ are each independently selected from a single bond, a double bond, a substituted or unsubstituted C1-C5 alkylene group, a substituted or unsubstituted C2-C5 alkenylene group, and a substituted or unsubstituted C6-C10 arylene group;
Z1 to Z3, R31, R32a, R32b, R32c, R33a, R33b, R34 to R38, R35a, R35b, R35c, and R35d are each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9),
* and *′ each indicate binding sites to M in Formula 1;
at least one of substituents of the substituted C1-C5 alkylene group, substituted C2-C5 alkenylene group, substituted C6-C10 arylene group, substituted C1-C60 alkyl group, substituted C2-C60 alkenyl group, substituted C2-C60 alkynyl group, substituted C1-C60 alkoxy group, substituted C3-C10 cycloalkyl group, substituted C1-C10 heterocycloalkyl group, substituted C3-C10 cycloalkenyl group, substituted C1-C10 heterocycloalkenyl group, substituted C6-C60 aryl group, substituted C6-C60 aryloxy group, substituted C6-C60 arylthio group, substituted C1-C60 heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group and substituted monovalent non-aromatic condensed heteropolycyclic group is selected from
a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group;
a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, and a C1-C60 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q11)(Q12), —Si(Q13)(Q14)(Q15), —B(Q16)(Q17), and —P(═O)(Q18)(Q19);
a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group;
a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, and a monovalent non-aromatic condensed heteropolycyclic group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q21)(Q22), —Si(Q23)(Q24)(Q25), —B(Q26)(Q27), and —P(═O)(Q28)(Q29); and
—N(Q31)(Q32), —Si(Q33)(Q34)(Q35), —B(Q36)(Q37), and —P(═O)(Q38)(Q39);
wherein Q1 to Q9, Q11 to Q19, Q21 to Q29, and Q31 to Q39 are each independently selected from a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.
15. The organometallic compound of claim 1, wherein
L2 in Formula 1 is selected from ligands represented by Formulae 3-1 to 3-111:
Figure US20160155962A1-20160602-C00298
Figure US20160155962A1-20160602-C00299
Figure US20160155962A1-20160602-C00300
Figure US20160155962A1-20160602-C00301
Figure US20160155962A1-20160602-C00302
Figure US20160155962A1-20160602-C00303
Figure US20160155962A1-20160602-C00304
Figure US20160155962A1-20160602-C00305
Figure US20160155962A1-20160602-C00306
Figure US20160155962A1-20160602-C00307
Figure US20160155962A1-20160602-C00308
Figure US20160155962A1-20160602-C00309
Figure US20160155962A1-20160602-C00310
Figure US20160155962A1-20160602-C00311
Figure US20160155962A1-20160602-C00312
Figure US20160155962A1-20160602-C00313
Figure US20160155962A1-20160602-C00314
Figure US20160155962A1-20160602-C00315
Figure US20160155962A1-20160602-C00316
Figure US20160155962A1-20160602-C00317
wherein in Formulae 3-1 to 3-111,
Z1, Z2, Z1a, Z1b, Z2a, Z2b, Z2c, R34a, R34b, and R34c are each independently selected from
a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, —SF5, a C1-C20 alkyl group, and a C1-C20 alkoxy group;
a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C10 alkyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a pyridinyl group, and a pyrimidinyl group;
a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group;
a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C20 alkyl group, a C1-C20 alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, an adamantanyl group, norbornanyl group, a norbornenyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a pyrrolyl group, a thiophenyl group, a furanyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzoimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, and an imidazopyrimidinyl group; and
—N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —B(Q6)(Q7), and —P(═O)(Q8)(Q9);
Q1 to Q9 and Q44 to Q49 are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, and a phenyl group, and a naphthyl group, each substituted with at least one selected from a deuterium and a C1-C10 alkyl group,
aa2 and ab2 are each independently 1 or 2,
aa3 and ab3 are each independently selected from 1, 2, and 3,
aa4 and ab4 are each independently selected from, 1, 2, 3, and 4, and
* and *′ each indicate binding sites to M in Formula 1.
16. The organometallic compound of claim 1, wherein
L2 in Formula 1 is selected from ligands represented by Formulae 3-1 (1) to 3-1(59), and 3-111:
Figure US20160155962A1-20160602-C00318
Figure US20160155962A1-20160602-C00319
Figure US20160155962A1-20160602-C00320
Figure US20160155962A1-20160602-C00321
Figure US20160155962A1-20160602-C00322
Figure US20160155962A1-20160602-C00323
Figure US20160155962A1-20160602-C00324
Figure US20160155962A1-20160602-C00325
Figure US20160155962A1-20160602-C00326
Figure US20160155962A1-20160602-C00327
Figure US20160155962A1-20160602-C00328
wherein in Formulae 3-1(1) to 3-1(59) and Formula 3-111:
Z1, Z2, Z1a, Z1b, Z1c, Z1d, Z2a, Z2b, Z2c, Z2d, R34a, R34b, and R34c are each independently selected from a deuterium, —F, a cyano group, a nitro group, —SF5, —CH3, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, —Si(Q3)(Q4)(Q5), groups represented by Formulae 9-1 to 9-17, and groups represented by Formulae 10-1 to 10-30,
Q3 to Q5 are each independently selected from
—CH3, —CD3, —CD2H, —CDH2, —CH2CH3, —CH2CD3, —CH2CD2H, —CH2CDH2, —CHDCH3, —CHDCD2H, —CHDCDH2, —CHDCD3, —CD2CD3, —CD2CD2H, and —CD2CDH2;
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, a phenyl group, and a naphthyl group; and
an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, an isopentyl group, a sec-pentyl group, a tert-pentyl group, and a phenyl group, each substituted with at least one selected from a deuterium and a C1-C10 alkyl group, and
* and *′ are binding sites to M in Formula 1,
Figure US20160155962A1-20160602-C00329
Figure US20160155962A1-20160602-C00330
Figure US20160155962A1-20160602-C00331
Figure US20160155962A1-20160602-C00332
wherein in Formulae 9-1 to 9-17 and 10-1 to 10-30, * is a binding site to a neighboring atom.
17. The organometallic compound of claim 1, wherein
the organometallic compound is one of Compounds 1 to 481:
Figure US20160155962A1-20160602-C00333
Figure US20160155962A1-20160602-C00334
Figure US20160155962A1-20160602-C00335
Figure US20160155962A1-20160602-C00336
Figure US20160155962A1-20160602-C00337
Figure US20160155962A1-20160602-C00338
Figure US20160155962A1-20160602-C00339
Figure US20160155962A1-20160602-C00340
Figure US20160155962A1-20160602-C00341
Figure US20160155962A1-20160602-C00342
Figure US20160155962A1-20160602-C00343
Figure US20160155962A1-20160602-C00344
Figure US20160155962A1-20160602-C00345
Figure US20160155962A1-20160602-C00346
Figure US20160155962A1-20160602-C00347
Figure US20160155962A1-20160602-C00348
Figure US20160155962A1-20160602-C00349
Figure US20160155962A1-20160602-C00350
Figure US20160155962A1-20160602-C00351
Figure US20160155962A1-20160602-C00352
Figure US20160155962A1-20160602-C00353
Figure US20160155962A1-20160602-C00354
Figure US20160155962A1-20160602-C00355
Figure US20160155962A1-20160602-C00356
Figure US20160155962A1-20160602-C00357
Figure US20160155962A1-20160602-C00358
Figure US20160155962A1-20160602-C00359
Figure US20160155962A1-20160602-C00360
Figure US20160155962A1-20160602-C00361
Figure US20160155962A1-20160602-C00362
Figure US20160155962A1-20160602-C00363
Figure US20160155962A1-20160602-C00364
Figure US20160155962A1-20160602-C00365
Figure US20160155962A1-20160602-C00366
Figure US20160155962A1-20160602-C00367
Figure US20160155962A1-20160602-C00368
Figure US20160155962A1-20160602-C00369
Figure US20160155962A1-20160602-C00370
Figure US20160155962A1-20160602-C00371
Figure US20160155962A1-20160602-C00372
Figure US20160155962A1-20160602-C00373
Figure US20160155962A1-20160602-C00374
Figure US20160155962A1-20160602-C00375
Figure US20160155962A1-20160602-C00376
Figure US20160155962A1-20160602-C00377
Figure US20160155962A1-20160602-C00378
Figure US20160155962A1-20160602-C00379
Figure US20160155962A1-20160602-C00380
Figure US20160155962A1-20160602-C00381
Figure US20160155962A1-20160602-C00382
Figure US20160155962A1-20160602-C00383
Figure US20160155962A1-20160602-C00384
Figure US20160155962A1-20160602-C00385
Figure US20160155962A1-20160602-C00386
Figure US20160155962A1-20160602-C00387
Figure US20160155962A1-20160602-C00388
Figure US20160155962A1-20160602-C00389
Figure US20160155962A1-20160602-C00390
Figure US20160155962A1-20160602-C00391
Figure US20160155962A1-20160602-C00392
Figure US20160155962A1-20160602-C00393
Figure US20160155962A1-20160602-C00394
Figure US20160155962A1-20160602-C00395
Figure US20160155962A1-20160602-C00396
Figure US20160155962A1-20160602-C00397
Figure US20160155962A1-20160602-C00398
Figure US20160155962A1-20160602-C00399
Figure US20160155962A1-20160602-C00400
Figure US20160155962A1-20160602-C00401
Figure US20160155962A1-20160602-C00402
Figure US20160155962A1-20160602-C00403
Figure US20160155962A1-20160602-C00404
Figure US20160155962A1-20160602-C00405
Figure US20160155962A1-20160602-C00406
Figure US20160155962A1-20160602-C00407
Figure US20160155962A1-20160602-C00408
Figure US20160155962A1-20160602-C00409
Figure US20160155962A1-20160602-C00410
Figure US20160155962A1-20160602-C00411
Figure US20160155962A1-20160602-C00412
Figure US20160155962A1-20160602-C00413
Figure US20160155962A1-20160602-C00414
Figure US20160155962A1-20160602-C00415
Figure US20160155962A1-20160602-C00416
Figure US20160155962A1-20160602-C00417
Figure US20160155962A1-20160602-C00418
Figure US20160155962A1-20160602-C00419
Figure US20160155962A1-20160602-C00420
Figure US20160155962A1-20160602-C00421
Figure US20160155962A1-20160602-C00422
Figure US20160155962A1-20160602-C00423
Figure US20160155962A1-20160602-C00424
Figure US20160155962A1-20160602-C00425
Figure US20160155962A1-20160602-C00426
Figure US20160155962A1-20160602-C00427
Figure US20160155962A1-20160602-C00428
Figure US20160155962A1-20160602-C00429
Figure US20160155962A1-20160602-C00430
Figure US20160155962A1-20160602-C00431
Figure US20160155962A1-20160602-C00432
Figure US20160155962A1-20160602-C00433
Figure US20160155962A1-20160602-C00434
Figure US20160155962A1-20160602-C00435
Figure US20160155962A1-20160602-C00436
Figure US20160155962A1-20160602-C00437
Figure US20160155962A1-20160602-C00438
Figure US20160155962A1-20160602-C00439
Figure US20160155962A1-20160602-C00440
Figure US20160155962A1-20160602-C00441
Figure US20160155962A1-20160602-C00442
Figure US20160155962A1-20160602-C00443
Figure US20160155962A1-20160602-C00444
Figure US20160155962A1-20160602-C00445
Figure US20160155962A1-20160602-C00446
Figure US20160155962A1-20160602-C00447
Figure US20160155962A1-20160602-C00448
Figure US20160155962A1-20160602-C00449
Figure US20160155962A1-20160602-C00450
Figure US20160155962A1-20160602-C00451
Figure US20160155962A1-20160602-C00452
Figure US20160155962A1-20160602-C00453
Figure US20160155962A1-20160602-C00454
Figure US20160155962A1-20160602-C00455
Figure US20160155962A1-20160602-C00456
Figure US20160155962A1-20160602-C00457
Figure US20160155962A1-20160602-C00458
Figure US20160155962A1-20160602-C00459
18. An organic light-emitting device comprising:
a first electrode;
a second electrode; and
an organic layer disposed between the first electrode and the second electrode,
wherein the organic layer comprises an emission layer and at least one organometallic compound of claim 1.
19. The organic light-emitting device of claim 18, wherein
the first electrode is an anode,
the second electrode is a cathode, and
the organic layer comprises a hole transport region between the first electrode and the emission layer, and an electron transport region between the emission layer and the second electrode,
wherein the hole transport region comprises at least one of a hole injection layer, a hole transport layer, and an electron blocking layer and
the electron transport region comprises at least one selected from a hole blocking layer, an electron transport layer, and an electron injection layer.
20. The organic light-emitting device of claim 18, wherein the emission layer comprises at least one organometallic compound of claim 1.
US14/951,764 2014-11-28 2015-11-25 Organometallic compound and organic light-emitting device including the same Pending US20160155962A1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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US20160049599A1 (en) * 2014-08-07 2016-02-18 Universal Display Corporation Organic electroluminescent materials and devices
US20160211469A1 (en) * 2015-01-15 2016-07-21 Universal Display Corporation Organic light emitting materials
US20170077426A1 (en) * 2015-09-03 2017-03-16 Universal Display Corporation Organic electroluminescent materials and devices
US10003035B2 (en) 2014-11-28 2018-06-19 Samsung Electronics Co., Ltd. Organometallic compound and organic light-emitting device including the same
US10361381B2 (en) * 2016-08-18 2019-07-23 Universal Display Corporation Organic electroluminescent materials and devices

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014065498A1 (en) * 2012-10-24 2014-05-01 주식회사 두산 Organic electroluminescent device

Cited By (7)

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US10033002B2 (en) 2012-11-09 2018-07-24 Universal Display Corporation Organic electroluminescent materials and devices
US20160049599A1 (en) * 2014-08-07 2016-02-18 Universal Display Corporation Organic electroluminescent materials and devices
US10003035B2 (en) 2014-11-28 2018-06-19 Samsung Electronics Co., Ltd. Organometallic compound and organic light-emitting device including the same
US20160211469A1 (en) * 2015-01-15 2016-07-21 Universal Display Corporation Organic light emitting materials
US9748500B2 (en) * 2015-01-15 2017-08-29 Universal Display Corporation Organic light emitting materials
US20170077426A1 (en) * 2015-09-03 2017-03-16 Universal Display Corporation Organic electroluminescent materials and devices
US10361381B2 (en) * 2016-08-18 2019-07-23 Universal Display Corporation Organic electroluminescent materials and devices

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