WO2023284486A1 - 一种含有喹啉结构单元的四齿环金属铂(ii)和钯(ii)配合物发光材料及其应用 - Google Patents

一种含有喹啉结构单元的四齿环金属铂(ii)和钯(ii)配合物发光材料及其应用 Download PDF

Info

Publication number
WO2023284486A1
WO2023284486A1 PCT/CN2022/099676 CN2022099676W WO2023284486A1 WO 2023284486 A1 WO2023284486 A1 WO 2023284486A1 CN 2022099676 W CN2022099676 W CN 2022099676W WO 2023284486 A1 WO2023284486 A1 WO 2023284486A1
Authority
WO
WIPO (PCT)
Prior art keywords
palladium
platinum
complex
light
metal platinum
Prior art date
Application number
PCT/CN2022/099676
Other languages
English (en)
French (fr)
Inventor
李贵杰
黄笛升
佘远斌
赵晓宇
Original Assignee
浙江工业大学
浙江华显光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江工业大学, 浙江华显光电科技有限公司 filed Critical 浙江工业大学
Priority to KR1020237043565A priority Critical patent/KR20240016305A/ko
Priority to EP22841126.0A priority patent/EP4342893A4/en
Priority to JP2023578858A priority patent/JP2024524203A/ja
Priority to MX2024000284A priority patent/MX2024000284A/es
Publication of WO2023284486A1 publication Critical patent/WO2023284486A1/zh
Priority to US18/545,627 priority patent/US20240164204A1/en

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
    • C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
    • C07F15/0086—Platinum compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H10K50/12—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/30—Coordination compounds
    • H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
    • H10K85/346—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising platinum
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
    • C09K2211/10—Non-macromolecular compounds
    • C09K2211/1003—Carbocyclic compounds
    • C09K2211/1007—Non-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
    • C09K2211/10—Non-macromolecular compounds
    • C09K2211/1018—Heterocyclic compounds
    • C09K2211/1025—Heterocyclic compounds characterised by ligands
    • C09K2211/1029—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
    • C09K2211/10—Non-macromolecular compounds
    • C09K2211/1018—Heterocyclic compounds
    • C09K2211/1025—Heterocyclic compounds characterised by ligands
    • C09K2211/1044—Heterocyclic compounds characterised by ligands containing two nitrogen atoms as heteroatoms
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
    • C09K2211/10—Non-macromolecular compounds
    • C09K2211/1018—Heterocyclic compounds
    • C09K2211/1025—Heterocyclic compounds characterised by ligands
    • C09K2211/1059—Heterocyclic compounds characterised by ligands containing three nitrogen atoms as heteroatoms
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
    • C09K2211/18—Metal complexes
    • C09K2211/185—Metal complexes of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers

Definitions

  • the invention relates to the technical field of metal-organic light-emitting materials, in particular to a four-ring metal platinum (II) and palladium (II) complex light-emitting material containing a quinoline structural unit and an application thereof.
  • OLED Organic Light-Emitting Diode
  • OLED is a new generation of full-color display and lighting technology.
  • OLED is an autonomous light-emitting device that does not require a backlight source and saves energy; it has low driving voltage, fast response, high resolution and contrast, wide viewing angle, and wide operating temperature range; it can also use cheap glass as a substrate.
  • Flexible display devices can be prepared by using the plastic as the substrate; in addition, it also has the advantages of low cost, simple production process, and large-area production. Therefore, OLED has extensive and huge application prospects in high-end electronic products and aerospace; and there is also a huge potential market in the field of flat solid-state lighting.
  • the design and development of luminescent materials is at the heart of the field of OLEDs.
  • the light-emitting materials in early OLED devices are mainly organic small molecule fluorescent materials.
  • spin statistical quantum theory shows that in the case of electroluminescence, the ratio of singlet and triplet excitons (exciton) is 1:3, because traditional fluorescent materials can only use excitons in the singlet excited state, so Its theoretical internal quantum efficiency is only 25%.
  • Professor Forrest of Princeton University and Professor Thompson of University of Southern California discovered the phosphorescence electroluminescence phenomenon of heavy metal organic complex molecules at room temperature in 1998.
  • the heavy metal phosphorescent organic complex molecules that can meet commercial applications are basically cyclometalated iridium(III) complex molecules, and the number is limited.
  • the content of metal platinum in the earth's crust and the annual output worldwide are about ten times that of metal iridium, and the price of IrCl 3 ⁇ H 2 O (1100 RMB/g) used to prepare iridium (III) complex phosphorescent materials is also high.
  • iridium (III) complex phosphorescent materials involves iridium (III) dimers, iridium (III) intermediates Ligand exchange, synthesis of mer-iridium(III) complexes, and isomer conversion of mer-to fac-iridium(III) complexes are four-step reactions, which greatly reduces the overall yield and greatly reduces the raw material IrCl 3 ⁇
  • the utilization rate of H 2 O increases the preparation cost of the iridium (III) complex phosphorescent material.
  • the preparation of platinum (II) complex phosphorescent materials only needs the metallization of the ligand to design the reaction of platinum salt in the last step, and the utilization rate of platinum is high, which can further reduce the preparation cost of platinum (II) complex phosphorescent materials.
  • the preparation cost of platinum (II) complex phosphorescent materials is much lower than that of iridium (III) complex phosphorescent materials.
  • Cyclic metal platinum(II) complexes based on bidentate ligands have low molecular rigidity, and the two bidentate ligands are easy to distort and vibrate, resulting in non-radiative attenuation, resulting in low phosphorescence quantum efficiency; and ring metals based on tridentate ligands.
  • the metal platinum (II) complex molecule needs a second coordination anion (such as alkyne anion, Cl-, carbene, etc.), which will also lead to a decrease in the chemical and thermal stability of the complex; the above reasons are not conducive to its use as a phosphorescent material Applications in OLED devices.
  • cyclometal platinum(II) complexes based on tetradentate ligands have strong molecular rigidity, high radiative luminescence rate, greatly improved quantum efficiency, and high chemical and thermal stability.
  • Ideal molecules for OLED phosphorescent materials The development of stable and efficient new phosphorescent materials is still of great significance to the development of the OLED industry.
  • the invention relates to the technical field of metal-organic light-emitting materials, in particular to a metal platinum (II) and palladium (II) complex containing a quinoline structural unit, and this type of complex can be used as a light-emitting material in an OLED device.
  • the embodiment of the present invention provides a metal platinum (II) and palladium (II) complex containing a quinoline structural unit
  • the metal platinum (II) and palladium (II) complex containing a quinoline structural unit II) complex has the structure shown in general formula (I):
  • M is selected from Pt or Pd
  • A is selected from O, S or NR 6 ;
  • X is selected from O, S, or NR 14 ;
  • Y 1 , Y 2 , Y 3 , Y 4 , Y 5 , Y 6 , Y 7 , Y 8 , Y 9 , Y 10 , Y 11 , Y 12 , Y 13 and Y 14 are each independently N or CH;
  • substitution patterns of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 and R 14 each independently represent is monosubstituted, disubstituted, trisubstituted, tetrasubstituted or unsubstituted;
  • R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 and R 14 each independently represent hydrogen, deuterium, alkyl, haloalkyl, cycloalkyl, alkoxy, aryl, heteroaryl, aryloxy, halogen, cycloalkenyl, heterocyclyl , alkenyl, alkynyl, hydroxyl, mercapto, nitro, cyano, amino, mono- or dialkylamino, mono
  • the metal platinum (II) and palladium (II) complexes containing quinoline structural units are characterized in that the platinum complexes have the general formula (II), (III), (IV) or ( V) The structure shown:
  • metal platinum (II) and palladium (II) complexes containing quinoline structural units are characterized in that the left side Preferably one of the structures shown below:
  • the metal platinum (II) and palladium (II) complexes containing quinoline structural units are characterized in that the platinum (II) and palladium (II) complexes have one of the following structures:
  • metal platinum (II) and palladium (II) complexes containing quinoline structural units are used as luminescent materials and can be used in electroluminescent devices. Furthermore, it can be used in full-color displays, light-emitting display devices or organic light-emitting diodes.
  • the device wherein is characterized in that it comprises at least one cathode, at least one anode and at least one light-emitting layer, and at least one layer in the light-emitting layer comprises the metal platinum (II) containing quinoline structural unit described in any one ) and palladium (II) complexes.
  • the beneficial effects of the present invention are: compared with bidentate ligand platinum complexes, the tetradentate ligand-based cyclometal platinum (II) complexes of the present application have strong molecular rigidity and can effectively suppress non-radiative transitions due to molecular vibrations , the quantum efficiency will be greatly improved, and the tetradentate ligands will help improve the chemical and thermal stability of the material molecules.
  • the invention adjusts the photophysical properties of the metal-platinum complex by changing the structure of the ligand surrounding the metal center and regulating the structure of the substituent on the ligand. It has broad application prospects in many fields such as OLED display and lighting.
  • Fig. 1 is the room temperature emission spectrum of the platinum complex Pt1 in the methylene chloride solution in the specific embodiment
  • Fig. 2 is the room temperature emission spectrum of the platinum complex Pt in the methylene chloride solution in the specific embodiment
  • Fig. 3 is the room temperature emission spectrum of the platinum complex Pt in the specific embodiment in methylene chloride solution
  • Fig. 4 is the room temperature emission spectrum of the platinum complex Pt42 in the methylene chloride solution in the specific embodiment
  • Figure 5 is the HOMO and LUMO orbital distribution and energy level comparison of Pt1, Pt2, Pt3 and Pt4 calculated by density functional theory (DFT);
  • DFT density functional theory
  • Figure 6 shows the HOMO and LUMO orbital distributions and energy level comparisons of Pt5, Pt6, Pt7 and Pt8 calculated by density functional theory (DFT);
  • DFT density functional theory
  • Figure 7 shows the HOMO and LUMO orbital distributions and energy level comparisons of Pt9, Pt10, Pt11 and Pt12 calculated by density functional theory (DFT);
  • DFT density functional theory
  • Figure 8 is the HOMO and LUMO orbital distribution and energy level comparison of Pt13, Pt14, Pt15 and Pt16 calculated by density functional theory (DFT);
  • DFT density functional theory
  • Figure 9 is the HOMO and LUMO orbital distribution and energy level comparison of Pt17, Pt18, Pt19 and Pt20 calculated by density functional theory (DFT);
  • DFT density functional theory
  • Figure 10 shows the HOMO and LUMO orbital distributions and energy level comparisons of Pt21, Pt22, Pt23 and Pt24 calculated by density functional theory (DFT).
  • DFT density functional theory
  • Figure 11 shows the HOMO and LUMO orbital distributions and energy level comparisons of Pt397, Pt398, Pt399 and Pd1 calculated by density functional theory (DFT).
  • DFT density functional theory
  • Figure 12 shows the HOMO and LUMO orbital distributions and energy level comparisons of Pd2, Pd3, Pd4 and Pd5 calculated by density functional theory (DFT).
  • DFT density functional theory
  • FIG. 13 is a schematic structural diagram of an organic light emitting element.
  • the term "optional” or “optionally” means that the subsequently described event or circumstance can or cannot occur, and that the description includes instances where said event or circumstance occurs and instances where it does not.
  • compositions described herein are disclosed. These and other materials are disclosed herein, and it is to be understood that while combinations, subsets, interactions, groups, etc. of these materials are disclosed, each individual and total combination and permutation of these compounds cannot be specifically disclosed. Where specific references are made, each is specifically contemplated and described herein. For example, if a particular compound is disclosed and discussed, and the many modifications that can be made to many molecules comprising that compound are discussed, then every and every combination and permutation of that compound is specifically contemplated and possible. or otherwise specifically stated to the contrary.
  • Linking atoms used in the present invention are capable of linking two groups, for example, N and C groups.
  • the linking atom can optionally (if the bond allows) have other attached chemical moieties.
  • the oxygen will not have any other chemical groups attached, because once bonded to two atoms (eg, N or C) the valence bond has been satisfied.
  • two additional chemical moieties can be attached to the carbon atom.
  • cyclic structure refers to any cyclic chemical structure including, but not limited to, aryl, heteroaryl, cycloalkyl, cycloalkenyl, heterocyclyl, carbene, and N-hetero Ring carbine.
  • substituted as used herein is intended to encompass all permissible substituents of organic compounds.
  • the permissible substituents include acyclic and cyclic, branched and unbranched, carbocyclic and heterocyclic, and aromatic and nonaromatic substituents of organic compounds.
  • Illustrative substituents include, for example, those described below.
  • the permissible substituents may be one or more, the same or different, for appropriate organic compounds.
  • a heteroatom eg nitrogen
  • R 1 ", “R 2 ", “R 3 “, and “R 4 " are used as general symbols in the present invention to represent various specific substituents. These symbols can be any substituents, not limited to those disclosed in the present invention, and when they are defined in one instance as certain substituents, they may be defined in other instances as some other substituents.
  • alkyl as used in the present invention is a branched or unbranched saturated hydrocarbon group of 1 to 24 carbon atoms, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl Base, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec-pentyl, neopentyl, hexyl, heptyl, semi-yl, nonyl, decyl, dodecyl, tetradecyl, Hexadecyl, eicosyl, tetracosyl, etc.
  • the alkyl group can be cyclic or acyclic.
  • the alkyl group can be branched or unbranched.
  • the alkyl group may also be substituted or unsubstituted.
  • the alkyl group may be substituted with one or more groups including, but not limited to, optionally substituted alkyl, cycloalkyl, alkoxy, amino, halogen, hydroxyl, nitro, silyl, as described herein. group, sulfur-oxo (Sulfo-oxo) or mercapto group.
  • a "lower alkyl” group is an alkyl group containing 1 to 6 (eg 1 to 4) carbon atoms.
  • alkyl is generally used to refer to both unsubstituted and substituted alkyl groups; however, substituted alkyl groups are also specifically referred to herein by identifying specific substituents on the alkyl group.
  • halogenated alkyl or “haloalkyl” specifically refers to an alkyl group substituted with one or more halogens (eg, fluorine, chlorine, bromine, or iodine).
  • alkoxyalkyl specifically refers to an alkyl group substituted with one or more alkoxy groups, as described below.
  • alkylamino specifically refers to an alkyl group substituted with one or more amino groups, as described below, etc.
  • cycloalkyl as used herein is a non-aromatic carbon-based ring composed of at least three carbon atoms.
  • examples of cycloalkyl include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclononyl, and the like.
  • heterocycloalkyl is a class of cycloalkyl groups as defined above and included within the meaning of the term “cycloalkyl” in which at least one ring carbon atom is replaced by a heteroatom such as, but not limited to, nitrogen, oxygen, sulfur or phosphorus replace.
  • the cycloalkyl and heterocycloalkyl groups can be substituted or unsubstituted.
  • the cycloalkyl and heterocycloalkyl groups may be substituted with one or more groups, including but not limited to alkyl, cycloalkyl, alkoxy, amino, halogen, hydroxyl, nitro, methyl Silyl, sulfo-oxo or mercapto.
  • polyolefin group is used in the present invention to refer to two or more CH 2 groups connected with other identical moieties.
  • a “polyolefin group” may be represented as -(CH 2 ) a -, where "a” is an integer from 2 to 500.
  • alkoxy and alkoxy group are used to refer to an alkyl or cycloalkyl group bonded through an ether linker; that is, “alkoxy” may be defined as -OR 1 , wherein R 1 is alkyl or cycloalkyl as defined above.
  • Alkoxy also includes polymers of the alkoxy just described; that is, the alkoxy can be a polyether such as -OR 1 -OR 2 or -OR 1 -(OR 2 ) a -OR 3 , where "a" is an integer from 1 to 200, and each of R 1 , R 2 and R 3 is independently an alkyl group, a cycloalkyl group, or a combination thereof.
  • alkenyl is a hydrocarbon group of 2 to 24 carbon atoms having a structure containing at least one carbon-carbon double bond.
  • the alkenyl can be substituted with one or more groups, including but not limited to the alkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, Heteroaryl, aldehyde, amino, carboxyl, ester, halogen, hydroxy, carbonyl, azido, nitro, silyl, sulfo-oxo or mercapto.
  • groups including but not limited to the alkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, Heteroaryl, aldehyde, amino, carboxyl, ester, halogen, hydroxy, carbonyl, azido, nitro, silyl, sulfo-oxo or mercapto.
  • Examples of cycloalkenyl groups include, but are not limited to, cyclopropenyl, cyclobutenyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl, cyclohexadienyl, norbornenyl, and the like.
  • heterocycloalkenyl is a class of cycloalkenyl groups as defined above and is included within the meaning of the term “cycloalkenyl” in which at least one carbon atom of the ring is replaced by a heteroatom such as but not limited to nitrogen, oxygen, sulfur , or phosphorus substitution. Cycloalkenyl and heterocycloalkenyl groups can be substituted or unsubstituted.
  • cycloalkenyl and heterocycloalkenyl groups may be substituted with one or more groups, including but not limited to alkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkynyl, cyclo Alkynyl, aryl, heteroaryl, aldehyde, amino, carboxy, ester, halogen, hydroxy, carbonyl, azido, nitro, silyl, sulfo-oxo or mercapto.
  • groups including but not limited to alkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkynyl, cyclo Alkynyl, aryl, heteroaryl, aldehyde, amino, carboxy, ester, halogen, hydroxy, carbonyl, azido, nitro, silyl, sulfo-oxo or mercapto.
  • alkynyl as used herein is a hydrocarbon group having 2 to 24 carbon atoms having a structural formula containing at least one carbon-carbon triple bond.
  • the alkynyl group may be unsubstituted or substituted with one or more groups including, but not limited to, the alkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkynyl groups described herein , cycloalkynyl, aryl, heteroaryl, aldehyde, amino, carboxyl, ester, halogen, hydroxyl, carbonyl, azido, nitro, silyl, sulfo-oxo or Mercapto.
  • cycloalkynyl as used herein is a non-aromatic carbon-based ring comprising at least seven carbon atoms and containing at least one carbon-carbon triple bond.
  • examples of cycloalkynyl include, but are not limited to, cycloheptynyl, cyclooctynyl, cyclononynyl, and the like.
  • heterocycloalkynyl is a type of cycloalkenyl as defined above and is included within the meaning of the term “cycloalkynyl” in which at least one of the carbon atoms of the ring is replaced by a heteroatom, so Such heteroatoms are for example, but not limited to, nitrogen, oxygen, sulfur or phosphorus. Cycloalkynyl and heterocycloalkynyl groups can be substituted or unsubstituted.
  • Cycloalkynyl and heterocycloalkynyl groups may be substituted with one or more groups including, but not limited to, the alkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkyne groups described herein Cycloalkynyl, aryl, heteroaryl, aldehyde, amino, carboxyl, ester, halogen, hydroxyl, carbonyl, azido, nitro, silyl, sulfo-oxo or mercapto.
  • aryl as used herein is a group containing any carbon-based aromatic group including, but not limited to, benzene, naphthalene, phenyl, biphenyl, phenoxybenzene Wait.
  • aryl also includes "heteroaryl”, which is defined as a group containing an aromatic group having at least one heteroatom introduced into the ring of the aromatic group. Examples of heteroatoms include, but are not limited to, nitrogen, oxygen, sulfur, and phosphorus.
  • non-heteroaryl (which is also encompassed by the term “aryl”) defines groups containing aromatic groups that do not contain heteroatoms. Aryl groups can be substituted or unsubstituted.
  • the aryl group may be substituted with one or more groups, which include but not limited to the alkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, Aryl, heteroaryl, aldehyde, amino, carboxyl, ester, halogen, hydroxy, carbonyl, azido, nitro, silyl, sulfo-oxo or mercapto.
  • biasryl is a specific type of aryl and is included within the definition of "aryl”. Biaryl refers to two aryl groups joined together by a fused ring structure, as in naphthalene, or two aryl groups linked by one or more carbon-carbon bonds, as in biphenyl.
  • amine or “amino” used in the present invention is represented by the formula -NR 1 R 2 , wherein R 1 and R 2 can be independently selected from hydrogen, alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, Cycloalkynyl, aryl or heteroaryl.
  • alkylamino as used herein is represented by the formula -NH(-alkyl), wherein alkyl is as described herein.
  • Representative examples include, but are not limited to, methylamino, ethylamino, propylamino, isopropylamino, butylamino, isobutylamino, (sec-butyl)amino, (tert-butyl)amino, pentylamino , Isopentylamino, (tert-amyl)amino, hexylamino, etc.
  • dialkylamino as used herein is represented by the formula -N(alkyl) 2 , wherein alkyl is as described herein.
  • Representative examples include, but are not limited to, dimethylamino, diethylamino, dipropylamino, diisopropylamino, dibutylamino, diisobutylamino, di(sec-butyl)amino, di(tert- Butyl)amino, dipentylamino, diisopentylamino, di(tert-amyl)amino, dihexylamino, N-ethyl-N-methylamino, N-methyl-N-propylamino, N-ethyl-N-propylamino and the like.
  • carboxylic acid as used herein is represented by the formula -C(O)OH.
  • esters used in the present invention is represented by the formula -OC(O)R 1 or -C(O)OR 1 , wherein R1 can be the alkyl, cycloalkyl, alkenyl, cycloalkenyl, cycloalkenyl, Alkynyl, cycloalkynyl, aryl or heteroaryl.
  • polyester as used herein is represented by the formula -(R 1 O(O)CR 2 -C(O)O) a - or -(R 1 O(O)CR 2 -OC(O)) a - , wherein R and R can be independently alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, or heteroaryl as described in the present invention and "a” is 1 Integer up to 500.
  • the term “polyester” is used to describe a group produced by the reaction between a compound having at least two carboxyl groups and a compound having at least two hydroxyl groups.
  • ether used in the present invention is represented by the formula R 1 OR 2 , wherein R 1 and R 2 can independently be the alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkyne described in the present invention radical, aryl or heteroaryl.
  • polyether used in the present invention is represented by the formula -(R 1 OR 2 O) a -, wherein R 1 and R 2 can independently be the alkyl, cycloalkyl, alkenyl, cycloalkene described in the present invention radical, alkynyl, cycloalkynyl, aryl, or heteroaryl and "a" is an integer from 1 to 500.
  • polyether groups include polyethylene oxide, polypropylene oxide and polybutylene oxide.
  • halogen refers to the halogens fluorine, chlorine, bromine and iodine.
  • heterocyclyl refers to monocyclic and polycyclic non-aromatic ring systems
  • heteroaryl refers to monocyclic and polycyclic aromatic ring systems: where At least one of the ring members is not carbon.
  • the term includes azetidinyl, dioxanyl, furyl, imidazolyl, isothiazolyl, isoxazolyl, morpholinyl, oxazolyl, including 1,2,3-oxadiazolyl, 1,2,5-oxadiazolyl and 1,3,4-oxadiazolyl oxazolyl, piperazinyl, piperidinyl, pyrazinyl, pyrazolyl, pyridazinyl, pyridyl, pyrimidine base, pyrrolyl, pyrrolidinyl, tetrahydrofuranyl, tetrahydropyranyl, tetrazinyl including 1,2,4,5-tetrazyl, including 1,2,3,4-tetrazolyl and 1, 2,4,5-tetrazolyl tetrazolyl, including 1,2,3-thiadiazolyl, 1,2,5-thiadiazolyl and 1,3,4-thiadiazolyl
  • hydroxyl as used herein is represented by the formula -OH.
  • ketone used in the present invention is represented by the formula R 1 C(O)R 2 , wherein R 1 and R 2 can be independently the alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkyne described in the present invention radical, cycloalkynyl, aryl, or heteroaryl.
  • nitro as used herein is represented by the formula -NO 2 .
  • nitrile as used herein is represented by the formula -CN.
  • silica group used in the present invention is represented by the formula—SiR 1 R 2 R 3 , wherein R 1 , R 2 and R 3 can be independently hydrogen or the alkyl, cycloalkyl, alkoxy groups described in the present invention radical, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, or heteroaryl.
  • thio-oxo group used in the present invention is represented by the formula -S(O)R 1 , -S(O) 2 R 1 , -OS(O) 2 R 1 or -OS(O) 2 OR 1 , wherein R can be hydrogen or the alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, or heteroaryl described in the present invention.
  • R can be hydrogen or the alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, or heteroaryl described in the present invention.
  • sulfonyl refers to a sulfur - oxo group represented by the formula -S(O) 2R1 , where R1 can be alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkyne radical, cycloalkynyl, aryl or heteroaryl.
  • sulfone used in the present invention is represented by the formula R 1 S(O) 2 R 2 , wherein R 1 and R 2 can be independently alkyl, cycloalkyl, alkenyl, cycloalkenyl, Alkynyl, cycloalkynyl, aryl or heteroaryl.
  • sulfoxide used in the present invention is represented by the formula R 1 S(O)R 2 , wherein R 1 and R 2 can be independently the alkyl, cycloalkyl, alkenyl, cycloalkenyl, cycloalkenyl, Alkynyl, cycloalkynyl, aryl or heteroaryl.
  • R 1 ", “R 2 ", “R 3 “, and “R n” may independently have one or more of the groups listed above.
  • R1 is a straight chain alkyl
  • one hydrogen atom of the alkyl can be optionally substituted with hydroxy, alkoxy, alkyl, halo, and the like.
  • the first group may be incorporated within the second group, or alternatively, the first group may be pendant, ie attached, to the second group.
  • an alkyl group comprising an amino group the amino group may be incorporated within the backbone of the alkyl group.
  • the amino group may be attached to the backbone of the alkyl group. The nature of the group selected will determine whether the first group is embedded or linked to the second group.
  • the compounds described herein may contain "optionally substituted” moieties.
  • substituted (whether or not preceded by the term “optionally) means that one or more hydrogens of the indicated moiety are replaced by a suitable substituent.
  • an "optionally substituted” group may have suitable substituents at each substitutable position of the group, and when more than one position in any given structure may be substituted with more than one selected from the specified When substituting a group, the substituents at each position may be the same or different.
  • Combinations of substituents contemplated by this invention are preferably those that result in stable or chemically feasible compounds.
  • each substituent may be further optionally substituted (ie, further substituted or unsubstituted), unless clearly indicated to the contrary.
  • n is usually an integer. That is, R n is understood to represent five individual substituents R a(1 ) , R a(2) , R a(3) , R a(4) , R a(5) . "Individual substituents" means that each R substituent can be defined independently. For example, if in one instance R a(m) is halo, then in that instance R a(n) need not be halo.
  • R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , etc. are mentioned several times in the chemical structures and moieties disclosed and described herein. Any description of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , etc. in the specification applies to any structure or section, unless otherwise noted.
  • organic optoelectronic devices using organic materials are becoming more and more urgent for several reasons. Many of the materials used to make such devices are relatively inexpensive, so organic optoelectronic devices have the potential for cost advantages over inorganic devices. Furthermore, the intrinsic properties of organic materials, such as their flexibility, can make them well suited for specialized applications such as fabrication on flexible substrates. Examples of organic optoelectronic devices include organic light emitting devices (OLEDs), organic phototransistors, organic photovoltaic cells, and organic photodetectors. For OLEDs, organic materials may have performance advantages over conventional materials. For example, the wavelength at which an organic light-emitting layer emits light can generally be tuned with appropriate dopants.
  • the excitons decay from the singlet excited state to the ground state to produce immediate luminescence, which is fluorescence. If the excitons decay from the triplet excited state to the ground state to produce light emission, this is phosphorescence.
  • Phosphorescent metal complexes such as platinum complexes, have shown their ability to utilize singlet and triplet excitons potential to achieve 100% internal quantum efficiency. Therefore, phosphorescent metal complexes are good choices of dopants in the emissive layer of organic light-emitting devices (OLEDs), and have gained great attention in both academic and industrial fields. Over the past decade, many results have been achieved leading to the profitable commercialization of the technology, for example, OLEDs have been used in advanced displays for smartphones, televisions and digital cameras.
  • the metal complexes of the invention can be tailored or tuned to specific applications where specific emission or absorption properties are desired.
  • the optical properties of the metal complexes disclosed in this invention can be adjusted by changing the structure of the ligand surrounding the metal center or changing the structure of the fluorescent emitter on the ligand.
  • metal complexes with ligands having electron-donating or electron-withdrawing substituents can often exhibit different optical properties in emission and absorption spectra.
  • the color of the metal complex can be adjusted by modifying the conjugated groups on the fluorescent emitter and the ligand.
  • the emission of the complexes according to the invention can be tuned eg by changing the ligand or fluorescent emitter structure, for example from ultraviolet to near infrared.
  • a fluorescent emitter is a group of atoms in an organic molecule that can absorb energy to produce a singlet excited state, which rapidly decays to produce instant luminescence.
  • the complexes of the invention provide emission over most of the visible spectrum.
  • the complex of the present invention can emit light in the wavelength range of visible light or near-infrared light.
  • the complexes of the present invention have improved stability and efficiency relative to conventional emissive complexes.
  • the complexes of the invention can be used as luminescent labels for example for biological applications, anticancer agents, emitters in organic light emitting diodes (OLEDs) or combinations thereof.
  • the complexes of the invention are useful in light emitting devices such as compact fluorescent lamps (CFLs), light emitting diodes (LEDs), incandescent lamps, and combinations thereof.
  • the compounds disclosed herein can exhibit desirable properties and have emission and/or absorption spectra that can be tuned by selection of appropriate ligands.
  • the invention may exclude any one or more compounds, structures or portions thereof specifically recited herein.
  • the compounds disclosed herein are suitable for use in a wide variety of optical and electro-optic devices, including but not limited to light absorbing devices such as solar and photosensitive devices, organic light emitting diodes (OLEDs), light emitting devices or devices capable of compatible light absorption and emission and Used as markers for biological applications.
  • light absorbing devices such as solar and photosensitive devices, organic light emitting diodes (OLEDs), light emitting devices or devices capable of compatible light absorption and emission and Used as markers for biological applications.
  • OLEDs organic light emitting diodes
  • the disclosed compounds are platinum complexes. Also, the compounds disclosed herein can be used as host materials for OLED applications, such as full-color displays.
  • the compounds disclosed herein are useful in a variety of applications.
  • the compound can be used in organic light-emitting diodes (OLEDs), light-emitting devices and displays, and other light-emitting devices.
  • OLEDs organic light-emitting diodes
  • the compounds of the present invention are used in light-emitting devices (such as OLEDs), which can improve the luminous efficiency and the operating time of the devices.
  • the compounds disclosed herein may be delayed fluorescent and/or phosphorescent emitters. In one aspect, the compounds disclosed herein can be delayed fluorescence emitters. In one aspect, the compounds disclosed herein can be phosphorescent emitters. In another aspect, the compounds disclosed herein can be delayed fluorescence emitters and phosphorescence emitters.
  • the compounds disclosed in the embodiments of the present invention are suitable for use in a wide variety of optical and electro-optic devices, including but not limited to solar and light-sensitive devices such as light-absorbing devices, organic light-emitting diodes (OLEDs), light-emitting devices or existing light-absorbing Devices with light emitting capabilities and as markers for biological applications.
  • solar and light-sensitive devices such as light-absorbing devices, organic light-emitting diodes (OLEDs), light-emitting devices or existing light-absorbing Devices with light emitting capabilities and as markers for biological applications.
  • the compounds provided by the embodiments of the present invention can be used in a light-emitting device such as an OLED.
  • the device includes at least one cathode, at least one anode and at least one light-emitting layer, and at least one of the light-emitting layers includes the above-mentioned Phenylcarbazole-based tetradentate ring metal platinum complexes.
  • the light-emitting device may include an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode formed by sequential deposition.
  • the hole transport layer, light-emitting layer and electron transport layer are all organic layers, and the anode and cathode are electrically connected.
  • Embodiment 1 Platinum complex Pt1 can be synthesized according to the following route:
  • reaction mixture was quenched with sodium thiosulfate, diluted with water, extracted 4-5 times with dichloromethane, and the solvent was distilled off under reduced pressure to obtain 4.15 g of crude black-red solid. Yield 69%. used directly in the next step.
  • Embodiment 2 Platinum complex Pt2 can be synthesized according to the following route:
  • Embodiment 3 Platinum complex Pt3 can be synthesized according to the following route:
  • Embodiment 4 Platinum complex Pt42 can be synthesized according to the following route:
  • the platinum complexes Pt1, Pt2, Pt3 and Pt42 can emit light strongly in methylene chloride solution, and their maximum emission wavelengths are 549nm, 547nm, 534nm and 608nm respectively, and their solution quantum efficiencies are all greater than 40 %.
  • the solution quantum efficiency of the contrast platinum complex PtQ2 based on the bidentate ligand is only about 1.5% (I.Taydakov, K.Lyssenko, R.Saifutyarov, A.Akkuzina, R.Avetisov, A.Mozhevitina, I. Avetissov. Dyes and Pigments, 2016, 135, 80-85). It can be seen that the quantum efficiency of the platinum complex based on the tetradentate ligand of the present application can be greatly improved compared with the platinum complex of the bidentate ligand.
  • Table 1 is the energy level table of the frontier orbital distribution of some platinum complexes obtained in the experimental part of theoretical calculation.
  • Pt2 introduces a methyl group on pyridine, which has little effect on the highest occupied molecular orbital (LUMO) and the lowest unoccupied molecular orbital (HOMO), the change in ⁇ E is small, and the maximum emission wavelength is close. But can increase molecular stability.
  • the introduction of p-tert-butylphenyl in the quinoline part of Pt3 will make the HOMO distribution significantly delocalized, and has little effect on the distribution of LUMO.
  • the ⁇ E decreases, but the spectrum blue shifts, which may be due to the triplet energy The level increases, resulting in a blue shift of the emission spectrum of the molecule.
  • Pt8 connects the acridinyl group and the quinoline group through the phenyl group, so that the HOMO is mainly distributed in the quinoline part, and the LUMO is delocalized to the phenyl quinoline part, which reduces the ⁇ E and is expected to red-shift the emission spectrum.
  • Pt13 increases the LUMO and HOMO energy levels without changing the energy band, and can match more suitable host materials in the device.
  • Pt2 due to the introduction of phenyl group, the conjugated system of Pt14 is enlarged, making its HOMO delocalized, and the ⁇ E changes little.
  • Pt3 introduces a phenyl group in the quinoline part and a tert-butyl group in the pyridine part. It can be observed that in addition to the conjugation delocalization effect of the phenyl group on the HOMO, the influence on the HOMO and HOMO distribution is relatively small.
  • the introduction of a tert-butyl group into the pyridine ring can effectively increase its steric hindrance, and has little effect on the electron cloud distribution density, which can improve its exciton utilization efficiency.
  • the introduction of a conjugated system in the quinoline region can enhance the molecular rigidity and have little effect on the electron cloud distribution.
  • Pt16 introduces a tert-butyl group in the quinoline part and pyridine part respectively.
  • the tert-butyl group on the pyridine ring has little effect on the electron cloud distribution density, and increases the steric hindrance, which is beneficial to improve the exciton utilization efficiency.
  • the tert-butyl group on the side of the quinoline has little effect on its distribution, so the spectral properties do not change much, and the structure of two tert-butyl groups is more conducive to improving the utilization efficiency of excitons.
  • Pt20 Compared with Pt16, Pt20 introduces a strong electron-donating group of diphenylamine, which greatly increases the HOMO energy level and reduces ⁇ E, which can greatly red-shift its emission spectrum, so it can play a significant role in adjusting the luminous color.
  • Pt21, Pt22, Pt23, and Pt24 are compared with Pt1, and the electron cloud distribution density of Pt1 shows that its HOMO is mainly distributed in the quinoline conjugated system near the metal Pt atom, while the LUMO is mainly distributed in the pyridine ring.
  • the bridge position of the six-membered ring has little effect on HOMO and LUMO, so Pt21-Pt24 has little effect on the regulation of molecular electron cloud distribution compared with Pt1.
  • the introduction of a strong electron-withdrawing structure at the oxygen para position in the quinoline ring can significantly reduce its LUMO energy level.
  • Introducing a strong electron-withdrawing structure into the pyridine ring can reduce its LUMO energy level.
  • the introduction of p-tert-butylphenyl or trimethylphenyl to the para-position of oxygen in the quinoline ring can inhibit the ⁇ - ⁇ stacking of molecules with little effect on HOMO and LUMO, which is beneficial to the purification of material molecules.
  • Appropriately increasing the conjugated structure in the quinoline ring can enhance its molecular rigidity and extend the conjugated system, and the guest team can adjust its photophysical properties.
  • the application of the metal platinum (II) and palladium (II) complex luminescent material containing the quinoline structural unit in the luminescent layer of an organic electroluminescence device In an organic light-emitting element, carriers are injected into the light-emitting material from the positive and negative electrodes to generate the light-emitting material in an excited state and make it emit light.
  • the compound of the present invention represented by the general formula (1) can be used as a light-emitting material in an organic light-emitting element such as an organic photoluminescence element or an organic electroluminescence element.
  • An organic photoluminescent element has a structure in which at least a light emitting layer is formed on a substrate.
  • the organic electroluminescent element has a structure in which at least an anode, a cathode, and an organic layer between the anode and the cathode are formed.
  • the organic layer includes at least a light-emitting layer, and may consist of only the light-emitting layer, or may have one or more organic layers in addition to the light-emitting layer. Examples of such other organic layers include a hole transport layer, a hole injection layer, an electron blocking layer, a hole blocking layer, an electron injection layer, an electron transport layer, an exciton blocking layer, and the like.
  • the hole transport layer may also be a hole injection transport layer having a hole injection function
  • the electron transport layer may also be an electron injection transport layer having an electron injection function.
  • FIG. 10 A schematic structural diagram of a specific organic light-emitting element is shown in FIG. 10 .
  • FIG. 10 there are 7 layers from bottom to top, sequentially representing the substrate, anode, hole injection layer, hole transport layer, light-emitting layer, electron transport layer and cathode, where the light-emitting layer is a guest material doped into a host material mixed layer.
  • ITO is a transparent anode
  • HATCN is a hole injection layer
  • NPD is a hole transport layer
  • mCBP is a host material
  • the complexes represented in Examples 1-3 (5-20wt.% is a doping concentration, and 20nm is Thickness of the light-emitting layer) is the guest material
  • BAlq is the hole blocking layer
  • BPyTP is the electron transport layer
  • LiF is the electron injection layer
  • Al is the cathode.
  • the numbers in nanometers (nm) in parentheses are the thicknesses of the films.
  • the structure is an example of an application of the luminescent material of the present invention, and does not constitute a limitation of the specific OLED device structure of the luminescent material shown in the present invention, and the luminescent material is not limited to the compounds represented in Examples 1-3. .
  • the molecular formula of the applied material in the device is as follows:
  • OLED devices such as external quantum efficiency (EQE), operating voltage, and lifetime are shown in Table 1 below.
  • EQE external quantum efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本发明涉及有机发光材料技术领域，提供了一种含有喹啉结构单元的金属铂(II)和钯(II)配合物发光材料，同时如下所示。与双齿配体铂配合物相比，本发明所提供的基于四齿配体的环金属铂(II)和钯(II)配合物分子刚性强，可有效抑制由于分子振动而产生的非辐射跃迁，量子效率会大大提高，在OLED显示和照明等诸多领域具有广阔的应用前景。

Description

一种含有喹啉结构单元的四齿环金属铂(II)和钯(II)配合物发光材料及其应用 【技术领域】
本发明涉及金属有机发光材料技术领域，具体涉及一种含有喹啉结构单元的四齿环金属铂(II)和钯(II)配合物发光材料及其应用。
【背景技术】
有机发光二极管(Organic Light-Emitting Diode,OLED)是新一代的全彩显示和照明技术。OLED是一种自主发光器件，无需背光源，节能；且其驱动电压低、响应速度快、分辨率和对比度高、视角广、使用温度范围广；亦能够以廉价的玻璃为基板，若以柔性的塑料为基板可以制备柔性显示器件；此外，还具有成本低、生产工艺简单、可进行大面积生产等优点。因此，OLED在高端电子产品、航空航天方面有着广泛而巨大的应用前景；并且在平面固态照明领域亦有巨大的潜在市场。
发光材料的设计和开发是OLED领域的核心。早期OLED器件中其发光材料主要为有机小分子荧光材料。然而自旋统计量子学表明，在电致发光的情况下，单线态激和三线态激子(exciton)比例为1:3，因为传统荧光材料只能利用处于单线态激发态的激子，因此其理论内部量子效率仅为25％。美国普林斯顿大学的Forrest教授和南加州大学的Thompson教授于1998年发现了室温下重金属有机配合物分子的磷光电致发光现象。由于重金属原子的强自旋轨道耦，此类配合物可以有效促进激子由单线态到三线态的系间蹿越(ISC)，从而OLED器件可以充分利用电激发所产生所有单线态和三线态激子，使发光材料的理论内部量子效率可达到100％(Nature,1998,395,151)。至此使OLED发光材料的开发进入了新的时期。
目前能够满足商业化应用的重金属磷光有机配合物分子基本均为环金属铱(III)配合物分子，且数量有限。地壳中金属铂元素的含量和世界范围内的年产均为金属铱元素的约十倍，用于制备铱(III)配合物磷光材料的IrCl 3·H 2O(1100人民币/克)价格也要远高于制备铂(II)配合物磷光材料的PtCl 2(210人民币/克)；此外，制备铱(III)配合物磷光材料时涉及含铱(III)二聚体、铱(III)中间体配体交换、 mer-铱(III)配合物的合成和mer-到fac-铱(III)配合物异构体转换四步反应，使总收率大为降低，大大降低了原料IrCl 3·H 2O的利用率，提高了铱(III)配合物磷光材料的制备成本。相比之下，铂(II)配合物磷光材料的制备只有最后一步配体的金属化设计铂盐的反应，铂元素利用率高，可进一步降低铂(II)配合物磷光材料的制备成本。综上所述，铂(II)配合物磷光材料的制备成本要远低于铱(III)配合物磷光材料。
基于双齿配体的环金属铂(II)配合物分子刚性较低，两个双齿配体易扭曲、振动而导致非辐射衰减，使其磷光量子效率低下；而基于三齿配体的环金属铂(II)配合物分子需要第二个配阴离子(如炔负离子、Cl-、卡宾等)，亦会导致配合物的化学稳定性和热稳定性降低；上述原因均不利于其作为磷光材料在OLED器件中的应用。相比之下，基于四齿配体的环金属铂(II)配合物分子刚性强、辐射发光速率大、量子效率会大大提高，同时具有较高的化学稳定性和热稳定性，是发展新型OLED磷光材料的理想分子。而开发稳定而高效的新型磷光发光材料，对OLED产业的发展依然具有举足轻重的意义。
【发明内容】
本发明涉及金属有机发光材料技术领域，具体涉及一种含有喹啉结构单元的的金属铂(II)和钯(II)配合物，该类型配合物可用作OLED器件中发光材料。
第一方面，本发明的实施方式提供了一种含有喹啉结构单元的的金属铂(II)和钯(II)配合物，所述含有含有喹啉结构单元的金属铂(II)和钯(II)配合物具有通式(I)所示的结构：
Figure PCTCN2022099676-appb-000001
其中：
M选自Pt或Pd；
A选自O,S或NR 6；
X可以为O,S,CH 2,CHD,CD 2,CR 7R 8,C＝O,SiR 9R 10,NH,ND,NR 11,PH,PD,PR 12,R 13P＝O,S＝O,或SO 2；
X选自O,S,或NR 14；
Y 1,Y 2,Y 3,Y 4,Y 5,Y 6,Y 7,Y 8,Y 9,Y 10,Y 11,Y 12,Y 13和Y 14各自独立地为N或CH；
所述R 1、R 2、R 3、R 4、R 5、R 6、R 7、R 8、R 9、R 10、R 11、R 12、R 13和R 14的取代方式各自独立地表示为单取代、双取代、三取代、四取代或者无取代；R 1、R 2、R 3、R 4、R 5、R 6、R 7、R 8、R 9、R 10、R 11、R 12、R 13和R 14各自独立地表示为氢、氘、烷基、卤代烷基、环烷基、烷氧基、芳基、杂芳基、芳氧基、卤素、环烯基、杂环基、烯基、炔基、羟基、巯基、硝基、氰基、氨基、单或二烷基氨基、单或二芳基氨基、酯基、腈基、异腈基、杂芳基、烷氧基羰基、酰氨基、烷氧基羰基氨基、芳氧基羰基氨基、磺酰基氨基、氨磺酰基、氨基甲酰基、烷硫基、亚磺酰基、脲基、磷酰胺基、亚胺基、磺基、羧基、肼基、甲硅烷基、取代的甲硅烷基、聚合的基团、或其组合，且两个或者多个邻近的R 1、R 2、R 3、R 4、R 5、R 6、R 7、R 8、R 9、R 10、R 11、R 12、R 13和R 14可以选择性链接形成稠环。
进一步，所述的含有喹啉结构单元的的金属铂(II)和钯(II)配合物，其特征在于，所述铂配合物具有通式(II)、(III)、(IV)或(V)所示的结构：
Figure PCTCN2022099676-appb-000002
进一步，所述的含有喹啉结构单元的的金属铂(II)和钯(II)配合物，其特征在于，左侧的
Figure PCTCN2022099676-appb-000003
优选自以下所示结构中的一种：
Figure PCTCN2022099676-appb-000004
进一步，所述的含有喹啉结构单元的的金属铂(II)和钯(II)配合物，其特征在于，所述铂(II)和钯(II)配合物具有如下之一的结构：
Figure PCTCN2022099676-appb-000005
Figure PCTCN2022099676-appb-000006
Figure PCTCN2022099676-appb-000007
Figure PCTCN2022099676-appb-000008
Figure PCTCN2022099676-appb-000009
Figure PCTCN2022099676-appb-000010
Figure PCTCN2022099676-appb-000011
Figure PCTCN2022099676-appb-000012
Figure PCTCN2022099676-appb-000013
Figure PCTCN2022099676-appb-000014
Figure PCTCN2022099676-appb-000015
Figure PCTCN2022099676-appb-000016
Figure PCTCN2022099676-appb-000017
Figure PCTCN2022099676-appb-000018
本发明中，含有喹啉结构单元的金属铂(II)和钯(II)配合物用做发光材料，可用于电致发光器件。更进一步，可用于全彩显示器、发光显示器件或有机发光二极管。其中的器件，其特征在于，包括至少一个阴极、至少一个阳极和至少一层发光层，所述发光层中的至少一层包括任一项所述的含有喹啉结构单元的的金属铂(II)和钯(II)配合物。
本发明的有益效果在于：与双齿配体铂配合物相比，本申请基于四齿配体的环金属铂(II)配合物分子刚性强，可有效抑制由于分子振动而产生的非辐射跃迁，量子效率会大大提高，同时四齿配体利于提高材料分子的化学稳定性和热稳定性。本发明通过改变围绕金属中心的配体结构以及调控配体上的取代基结构来调节金属铂配合物的光物理学性质。在OLED显示和照明等诸多领域具有广阔的应用前景。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为具体实施方式中的铂配合物Pt1在二氯甲烷溶液中的室温发射光谱；
图2为具体实施方式中的铂配合物Pt2在二氯甲烷溶液中的室温发射光谱；
图3为具体实施方式中的铂配合物Pt3在二氯甲烷溶液中的室温发射光谱；
图4为具体实施方式中的铂配合物Pt42在二氯甲烷溶液中的室温发射光谱；
图5为通过密度泛函理论(DFT)计算得到的Pt1、Pt2、Pt3和Pt4的HOMO及LUMO轨道分布及其能级比较；
图6为通过密度泛函理论(DFT)计算得到的Pt5、Pt6、Pt7和Pt8的HOMO及LUMO轨道分布及其能级比较；
图7为通过密度泛函理论(DFT)计算得到的Pt9、Pt10、Pt11和Pt12的HOMO及LUMO轨道分布及其能级比较；
图8为通过密度泛函理论(DFT)计算得到的Pt13、Pt14、Pt15和Pt16的HOMO及LUMO轨道分布及其能级比较；
图9为通过密度泛函理论(DFT)计算得到的Pt17、Pt18、Pt19和Pt20的HOMO及LUMO轨道分布及其能级比较；
图10为通过密度泛函理论(DFT)计算得到的Pt21、Pt22、Pt23和Pt24的HOMO及LUMO轨道分布及其能级比较。
图11为通过密度泛函理论(DFT)计算得到的Pt397、Pt398、Pt399和Pd1的HOMO及LUMO轨道分布及其能级比较。
图12为通过密度泛函理论(DFT)计算得到的Pd2、Pd3、Pd4和Pd5的HOMO及LUMO轨道分布及其能级比较。
图13为有机发光元件的结构示意图。
需要指出的是，上面的一般说明和下面的详细说明都只是示范性和解释性的，不具有限定性。
【具体实施方式】
可通过参考以下具体实施方式和其中包含的实施例而更容易地理解本公开。
在披露和描述本发明的化合物、器件和/或方法之前，应该理解他们不限于具体的合成方法(否则会另外指出)，或者具体的试剂(否则会另外指出)，因为这当然是能够变化的。也应该理解本发明中使用的术语仅是用于描述具体方面的目的，而不意图是限制。虽然与本发明描述的那些类似或者等价的任何方法和材料都可用于该实践或者试验，下面描述示例性的方法和材料。
本发明所使用的术语“可选的”或“可选地”意味着随后描述的事件或情况可以或不发生，并且该描述包括所述事件或情况发生的情况及它不发生的情况。
披露了可用于制备本发明所述的组合物的组分，以及要用于本发明中披露的方法中的组合物本身。这些和其它物质披露于本发明中，并且应该理解当披露了这些物质的组合、子集、相互作用、组、等，而不能具体地披露这些化合物的每个各种单独和总的组合和置换的具体参参考时，每个都具体地在本发明中预期和描述了。例如，如果披露和讨论了具体的化合物，和讨论了能够对许多包含该化合物的分子进行的许多改性，那么具体地预期该化合物的各种和每种组合和置换，并且可能进行所述改性，否则会另外具体地相反地指出。因此，如果披露了一类分子A、B和C以及一类分子D、E和F，和组合分子A-D的实例，那么即使每个没有单独地记载，也考虑披露了每个单独地和总地预期的含义组合，A-E、A-F、 B-D、B-E、B-F、C-D、C-E和C-F。同样地，也披露了任何子集或者这些的组合。因此，例如，应该考虑披露了小组A-E、B-F和C-E。这些观念适用于本发明的所有方面，包括但不限于制备和使用该组合物的方法的步骤中。因此，如果存在各种另外的步骤能够进行，应该理解，这些另外的步骤各自能够以该方法的具体实施方式或者实施方式的组合进行。
本发明使用的连接原子能够连接两个基团，例如，N和C基团。该连接原子能够任选地(如果价键允许)具有其他附接的化学部分。例如，在一方面，氧不会具有任何其它的化学基团附接，因为一旦键合至两个原子(例如，N或C)价键已经被满足。相反，当碳是连接原子时，两个另外的化学部分能够附接至该碳原子。合适的化学部分包括但不限于氢、羟基、烷基、烷氧基、＝O、卤素、硝基、胺、酰胺、巯基、芳基、杂芳基、环烷基和杂环基。
本发明使用的术语“环状结构”或类似术语是指任何环状化学结构，其包括但不限于芳基、杂芳基、环烷基、环烯基、杂环基、卡宾和N-杂环卡宾。
本发明使用的术语“取代的”预期包含有机化合物的所有允许的取代基。在宽的方面，允许的取代基包括有机化合物的非环和环状、支化的和非支化的、碳环的和杂环的，和芳族和非芳族取代基。说明性的取代基包括，例如，以下描述的那些。对于合适的有机化合物来说，允许的取代基可为一个或多个，相同或者不同。对于本发明的目的而言，杂原子(例如氮)能够具有氢取代基和/或本发明所述的有机化合物的任何允许的取代基，其满足该杂原子的价键。本公开不意图以任何方式用有机化合物允许的取代基来进行任何限制。同样，术语“取代”或“取代有”包含隐含条件是这种取代符合取代的原子和该取代基的允许的价键，和该取代导致稳定的化合物(例如，不会自发地进行转化(例如通过重排、环化、消去等)的化合物)。也预期，在某些方面，除非明确地相反地指出，否则，单独的取代基能够进一步任选地是取代的(即，进一步是取代或未取代的)。
在定义各种术语时，“R 1”、“R 2”、“R 3”和“R 4”在本发明中用作总的符号来表示各种具体的取代基。这些符号能够是任何取代基，不限于本发明披露的那些，和当将他们在一种情况下限定为某些取代基时，他们在其它情况下可限定为一些其它的取代基。
本发明使用的术语“烷基”是支化的或未支化的1至24个碳原子的饱和的烃 基，例如甲基、乙基、正丙基、异丙基、正丁基、异丁基、仲丁基、叔丁基、正戊基、异戊基、仲戊基、新戊基、己基、庚基、半基、壬基、癸基、十二烷基、十四烷基、十六烷基、二十烷基、二十四烷基等。该烷基可为环状或非环的。该烷基可为支化或者非支化的。该烷基也可为取代或未取代的。例如，该烷基可取代有一个或多个基团，包括但不限于本发明所述的任选取代的烷基、环烷基、烷氧基、氨基、卤素、羟基、硝基、甲硅烷基、硫-氧代(Sulfo-oxo)或巯基。“低级烷基”基团是含有1至6个(例如1至4个)碳原子的烷基。
在整个说明书中，“烷基”通常用于同时指代未取代烷基和取代烷基；但是，取代烷基也在本发明中通过确定烷基上的具体的取代基来具体地提及。例如，术语“卤化的烷基”或者“卤代烷基”具体地是指取代有一个或多个卤素(例如，氟、氯、溴或碘的)烷基。术语“烷氧基烷基”具体地是指取代有一个或多个烷氧基的烷基，如下所述。术语“烷基氨基”具体地是指取代有一个或多个氨基的烷基，如下所述，等。当在一种情况中使用“烷基”而在另一情况中使用具体的术语如“烷基醇”时，不意味着暗示该术语“烷基”不同时指代具体的术语如“烷基醇”等。
本实践也用于本发明所述的其它组。也即，当术语如“环烷基”同时指代未取代的和取代的环烷基部分时，该取代的部分可另外具体地在本发明中确定；例如，具体取代的环烷基可称为例如“烷基环烷基”。类似的，取代的烷氧基可具体地称为例如“卤化的烷氧基”，具体的取代烯基可为例如“烯醇”等。同样地，使用总的术语如“环烷基”和具体的术语如“烷基环烷基”的实践不意图暗示该总术语不同时包含该具体术语。
本发明使用的术语“环烷基”是由至少三个碳原子构成的非芳族基于碳的环。环烷基的实例包括但不限于环丙基、环丁基、环戊基、环己基、环壬基等。术语“杂环烷基”是一类如上定义的环烷基，并且包含在术语“环烷基”的含义中，其中至少一个环碳原子被杂原子例如但不限于氮、氧、硫或磷取代。该环烷基和杂环烷基可为取代或未取代的。该环烷基和杂环烷基可取代有一个或多个基团，包括但不限于如本发明所述的烷基、环烷基、烷氧基、氨基、卤素、羟基、硝基、甲硅烷基、硫-氧代(sulfo-oxo)或巯基。
术语“聚烯烃基团”其用在本发明中用来指代含有两个或更多的CH 2基团且连接着其他相同部分。“聚烯烃基团”可以表示为-(CH 2) a-，其中“a”是整数2至 500。
术语“烷氧基”和“烷氧基基团”，其用在本发明中用来指代通过醚连接基键合的烷基或环烷基；也即，“烷氧基”可定义为-OR 1，其中R 1是如上定义的烷基或环烷基。“烷氧基”也包含刚刚描述的烷氧基的聚合物；也即，烷氧基可为聚醚如-OR 1-OR 2或者-OR 1-(OR 2) a-OR 3，其中“a”是整数1至200，而R 1、R 2和R 3各自独立地为烷基、环烷基或其组合。
本发明使用的术语“烯基”是2至24个碳原子的烃基，其结构式含有至少一个碳-碳双键。不对称结构例如(R 1R 2)C＝C(R 3R 4)意图包含E和Z异构体。这可推定在本发明的结构式中，其中存在不对称烯烃，或者它可通过键符号C＝C明确表示。该烯基可取代有一个或多个基团，包括但不限于本发明所述的烷基、环烷基、烷氧基、烯基、环烯基、炔基、环炔基、芳基、杂芳基、醛基、氨基、羧基、酯基、卤素、羟基、羰基、叠氮基、硝基、甲硅烷基、硫基-氧代(sulfo-oxo)或巯基。
本发明使用的术语“环烯基”是非芳族的基于碳的环，其由至少3个碳原子构成，并且含有至少一个碳碳双键，即，C＝C。环烯基的实例包括但不限于环丙烯基，环丁烯基，环戊烯基，环戊二烯基，环己烯基，环己二烯基，降冰片烯基(norbornenyl)，等。术语“杂环烯基”是一类如上定义的环烯基，并且包含在术语“环烯基”的含义中，其中该环的至少一个碳原子用杂原子例如但不限于氮、氧、硫、或磷取代。环烯基和杂环烯基可为取代或未取代的。该环烯基和杂环烯基可取代有一个或多个基团，包括但不限于本发明所述的烷基、环烷基、烷氧基、烯基、环烯基、炔基、环炔基、芳基、杂芳基、醛基、氨基、羧基、酯基、卤素、羟基、羰基、叠氮基、硝基、甲硅烷基、硫基-氧代(sulfo-oxo)或巯基。
本发明使用的术语“炔基”是具有2至24个碳原子的烃基，其具有含有至少一个碳-碳三键的结构式。炔基可为未取代的或者取代有一个或者多个基团，所述基团包括但不限于本发明所述的烷基、环烷基、烷氧基、烯基、环烯基、炔基、环炔基、芳基、杂芳基、醛基、氨基、羧基、酯基、卤素、羟基、羰基、叠氮基、硝基、甲硅烷基、硫基-氧代(sulfo-oxo)或巯基。
本发明使用的术语“环炔基”是非芳族的基于碳的环，其包含至少七个碳原子并含有至少一个碳-碳三键。环炔基的实例包括但不限于环庚炔基、环辛炔基、 环壬炔基等。术语“杂环炔基”是一种类型的如上所定义的环烯基，并且包含在术语“环炔基”的含义内，其中所述环的碳原子中的至少一个被杂原子替代，所述杂原子例如但不限于氮、氧、硫或者磷。环炔基和杂环炔基可为取代或未取代的。环炔基和杂环炔基可取代有一个或者多个基团，所述基团包括但不限于本发明所述的烷基、环烷基、烷氧基、烯基、环烯基、炔基、环炔基、芳基、杂芳基、醛基、氨基、羧基、酯基、卤素、羟基、羰基、叠氮基、硝基、甲硅烷基、硫基-氧代(sulfo-oxo)或巯基。
本发明使用的术语“芳基”是含有任何基于碳的芳族基团的基团，所述基于碳的芳族基团包括但不限于苯、萘、苯基、联苯、苯氧基苯等。术语“芳基”也包括“杂芳基”，其被定义为含有芳族基团的基团，所述芳族基团具有至少一个引入芳族基团的环内的杂原子。杂原子的实例包括但不限于氮、氧、硫，和磷。同样，术语“非杂芳基”(其也包括在术语“芳基”中)定义了含有芳族基团的基团，所述芳族基团不含杂原子。芳基可为取代或未取代的。芳基可取代有一个或者多个基团，所述基团包括但不限于本发明所述的烷基、环烷基、烷氧基、烯基、环烯基、炔基、环炔基、芳基、杂芳基、醛基、氨基、羧基、酯基、卤素、羟基、羰基、叠氮基、硝基、甲硅烷基、硫基-氧代(sulfo-oxo)或巯基。术语“联芳基(biaryl)”是特定类型的芳基并且包含在“芳基”的定义中。联芳基是指经稠合的环结构结合在一起的两个芳基，如在萘中一样，或者经一个或者多个碳-碳键连接的两个芳基，如在联苯中一样。
本发明使用的术语“醛”通过式-C(O)H表示。在整个说明书中，“C(O)”是羰基(即，C＝O)的简写形式。
本发明使用的术语“胺”或“氨基”通过式-NR 1R 2表示，其中R 1和R 2可以独立的从氢、烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基或杂芳基中选择。
本发明使用的术语“烷基氨基”通过式-NH(-烷基)表示，其中烷基如本发明所述。代表性实例包括但不限于甲基氨基、乙基氨基、丙基氨基、异丙基氨基、丁基氨基、异丁基氨基、(仲丁基)氨基、(叔丁基)氨基、戊基氨基、异戊基氨基、(叔戊基)氨基、己基氨基等。
本发明使用的术语“二烷基氨基”通过式-N(烷基) 2表示，其中烷基如本发明所述。代表性实例包括但不限于二甲基氨基、二乙基氨基、二丙基氨基、二异丙 基氨基、二丁基氨基、二异丁基氨基、二(仲丁基)氨基、二(叔丁基)氨基、二戊基氨基、二异戊基氨基、二(叔戊基)氨基、二己基氨基、N-乙基-N-甲基氨基、N-甲基-N-丙基氨基、N-乙基-N-丙基氨基等。
本发明使用的术语“羧酸”通过式-C(O)OH表示。
本发明使用的术语“酯”通过式-OC(O)R 1或者-C(O)OR 1表示，其中R1可为本发明所述的烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基或者杂芳基。本发明使用的术语“聚酯”通过式-(R 1O(O)C-R 2-C(O)O) a-或者-(R 1O(O)C-R 2-OC(O)) a-表示，其中R 1和R 2可独立地为本发明所述的烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基，或者杂芳基并且“a”为1至500的整数。术语“聚酯”用于描述通过具有至少两个羧基的化合物与具有至少两个羟基的化合物之间的反应产生的基团。
本发明使用的术语“醚”通过式R 1OR 2表示，其中R 1和R 2可独立地为本发明所述的烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基或者杂芳基。本发明使用的术语“聚醚”通过式-(R 1O-R 2O) a-表示，其中R 1和R 2可独立地为本发明所述的烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基，或者杂芳基并且“a”为1至500的整数。聚醚基团的实例包括聚氧化乙烯、聚氧化丙烯和聚氧化丁烯。
本发明使用的术语“卤素”是指卤素氟、氯、溴和碘。
本发明使用的术语“杂环基”是指单环的和多环的非芳族环系，并且本发明使用的“杂芳基”是指单环的和多环的芳族环系：其中环成员中的至少一个不为碳。该术语包括氮杂环丁烷基、二噁烷基、呋喃基、咪唑基、异噻唑基、异噁唑基、吗啉基、噁唑基、包括1，2，3-噁二唑基、1，2，5-噁二唑基和1，3，4-噁二唑基的噁唑基、哌嗪基、哌啶基、吡嗪基、吡唑基、哒嗪基、吡啶基、嘧啶基、吡咯基、吡咯烷基、四氢呋喃基、四氢吡喃基、包括1,2,4,5-四嗪基的四嗪基、包括1,2,3,4-四唑基和1,2,4,5-四唑基的四唑基、包括1,2,3-噻二唑基、1,2,5-噻二唑基和1,3,4-噻二唑基的噻二唑基、噻唑基、噻吩基、包括1,3,5-三嗪基和1,2,4-三嗪基的三嗪基、包括1,2,3-三唑基和1,3,4-三唑基的三唑基等。
本发明使用的术语“羟基”通过式-OH表示。
本发明使用的术语“酮”通过式R 1C(O)R 2表示，其中R 1和R 2可独立地为本发明所述的烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基，或者杂芳基。
本发明使用的术语“叠氮基”通过式-N 3表示。
本发明使用的术语“硝基”通过式-NO 2表示。
本发明使用的术语“腈”通过式-CN表示。
本发明使用的术语“甲硅烷基”通过式—SiR 1R 2R 3表示，其中R 1、R 2和R 3可独立地为氢或者本发明所述的烷基、环烷基、烷氧基、烯基、环烯基、炔基、环炔基、芳基或者杂芳基。
本发明使用的术语“硫-氧代基团”通过式-S(O)R 1、-S(O) 2R 1、-OS(O) 2R 1或者-OS(O) 2OR 1表示，其中R 1可为氢或者本发明所述的烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基，或者杂芳基。在整个说明书中，“S(O)”为S＝O的简写形式。本发明使用的术语“磺酰基”是指通过式-S(O) 2R 1表示的硫-氧代基团，其中R 1可为烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基或者杂芳基。本发明使用的术语“砜”通过式R 1S(O) 2R 2表示，其中R 1和R 2可独立地为本发明所述的烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基或者杂芳基。本发明使用的术语“亚砜”通过式R 1S(O)R 2表示，其中R 1和R 2可独立地为本发明所述的烷基、环烷基、烯基、环烯基、炔基、环炔基、芳基或者杂芳基。
本发明使用的术语“巯基”通过式-SH表示
本发明使用的“R 1”、“R 2”、“R 3”、“R n”(其中n为整数)可独立地具有上面列举的基团中的一个或者多个。例如，如果R 1为直链烷基，那么烷基的一个氢原子可任选取代有羟基、烷氧基、烷基、卤素等。取决于选择的基团，第一基团可结合在第二基团内，或者可选择地，第一基团可悬挂即连接至第二基团。例如，对于短语“包含氨基的烷基”，氨基可结合在烷基的主链内。可选择地，氨基可连接至烷基的主链。所选基团的性质将决定是否第一基团嵌入或者连接至第二基团。
本发明所述化合物可含有“任选取代的”部分。通常，术语“取代的”(无论在前面是否存在术语“任选”)意味着指出的部分的一个或者多个氢被适合的取代基替代。除非另作说明，否则“任选取代的”基团可在基团的每个可取代位置具有适合的取代基，以及当在任何给出的结构中超过一个位置可取代有超过一个选自指定基团的取代基时，在每个位置的取代基可相同或者不同。本发明设想的取代基组合优选为形成稳定的或者化学上可行的化合物的那些。在某些方面，除非清楚地相反指示，否则还涵盖的是，各个取代基可进一步任选被取代(即，进一步取 代或未取代)。
化合物的结构可通过下式表示：
Figure PCTCN2022099676-appb-000019
其被理解为等同于下式：
Figure PCTCN2022099676-appb-000020
其中n通常为整数。即，R n被理解为表示五个单独的取代基R a(1)、R a(2)、R a(3)、R a(4)、R a(5)。“单独的取代基”是指每个R取代基可独立地限定。例如，如果在一个情况中R a(m)为卤素，那么在这种情况下R a(n)不一定是卤素。
在本发明公开的和描述的化学结构和部分中数次提及R 1、R 2、R 3、R 4、R 5、R 6等。在说明书中R 1、R 2、R 3、R 4、R 5、R 6等的任何描述分别适用于引用R 1、R 2、R 3、R 4、R 5、R 6等的任何结构或者部分，除非另作说明。
由于多种原因，使用有机材料的光电子器件变得越来越迫切。用于制造这种装置的许多材料相对便宜，因此有机光电装置具有无机装置成本优势的潜力。此外，有机材料的固有特性，例如它们的柔性，可以使它们非常适合于诸如在柔性基底上的制造等特殊应用。有机光电子器件的实例包括有机发光器件(OLED)、有机光电晶体管、有机光伏电池和有机光电探测器。对于OLED，有机材料可能具有优于常规材料的性能优点。例如，有机发光层发光的波长通常可以用适当的掺杂剂调谐。
激子从单重激发态衰减到基态以产生即时发光，其是荧光。如果激子从三重激发态衰减到基态以产生发光，这是磷光。由于重金属原子在单线态和三线态激发态之间的强自旋轨道耦合，有效地增强了系间穿越(ISC)，所以磷光金属配合物(如铂配合物)已经表现出其同时利用单线态和三线态激子的潜力，实现100％内部量子效率。因此，磷光金属配合物是有机发光器件(OLED)的发射层中的掺杂剂的良好选择，并且在学术和工业领域中已经获得了极大的关注。在过去十年中，已经取得了许多成果，从而导致了该技术的有利可图的商业化，例如，OLED已被用于智能手机，电视和数码相机的高级显示器。
然而，迄今为止，蓝色电致发光器件仍然是该技术中最具挑战性的领域，蓝色器件的稳定性是其一大问题。已经证明，主体材料的选择对蓝色器件的稳定性非常重要。但是，蓝色发光材料的三重激发态(T1)最低能量非常高，这意味着蓝色器件的主体材料的三重激发态(T1)最低能量应该更高。这导致蓝色设备的主体材料的开发困难加大。
本发明的金属配合物可以被定制或调谐到期望具有特定发射或吸收特性的特定应用。可以通过改变围绕金属中心的配体的结构或改变配体上的荧光发光体的结构来调节本发明公开的金属配合物的光学性质。例如，在发射和吸收光谱中，具有给电子取代基的配体的金属配合物或吸电子取代基通常可以表现出不同的光学性质。可以通过修饰荧光发光体和配体上的共轭基团来调节金属配合物的颜色。
本发明的配合物的发射可以例如通过改变配体或荧光发光体结构来调节，例如从紫外线到近红外。荧光发光体是有机分子中的一组原子，其可以吸收能量以产生单重态激发态，单重激子迅速衰变以产生即时发光。一方面，本发明的配合物可提供大部分可见光谱的发射。在具体实例中，本发明的配合物可以在可见光或近红外光的波段范围内发光。另一方面，本发明的配合物相对于传统的发射配合物具有改进的稳定性和效率。另外，本发明的配合物可用作例如生物应用，抗癌剂，有机发光二极管(OLED)中的发射体或其组合的发光标记。在另一方面，本发明的配合物可用于发光器件，例如紧凑型荧光灯(CFL)、发光二极管(LED)、白炽灯及其组合。
本文公开了包含铂的化合物或复合配合物。术语化合物或配合物在本发明可互换使用。另外，本文公开的化合物具有中性电荷。
本文公开的化合物可以表现出期望的性质并且具有可以通过选择合适的配体调节的发射和/或吸收光谱。在另一方面，本发明可以排除本文具体叙述的任何一种或多种化合物，结构或其部分。
本文公开的化合物适用于各种各样的光学和电光装置，包括但不限于光吸收装置，例如太阳能和感光装置，有机发光二极管(OLEDs)，光发射器件或能够兼容光吸收和发射的器件以及用作生物应用的标记物。
如上所述，所公开的化合物是铂配合物。同时，本文公开的化合物可用作 OLED应用的主体材料，例如全色显示器。
本文公开的化合物可用于各种应用。作为发光材料，该化合物可用于有机发光二极管(OLED)，发光装置和显示器以及其他发光器件。
另外，相对于传统材料，本发明中的化合物用于发光器件(如OLEDs)中，可以提高发光效率和器件的操作时间。
本发明的化合物可以使用多种方法制备，包括但不限于本文提供的实施例中所述的那些。
本文公开的化合物可以是延迟的荧光和/或磷光发射体。一方面，本文公开的化合物可以是延迟的荧光发射体。一方面，本文公开的化合物可以是磷光发射体。另一方面，本文公开的化合物可以是延迟荧光发射体和磷光发射体。
本发明的实施方式所公开的化合物适用于各种各样的光学和电光装置，包括但不限于太阳能和光敏感器件这样的光吸收器件、有机发光二极管(OLEDs)，光发射器件或既有光吸收又有光发射能力的器件以及用作生物应用的标记物。
本发明的实施方式所提供的化合物可用在一种诸如OLED之类的发光器件中，器件包括至少一个阴极、至少一个阳极和至少一层发光层，所述发光层中的至少一层包括上述的基于苯基咔唑的四齿环金属铂配合物。具体来说，发光器件可以包括依次沉积形成的阳极、空穴传输层、发光层、电子传输层和阴极。其中空穴传输层、发光层、电子传输层均为有机层，阳极和阴极与电连接。
合成实施例
以下关于化合物合成、成分、器件或者方法的例子只是为向该行业领域提供一个一般的方法，并不是用于限制该专利的保护范围.对于专利中提到的数据(数量，温度等)尽可能的保证精确，但也可能会存在一些误差。除非特别指出，否则称重都是分开称重，温度是℃，或者是常温，压力是接近常压。
下面例子中提供了新化合物的制备方法，但是该类化合物的制备不受限于此方法。在该专业技术领域中，由于本专利中的所保护的化合物易于修饰制备，因此，其制备可以采用下列所列举的方法或者采用其他的方法。下面的例子仅作为实施例，并不用于限制该专利的保护范围。温度、催化剂、浓度、反应物以及反应过程均可以改变，用于对不同的反应物，选择不同条件制备所述化合物。
1H NMR(500MHz)、 13C NMR(126MHz)谱在ANANCEⅢ(500M)型 核磁共振波谱仪上测定；如无特别说明，核磁均用DMSO-d 6或者含0.1％TMS的CDCl 3做溶剂，其中 1H NMR谱若以CDCl 3作溶剂时，以TMS(δ＝0.00ppm)作为内标；以DMSO-d 6作溶剂时，以TMS(δ＝0.00ppm)或残留DMSO峰(δ＝2.50ppm)或残留水峰(δ＝3.33ppm)做内标。 13C NMR谱中，以CDCl 3(δ＝77.00ppm)或者DMSO-d 6(δ＝39.52ppm)作为内标。HPLC-MS Agilent 6210 TOF LC/MS型质谱仪上测定；HRMS谱在Agilent 6210 TOF LC/MS型液相色谱-飞行时间质谱仪上测定。 1H NMR谱图数据中：s＝singlet，d＝doublet，t＝triplet，q＝quartet，p＝quintet，m＝multiplet，br＝broad。
合成路线
通用合成方法如下：
Figure PCTCN2022099676-appb-000021
实施例1：铂配合物Pt1可按如下路线合成：
Figure PCTCN2022099676-appb-000022
中间体8-甲氧基喹啉的合成：向带有磁力转子的100毫升三口瓶中，加入8-羟基喹啉(5.00克,34.5毫摩,1.00当量)，N,N-二甲基甲酰胺(40毫升)，然后将其置于低温浴中搅拌，待温度降低后缓慢加入质量分数为60％的钠氢(1.38克,34.5毫摩,1.00当量)，置于常温后加入碘甲烷(5.14克,36.3毫摩,1.05当量)，反应8h。反应混合物加乙醇淬灭，减压蒸馏除去溶剂后，用乙酸乙酯萃取三次，合并有机相，加无水硫酸钠干燥后，将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/丙酮)＝2:1，减压蒸馏除去溶剂，得黑红色固体4.76克，收率87％。 1H NMR(400MHz,CDCl 3):δ4.10(s,3H),7.06(d,J＝8.0Hz,1H),7.38–7.49(m,3H),8.13(d,J＝8.0Hz,1H),8.94(dd,J＝3.6,0.8Hz,1H)。
中间体1-NO的合成：向带有磁力转子的500毫升三口瓶中加入8-甲氧基喹啉(5.4克,34.2毫摩,1.00当量)，二氯甲烷(170毫升)，将三口瓶固定在低温反应浴中降温后缓慢加入间氯过氧苯甲酸(8.84克,51.3毫摩,1.50当量)，取出三口瓶，在室温下反应24小时。将反应混合物加硫代硫酸钠淬灭，加水稀释，后用二氯甲烷萃取4-5次，减压蒸馏除去溶剂，得粗品黑红色固体4.15克。收率69％。直接用于下一步。
中间体2-溴-8-甲氧基喹啉的合成：向带有磁力转子的1000毫升三口瓶中依次加入中间体1-NO(6.90克,39.4毫摩,1.00当量)，正丁基溴化铵(19.05克,59毫摩,1.50当量)，分子筛，加入二氯甲烷700毫升，在室温下搅拌10分钟后，加入对甲苯磺酸酐(19.28克,59毫摩,1.50当量)，在室温反应24h。将 反应混合物过滤，用二氯甲烷洗涤滤渣，将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝10:1)，减压蒸馏除去溶剂，得到白色固体4.3克，收率46％。 1H NMR(400MHz,CDCl 3):δ4.06(s,3H),7.08(d,J＝8.0Hz,1H),7.37(d,J＝8.0Hz,1H),7.47–7.51(m,1H),7.55(d,J＝8.8Hz,1H),7.96(d,J＝8.8Hz,1H)。
中间体L1-Me的合成：向带有磁力转子的50毫升三口瓶中依次加入2-溴-8-甲氧基喹啉(277毫克，1.16毫摩，1.10当量)，M-1(420毫克，1.06毫摩，1.00当量)，Pd(PPh 3) 4(35毫克，0.03毫摩，0.03当量)，K 2CO 3(365毫克，2.65毫摩，2.50当量)，抽换氮气三次后注射加入二氧六环/H 2O＝6:1毫升,升温85℃，反应24小时。反应混合物加水淬灭，加乙酸乙酯稀释，用乙酸乙酯萃取三次后加无水硫酸钠干燥，将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝8:1)，减压蒸馏除去溶剂，得白色泡沫状固体348毫克，收率75％。 1H NMR(400MHz,CDCl 3):δ1.69(s,6H),4.06(s,3H),6.87(dd,J＝8.0,1.2Hz,1H),7.02–7.12(m,3H),7.28(d,J＝0.8Hz,1H),7.36–7.42(m,3H),7.48(dd,J＝7.6,1.2Hz,1H),7.57–7.59(m,2H),7.71(d,J＝8.4Hz,1H),7.82–7.88(m,2H),8.10(d,J＝8.4Hz,1H),8.94(ddd,J＝4.8,2.0,0.8Hz,1H)。
中间体L1的合成：向带有磁力转子的的50毫升三口瓶中依次加入L1-Me(280毫克,0.63毫摩,1.00当量)，吡啶盐酸盐(912毫克,6.3毫摩,10.00当量)，抽换氮气三次，注射加入1,3-二甲基-2-咪唑啉酮3毫升，升温180℃。反应24小时。反应混合物加100毫升水淬灭，用乙酸乙酯萃取三次后合并有机相，用无水硫酸钠干燥，减压蒸馏除去溶剂。将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝15:1)，减压蒸馏除去溶剂，得白色泡沫状固体175毫克。收率65％。 1H NMR(400MHz,DMSO-d 6):δ1.63(s,6H),6.75(dd,J＝8.0,1.2Hz,1H),7.03–7.14(m,3H),7.36–7.47(m,4H),7.54(dd,J＝7.6,1.6Hz,1H),7.61(d,J＝2.0Hz,1H),7.66(d,J＝8.4Hz,1H),7.84(d,J＝8.8Hz,1H),8.01(td,J＝7.6,2.0Hz,1H),8.08(dd,J＝8.0,1.6Hz,1H),8.32(d,J＝8.4Hz,1H),8.94(dt,J＝4.8,1.6Hz,1H),9.40(s,1H)。
Pt1的合成：向带有磁力转子的50毫升三口瓶中依次加入L1(140毫克,0.33毫摩,1.00当量)，氯亚铂酸钾(143毫克,0.35毫摩,1.05当量)，抽换氮气三 次，注射加入醋酸。用氮气鼓泡30分钟，并室温搅拌8小时后升温120℃，反应24小时。反应混合物减压蒸馏除去醋酸30毫升，后将反应混合物通过硅胶柱色谱进行分离纯化，淋洗剂(二氯甲烷/乙酸乙酯＝15:1)，减压蒸馏除去溶剂，得深红色固体170毫克，收率84％。 1H NMR(400MHz,DMSO-d 6):δ1.34(s,3H),1.84(s,3H),5.76(s,1H),6.52(d,J＝8.0Hz,1H),6.74(d,J＝8.0Hz,1H),7.07(d,J＝8.0Hz,1H),7.21–7.25(m,4H),7.38(d,J＝8.0Hz,1H),7.53–7.56(m,2H),7.78(d,J＝8.8Hz,1H),8.00–8.05(m,1H),8.17(d,J＝8.8Hz,1H),8.88(dd,J＝6.0,2.0Hz,1H)。
实施例2：铂配合物Pt2可按如下路线合成：
Figure PCTCN2022099676-appb-000023
L2-Me的合成：向带有磁力转子的50毫升三口瓶中依次加入2-溴-8-甲氧基喹啉(234毫克,0.99毫摩,1.05当量)，B(400毫克,0.94毫摩,1.00当量)Pd(PPh 3) 4(32.5毫克,0.03毫摩,0.03当量)，K 2CO 3(324毫克,2.34毫摩,2.50当量)，抽换氮气三次后注射加入二氧六环/H 2O＝6:1毫升，升温85℃，反应24小时。反应混合物加水淬灭，加乙酸乙酯稀释，用乙酸乙酯萃取三次后加无水硫酸钠干燥，将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝6:1)，减压蒸馏除去溶剂，得白色泡沫状固体333毫克，收率78％。 1H NMR(500MHz,CDCl 3):δ1.70(s,6H),2.41(s,3H),4.05(s,3H),6.69(dd,J＝8.0,1.5Hz,1H),7.00–7.08(m,3H),7.14–7.15(m,1H),7.22(t,J＝0.5Hz,1H),7.34–7.43(m,3H),7.47(dd,J＝7.5,1.5Hz,1H),7.58(d,J＝8.0Hz,1H),7.67(d,J＝8.5Hz,1H),7.82(dd,J＝8.0,1.5Hz,1H),8.09(d,J＝8.5Hz,1H),8.61(d,J＝5.0 Hz,1H)。
中间体L2的合成：向带有磁力转子的50毫升三口瓶中依次加入L2-Me(320毫克,0.7毫摩,1.00当量)，吡啶盐酸盐(808毫克,7毫摩,10.00当量)，抽换氮气三次，注射加入1,3-二甲基-2-咪唑啉酮3毫升，升温180℃。反应24小时。反应混合物加100毫升水淬灭，用乙酸乙酯萃取三次后合并有机相，用无水硫酸钠干燥，减压蒸馏除去溶剂。将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝15:1)，减压蒸馏除去溶剂，得白色泡沫状固体224毫克，收率72％。 1H NMR(500MHz,CDCl 3):δ1.73(s,6H),2.44(s,3H),6.63(dd,J＝9.0,1.5Hz,1H),7.00–7.08(m,2H),7.14(dd,J＝7.5,1.0Hz,1H),7.21–7.22(m,1H),7.24(d,J＝0.5Hz,1H),7.29(dd,J＝8.0,1.0Hz,1H),7.39(t,J＝8.0Hz,1H),7.47–7.49(m,2H),7.69(d,J＝8.0Hz,1H),7.71(dd,J＝8.5,2.0Hz,1H),7.76(d,J＝9.0Hz,1H),8.61(d,J＝5.0Hz,1H),8.66(d,J＝5.0Hz,1H)。
Pt2的合成：向带有磁力转子的50毫升三口瓶中依次加入L2(220毫克,0.49毫摩,1.00当量)，氯亚铂酸钾(216毫克,0.52毫摩,1.05当量)，抽换氮气三次，注射加入醋酸30毫升。用氮气鼓泡30分钟，并室温搅拌8小时后升温120℃，反应24小时。反应混合物减压蒸馏除去醋酸，后将反应混合物通过硅胶柱色谱进行分离纯化，淋洗剂(二氯甲烷/乙酸乙酯＝20:1)，减压蒸馏除去溶剂，得淡红色固体170毫克，收率94％。 1H NMR(500MHz,DMSO-d 6):δ1.35(s,3H),1.84(s,3H),2.24(s,3H),6.53(dd,J＝7.5,0.5Hz,1H),6.75(d,J＝8.0Hz,1H),7.07(d,J＝7.5Hz,1H),7.10(dd,J＝6.5,1.5Hz,1H),7.20–7.25(m,4H),7.37(t,J＝4.5Hz,2H),7.52–7.54(m,1H),7.76(d,J＝8.5Hz,1H),8.17(d,J＝9.0Hz,1H),8.73(d,J＝6.5Hz,1H)。
实施例3：铂配合物Pt3可按如下路线合成：
Figure PCTCN2022099676-appb-000024
5-溴-8-甲氧基喹啉的合成：向带有磁力转子的500毫升三口瓶中加入8-甲氧基喹啉(4.76克,29.9毫摩,1.00当量)，加入乙腈230毫升，后缓慢加入N-溴代丁二酰亚胺(5.32克,31.3毫摩,1.05当量)，反应8小时。反应混合物加入亚硫酸钠水溶液淬灭反应，加入二氯甲烷稀释，用二氯甲烷萃取三次，合并有机相，加无水硫酸钠干燥。将粗品通过硅胶柱色谱进行分离纯化，淋洗剂(二氯甲烷/乙酸乙酯＝10:1)，减压蒸馏除去溶剂，得淡黄色固体5.8克，收率82％。直接用于下一步反应。
中间体3-A的合成：向带有磁力转子的反应管中依次加入5-溴-8-甲氧基喹啉(500毫克,2.1毫摩,1.00当量)，对叔丁基苯硼酸(374毫克,2.1毫摩,1.00当量)，Pd(PPh 3) 4(73毫克,0.06毫摩,0.03当量)，K 2CO 3(726毫克,5.25毫摩,2.5当量)，抽换氮气三次，注射加入二氧六环/H 2O＝8:2毫升，升温85℃，反应24小时。反应混合物加乙酸乙酯稀释，用乙酸乙酯萃取三次，合并有机相，用无水硫酸钠干燥，将粗品通过硅胶柱色谱分离纯化，淋洗剂(石油醚/乙酸乙酯＝3:2),减压蒸馏除去溶剂，得白色固体580毫克，收率94％。 1H NMR(400MHz,CDCl 3):δ1.40(s,9H),4.14(s,3H),7.11(d,J＝8.0Hz,1H),7.37–7.40(m,3H),7.44(d,J＝8.0Hz,1H),7.49–7.52(m,2H),8.28(dd,J＝8.4,1.6Hz,1H),8.94(dd,J＝8.4,2.0Hz,1H)。
中间体3-NO的合成：向带有磁力转子的500毫升三口瓶中加入3-A(5.00克,17.2毫摩,1.00当量)，二氯甲烷(100毫升)，将三口瓶固定在低温反应浴中降温后缓慢加入间氯过氧苯甲酸(5.9克,34.4毫摩,2.00当量)，取出三口瓶，在室温下进行反应24小时。将反应混合物加硫代硫酸钠淬灭，加水稀释，后用二氯甲烷萃取4-5次，减压蒸馏除去溶剂，将粗品用硅胶柱色谱分离纯化得黑红色固体2.1克，减压蒸馏除去溶剂。收率40％。直接用于下一步。
中间体3-Br的合成：向带有磁力转子的500毫升三口瓶中依次加入中间体3-NO(2.1克,7.2毫摩,1.00当量)，正丁基溴化铵(3.48克,10.81毫摩,1.50当量)，分子筛，加入二氯甲烷(180毫升)，在室温下搅拌10分钟后，加入对甲苯磺酸酐(3.53克,10.81毫摩,1.50当量)，在室温下搅拌过夜，反应24小时。将反应混合物过滤，用二氯甲烷洗涤滤渣，减压蒸馏除去溶剂，将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝20:1)，减压蒸馏除去溶剂，得到淡黄色固体800毫克，收率30％。 1H NMR(400MHz,CDCl 3):δ1.40(s,9H),4.10(s,3H),7.13(d,J＝8.0Hz,1H),7.33–7.35(m,2H),7.44–7.52(m,4H),8.10(d,J＝8.8Hz,1H)。
中间体L3-Me的合成：向带有磁力转子的反应管中依次加入3-Br(150毫克,0.4毫摩,1.00当量)，M-1(175毫克,0.43毫摩,1.05当量)，Pd(PPh 3) 4(15毫克,0.01毫摩,0.03当量)，K 2CO 3(140毫克,1.01毫摩,2.50当量) ，抽换氮气三次后注射加入二氧六环/H 2O＝6:1毫升,升温85℃，反应24小时。反应混合物加水淬灭，加乙酸乙酯稀释，用乙酸乙酯萃取三次后加无水硫酸钠干燥，将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝5:1)，减压蒸馏除去溶剂，得白色泡沫状固体170毫克，收率81％。 1H NMR(500MHz,CDCl 3):δ1.40(s,9H),1.69(s,6H),4.09(s,3H),6.83(dd,J＝8.0,1.5Hz,1H),7.02–7.10(m,3H),7.25–7.28(m,1H),7.36–7.40(m,4H),7.47–7.51(m,3H),7.54(d,J＝2.0Hz,1H),7.59(t,J＝8.0Hz,1H),7.63(d,J＝9.0Hz,1H),7.84(ddd,J＝8.0,7.5,2.0Hz,1H),7.88(dd,J＝8.0,1.5Hz,1H),8.23(d,J＝9.0Hz,1H),8.70(ddd,J＝5.0,2.0,1.0Hz,1H)。
中间体L3的合成：向带有磁力转子的反应管中依次加入L3-Me(170毫克,0.30毫摩,1.00当量)，吡啶盐酸盐(341毫克,3毫摩,10.00当量)，抽换氮气 三次，注射加入1,3-二甲基-2-咪唑啉酮3毫升，升温180℃，反应24小时。反应混合物加100毫升水淬灭，用乙酸乙酯萃取三次后合并有机相，用无水硫酸钠干燥，减压蒸馏除去溶剂。将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝30:1)，减压蒸馏除去溶剂，得淡黄色泡沫状固体80毫克。收率47％。 1H NMR(500MHz,CDCl 3):δ1.40(s,9H),1.72(s,6H),6.75(dd,J＝8.0Hz,1.5Hz,1H),7.04(td,J＝7.5,1.5Hz,1H),7.09(td,J＝7.5,2.0Hz,1H),7.34(ddd,J＝7.5,5.0,1.0Hz,1H),7.36–7.40(m,3H),7.41(dt,J＝9.0,1.0Hz,1H),7.49–7.51(m,3H),7.60(d,J＝4.5Hz,1H),7.61(d,J＝9.0Hz,1H),7.71(d,J＝9.0Hz,1H),7.76(dd,J＝8.5,2.0Hz,1H),7.89(ddd,J＝7.5,5.5,2.0Hz,1H),8.30(d,J＝9.0Hz,1H),8.77(ddd,J＝7.0,2.0,0.5Hz,1H)。
Pt3的合成：向带有磁力转子的50毫升三口瓶中依次加入L3(80毫克,0.14毫摩,1.00当量)，氯亚铂酸钾(61毫克,0.14毫摩,1.05当量)，抽换氮气三次，注射加入醋酸20毫升。用氮气鼓泡30分钟，并室温搅拌8h后升温120℃，反应24h。反应混合物减压蒸馏除去醋酸，后将反应混合物通过硅胶柱色谱进行分离纯化，淋洗剂(二氯甲烷/乙酸乙酯＝30:1)，减压蒸馏除去溶剂，得黑红色固体95毫克，收率90％。 1H NMR(500MHz,DMSO-d 6):δ1.34(s,9H),1.34(s,3H),1.84(s,3H),6.01(d,J＝8.0Hz,1H),7.05–7.13(m,2H),7.21–7.26(m,4H),7.35(d,J＝8.0Hz,1H),7.38–7.39(m,2H),7.50–7.52(m,2H),7.53–7.57(m,2H),7.75(d,J＝9.0Hz,1H),8.02–8.05(m,1H),8.13(d,J＝9.0Hz,1H),8.90(dd,J＝6.0,1.5Hz,1H)。
实施例4：铂配合物Pt42可按如下路线合成：
Figure PCTCN2022099676-appb-000025
中间体L42-Me的合成：向带有磁力转子的反应管中依次加入3-Br(130毫克,0.35毫摩,1.00当量)，M-2(149毫克,0.35毫摩,1.00当量)，Pd(PPh 3) 4(12.2毫克,0.01毫摩,0.03当量)，K 2CO 3(96.7毫克,0.7毫摩,2.0当量) ，抽换氮气三次后注射加入二氧六环/H 2O＝5:1毫升,升温85℃，反应24小时。反应混合物加水淬灭，加乙酸乙酯稀释，用乙酸乙酯萃取三次后加无水硫酸钠干燥，将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝10:1)，减压蒸馏除去溶剂，得白色泡沫状固体190毫克，收率91％。 1H NMR(500MHz,CDCl 3):δ1.40(s,9H),1.70(s,6H),2.40(s,3H),4.09(s,3H),6.67–6.72(m,1H),7.02(t,J＝6.0Hz,1H),7.05–7.09(m,2H),7.13(d,J＝5.0Hz,1H),7.22(s,1H),7.36–7.40(m,4H),7.47–7.51(m,3H),7.59(d,J＝8.0Hz,1H),7.62(d,J＝9.0Hz,1H),7.87(dd,J＝8.0,1.0Hz,1H),8.24(d,J＝9.0Hz,1H),8.61(d,J＝5.0Hz,1H)。
中间体L42的合成：向带有磁力转子的反应管中依次加入L3-Me(180毫克,0.30毫摩,1.00当量)，吡啶盐酸盐(352毫克,3毫摩,10.00当量)，抽换氮气三次，注射加入1,3-二甲基-2-咪唑啉酮3毫升，升温180℃，反应24小时。反应混合物加饱和碳酸氢钠溶液淬灭，用乙酸乙酯萃取三次后合并有机相，用无水硫酸钠干燥，减压蒸馏除去溶剂。将所得粗品通过硅胶柱色谱进行分离纯化，淋洗剂(石油醚/乙酸乙酯＝30:1)，减压蒸馏除去溶剂，得淡黄色固体153毫克。收率87％。 1H NMR(500MHz,CDCl 3):δ1.40(s,9H),1.73(s,6H),2.44(s,3H),6.66(d,J＝7.5Hz,1H),7.02–7.10(m,2H),7.21–7.22(m,2H),7.24–7.27(m,2H),7.37–7.39(m,3H),7.48–7.51(m,4H),7.61(d,J＝8.0Hz,1H),7.71–7.75(m,2H),8.33(d,J＝8.5Hz,1H),8.66(d,J＝5.0Hz,1H)。
Pt42的合成：向带有磁力转子的50毫升三口瓶中依次加入L3(130毫克,0.23毫摩,1.00当量)，氯亚铂酸钾(98.4毫克,0.23毫摩,1.05当量)，抽换氮气三次，注射加入醋酸14毫升。用氮气鼓泡30分钟，并室温搅拌8h后升温120℃，反应24h。反应混合物减压蒸馏除去醋酸，后将反应混合物通过硅胶柱色谱进行分离纯化，淋洗剂(二氯甲烷/乙酸乙酯＝30:1)，减压蒸馏除去溶剂，得黑红色固体140毫克，收率81％。 1H NMR(500MHz,DMSO-d 6):δ1.34(s,9H),1.35(s,3H),1.83(s,3H),2.24(s,3H),6.60(d,J＝8.0Hz,1H),7.07(d,J＝8.0Hz,1H),7.11(dd,J＝1.5,6.0Hz,1H),7.20–7.22(m,3H),7.23(d,J＝8.0Hz,1H),7.34(d,J＝8.0Hz,1H),7.37–7.39(m,3H),7.50–7.54(m,3H),7.74(d,J＝9.0Hz,1H),8.12(d,J＝9.0Hz,1H),8.75(d,J＝6.0Hz,1H)。
光物理测试和理论计算说明
使用Horiba Jobin Yvon FluoroLog-3光谱仪上进行稳态发射实验和寿命测量。Pt(II)配合物使用Titan软件包进行理论计算。利用密度泛函理论(DFT)优化了基态(S 0)分子的几何结构。使用B3LYP泛函进行DFT计算，其中C、H、O和N原子使用6-31G(d)基组，Pt原子使用LANL2DZ基组。
Figure PCTCN2022099676-appb-000026
由图1至附图3可知，铂配合物Pt1、Pt2、Pt3和Pt42在二氯甲烷溶液中可强烈发光，其最大发射波长分别为549nm，547nm，534nm和608nm，其溶液量子效率均大于40％。而基于双齿配体的对比铂配合物PtQ 2的溶液量子效率则仅为1.5％左右(I.Taydakov,K.Lyssenko,R.Saifutyarov,A.Akkuzina,R.Avetisov,A.Mozhevitina,I.Avetissov.Dyes and Pigments,2016,135,80-85)。由此可知本申请基于四齿配体的铂配合物相比双齿配体铂配合物的量子效率可大 大提高。
表1为理论计算实验部分得到的部分铂配合物前线轨道分布能级表。
表1：部分金属配合物的前线轨道能级
金属配合物 HOMO/eV LUMO/eV Gap/eV
Pt1 -4.50 -1.79 2.71
Pt2 -4.46 -1.73 2.73
Pt3 -4.44 -1.80 2.64
Pt4 -4.49 -1.81 2.68
Pt5 -4.43 -1.77 2.66
Pt6 -4.88 -2.02 2.41
Pt7 -4.49 -1.84 2.65
Pt8 -4.46 -1.97 2.49
Pt9 -4.63 -2.11 2.52
Pt10 -4.66 -2.17 2.49
Pt11 -4.70 -2.12 2.58
Pt12 -4.70 -1.95 2.75
Pt13 -4.37 -1.67 2.7
Pt14 -4.46 -1.80 2.66
Pt15 -4.39 -1.79 2.6
Pt16 -4.42 -1.74 2.68
Pt17 -4.33 -1.83 2.5
Pt18 -4.03 -1.68 2.35
Pt19 -4.34 -1.89 2.45
Pt20 -3.42 -1.71 1.71
Pt21 -4.57 -1.79 2.78
Pt22 -4.61 -1.89 2.72
Pt23 -4.45 -1.63 2.82
Pt24 -4.41 -1.59 2.82
Pt397 -4.57 -1.83 2.74
Pt398 -4.41 -1.74 2.67
Pt399 -4.26 -1.80 2.46
Pd1 -4.49 -1.69 2.8
Pd2 -4.45 -4.63 2.82
Pd3 -4.36 -1.59 2.77
Pd4 -4.43 -1.72 2.71
Pd5 -4.16 -1.55 2.61
Figure PCTCN2022099676-appb-000027
Figure PCTCN2022099676-appb-000028
由附图4可知，Pt2对比于Pt1，在吡啶上引入甲基，对于最高占据分子轨道(LUMO)，最低未占分子轨道(HOMO)影响不大，△E变化很小，最大发射波长接近，但可以增加分子稳定性。Pt3对比于Pt1，在喹啉部分引入对叔丁基苯基，会使HOMO分布离域明显，对LUMO的分布并无太大影响，△E降低，但光谱蓝移，可能是因为三线态能级提高，导致分子发射光谱蓝移。同时引入对叔丁基苯可有效抑制分子间π-π堆积，利于升华纯化。Pt4对比于Pt1，在喹啉部分引入三甲基苯基，对HOMO、LUMO影响不大，△E变化很小，因此预计光谱变化不大。可能是因为二面角较大，打断其共轭体系。
由附图5可知，Pt5对比于Pt1，在喹啉部分引入叔丁基，引入给电子基团但对LUMO影响不大，因此可见才喹啉部分引入吸电子基对分子电子云分布影响不大，可以通过在此区域引入大位阻给电子基团抑制分子间π-π堆积。Pt6对比于Pt1，可以明显观察到LUMO显著降低，因其LUMO主要分布在喹啉部分，在喹啉部分引入吸电子基团三氟甲基可使其LUMO分布显著降低，因此可在此位置引用吸电子基团可高效调控其LUMO，进而对分子的光物理性质进行调控。Pt7对比于Pt1，在喹啉右侧引入了苯基，增大了共轭体系，可明显观察到其部分HOMO分散在苯基上，减小△E，预计使发射光谱红移。Pt8对比于Pt1，通过苯基将吖啶基和喹啉基相连，使得HOMO主要分布在喹啉部分，LUMO向苯基并喹啉部分离域，降低了△E，预计使发射光谱红移。
由附图6可知，Pt9对比于Pt1，由于其LUMO部分分布在吡啶环上，通过在吡啶上引入吸电子基团三氟甲基，LUMO分布向吡啶环方向离域，使LUMO主要分布在吡啶部分，对HOMO的分布影响不大降低了△E，预计使发射光谱 红移。Pt10对比于Pt1，由于氮原子与三氟甲基类似，都为吸电子基，因此可观察到其LUMO类似于Pt9向吡啶部分离域，降低△E，预计可使其发射光谱红移。Pt11对比于Pt1，将氮原子引入在喹啉部分，可观察到其LUMO向喹啉部分离域，降低了LUMO，预计使发射光谱红移。Pt11表现出类似的结果。
由附图7可知，Pt13对比于Pt1，在不改变能带情况下，同时升高了LUMO、HOMO能级，可以在器件中匹配更合适的主体材料。Pt14对比于Pt2，由于引入了苯基，增大了共轭体系，使其HOMO发生离域，△E变化不大。Pt15对比于Pt3，在喹啉部分引入了一个苯基，在吡啶部分引入了叔丁基，可观察到除了苯基对HOMO带来一定的共轭离域效应外，对HOMO、HOMO分布影响较小，因此吡啶环引入叔丁基可以有效增加其空间位阻，且对电子云分布密度影响甚小，可以提高其激子利用效率。而在喹啉区域引入共轭体系则可以增强分子刚性且对电子云分布影响较小。Pt16对比于Pt4，在喹啉部分及吡啶部分各引入一个叔丁基，吡啶环上的叔丁基对电子云分布密度影响不大，且增加了空间位阻，有利于提高激子利用效率。通过观察电子云密度分布，喹啉侧的叔丁基对其分布影响也不大，因此光谱性质变化不大，而两个叔丁基的结构会更加有利于提高激子的利用效率。
由附图8可知，Pt17对比于Pt5，由Pt2与Pt1的对照可知，吡啶环中引入甲基对电子云分布影响不大，将氧原子换为硫原子，由于硫原子的吸电子能力比氧强，其HOMO向硫原子离域，△E降低，预计使发射光谱红移。Pt18对比于Pt1，将氧原子换为苯胺，苯基与喹啉的共轭平面二面角较大，打断其共轭体系，增强了分子刚性。其给电子能力使HUMO显著升高，大幅降低了△E,预计使发射光谱红移。Pt19对比于Pt17，苯基及对叔丁基苯基与共轭平面的二面角较大，打断了共轭体系，因此对HOMO、LOMO的分布影响不大，而由前者验证吡啶环上的叔丁基对电子云分布影响不明显，因此可以通过在吡啶环上引入叔丁基及在喹啉环上引入对叔丁基苯基来增大其空间位阻效应，利于抑制分子间π-π堆积。Pt20对比于Pt16，引入二苯胺强给电子基团，大幅提高了HOMO能级，降低△E，可使其发射光谱大幅红移，因此可在调节发光颜色上有明显作用。
由附图9可知，Pt21、Pt22、Pt23、Pt24对比于Pt1，由Pt1的电子云分布密度可知，其HOMO主要分布在金属Pt原子附近的喹啉共轭体系内，而LUMO 主要分布在吡啶环和喹啉共轭体系中，而六元环桥联的位置对HOMO、LUMO的影响不大，因此Pt21-Pt24相较于Pt1对分子电子云分布的调控影响不大。
综上所述，在喹啉环中氧对位引入强吸电子结构可显著降低其LUMO能级。在吡啶环中引入强吸电子结构能够降低其LUMO能级。在喹啉环中氧对位引入对叔丁基苯基或三甲基苯基可在对HOMO、LUMO影响不大的情况下抑制分子的π-π堆积，利于材料分子的纯化。在喹啉环中适当增加共轭结构可增强其分子刚性并延伸共轭体系，客队其光物理性质进行调节。
本发明所述的含有喹啉结构单元的金属铂(II)和钯(II)配合物发光材料在作为有机电致发光器件的发光层中的应用。在有机发光元件中，从正负两电极向发光材料中注入载子，产生激发态的发光材料并使其发光。通过通式(1)代表的本发明的化合物可作为发光材料应用于有机光致发光元件或有机电致发光元件等有机发光元件。有机光致发光元件具有在衬底上至少形成了发光层的结构。另外，有机电致发光元件具有至少形成了阳极、阴极、及阳极和阴极之间的有机层的结构。有机层至少包含发光层，可以仅由发光层构成，也可以除发光层以外具有1层以上的有机层。作为这种其它有机层，可以列举空穴传输层、空穴注入层、电子阻挡层、空穴阻挡层、电子注入层、电子传输层、激子阻挡层等。空穴传输层也可以是具有空穴注入功能的空穴注入传输层，电子传输层也可以是具有电子注入功能的电子注入传输层。具体的有机发光元件的结构示意如图10所示。在图10中，从下到上共7层，依次表示衬底、阳极、空穴注入层、空穴传输层、发光层、电子传输层和阴极，其中发光层为客体材料掺杂入主体材料的混合层。
将实施例1-3中所表示的配合物作为磷光发光材料应用于OLED器件，结构表示为：
ITO/HATCN(10nm)/NPD(65nm)/mCBP:实施例1-3中所表示的配合物(5-20wt.％,20nm)/BAlq(10nm)/BPyTP(30nm)/LiF(1nm)/Al(100nm)
其中，ITO为透明阳极；HATCN是空穴注入层，NPD是空穴传输层，mCBP是主体材料，实施例1-3中所表示的配合物(5-20wt.％是掺杂浓度,20nm是发光层的厚度)是客体材料，BAlq是空穴阻隔层，BPyTP为电子传输层，LiF为电子注入层，Al为阴极。括号中单位为纳米(nm)的数字为薄膜的厚度。
需要说明的是，所述结构为本发明发光材料的一个应用的举例，不构成本发 明所示发光材料的具体OLED器件结构的限定，发光材料也不限于实施例1-3中所表示的化合物。
器件中应用材料的分子式如下：
Figure PCTCN2022099676-appb-000029
依据上述器件实施例，OLED器件的外量子效率(EQE)、操作电压、寿命等特性显示在下表1中。
表1
实施例 化合物 操作电压(伏) EQE LT90(小时)
对比器件1 PtQ 2 3.8 6.5％ 10
器件例1 Pt1 3.7 15.6％ 25
器件例2 Pt2 3.7 16.0％ 32
器件例3 Pt3 3.6 17.3％ 53
本领域的普通技术人员可以理解，上述各实施方式是实现本发明的具体实施例，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本发明的精神和范围。例如，在不背离本发明的精神的情况下，这里描述的许多取代基结构可以用其它结构代替。

Claims (10)

  1. 一种含有喹啉结构单元的的金属铂(II)和钯(II)配合物，其特征在于，所述含有含有喹啉结构单元的金属铂(II)和钯(II)配合物具有通式(I)所示的结构：
    Figure PCTCN2022099676-appb-100001
    其中：
    M选自Pt或Pd；
    A选自O,S或NR 6；
    X可以为O,S,CH 2,CHD,CD 2,CR 7R 8,C＝O,SiR 9R 10,NH,ND,NR 11,PH,PD,PR 12,R 13P＝O,S＝O,或SO 2；
    X选自O,S,或NR 14；
    Y 1,Y 2,Y 3,Y 4,Y 5,Y 6,Y 7,Y 8,Y 9,Y 10,Y 11,Y 12,Y 13和Y 14各自独立地为N或CH；
    所述R 1、R 2、R 3、R 4、R 5、R 6、R 7、R 8、R 9、R 10、R 11、R 12、R 13和R 14的取代方式各自独立地表示为单取代、双取代、三取代、四取代或者无取代；R 1、R 2、R 3、R 4、R 5、R 6、R 7、R 8、R 9、R 10、R 11、R 12、R 13和R 14各自独立地表示为氢、氘、烷基、卤代烷基、环烷基、烷氧基、芳基、杂芳基、芳氧基、卤素、环烯基、杂环基、烯基、炔基、羟基、巯基、硝基、氰基、氨基、单或二烷基氨基、单或二芳基氨基、酯基、腈基、异腈基、杂芳基、烷氧基羰基、酰氨基、烷氧基羰基氨基、芳氧基羰基氨基、磺酰基氨基、氨磺酰基、氨基甲酰基、烷硫基、亚磺酰基、脲基、磷酰胺基、亚胺基、磺基、羧基、肼基、甲硅烷基、取代的甲硅烷基、聚合的基团、或其组合，且两个或者多个邻近的R 1、R 2、R 3、R 4、R 5、R 6、R 7、R 8、R 9、R 10、R 11、R 12、R 13和R 14可以选择性链接形成稠环。
  2. 根据权利要求1所述的含有喹啉结构单元的的金属铂(II)和钯(II)配合物，其特征在于，所述铂配合物具有通式(II)、(III)、(IV)或(V)所示的结构：
    Figure PCTCN2022099676-appb-100002
    Figure PCTCN2022099676-appb-100003
  3. 根据权利要求1所述的含有喹啉结构单元的的金属铂(II)和钯(II)配合物，其特征在于，左侧的
    Figure PCTCN2022099676-appb-100004
    优选自以下所示结构中的一种：
    Figure PCTCN2022099676-appb-100005
  4. 根据权利要求1所述的含有喹啉结构单元的的金属铂(II)和钯(II)配合物，其特征在于，所述铂(II)和钯(II)配合物具有如下之一的结构：
    Figure PCTCN2022099676-appb-100006
    Figure PCTCN2022099676-appb-100007
    Figure PCTCN2022099676-appb-100008
    Figure PCTCN2022099676-appb-100009
    Figure PCTCN2022099676-appb-100010
    Figure PCTCN2022099676-appb-100011
    Figure PCTCN2022099676-appb-100012
    Figure PCTCN2022099676-appb-100013
    Figure PCTCN2022099676-appb-100014
    Figure PCTCN2022099676-appb-100015
    Figure PCTCN2022099676-appb-100016
    Figure PCTCN2022099676-appb-100017
    Figure PCTCN2022099676-appb-100018
    Figure PCTCN2022099676-appb-100019
  5. 权利要求1至4中任一项所述的含有喹啉结构单元的金属铂(II)或钯(II)配合物在电致发光器件中的应用。
  6. 一种器件，其特征在于，所述器件包含权利要求1至4中任一项所述的含有喹啉结构单元的金属铂(II)或钯(II)配合物。
  7. 根据权利要求6所述的器件，其特征在于，所述器件为全彩显示器、光伏器件、发光显示器件或有机发光二极管。
  8. 根据权利要求6所述的器件，其特征在于，包括至少一个阴极、至少一个阳极和至少一层发光层，所述发光层中的至少一层包括权利要求1至4中任一项所述的含有喹啉结构单元的金属铂(II)或钯(II)配合物。
  9. 根据权利要求6所述的器件，其特征在于，所述器件为有机发光二极管，其发光层中含有所述含有喹啉结构单元的金属铂(II)或钯(II)配合物和相应的主体材料，其中金属铂(II)或钯(II)配合物的质量百分数在1％至50％，主体材料没有任何限制。
  10. 一种显示或照明装置，其特征在于，所述的显示或照明装置含有权利要求6至9所述的器件。
PCT/CN2022/099676 2021-07-13 2022-06-20 一种含有喹啉结构单元的四齿环金属铂(ii)和钯(ii)配合物发光材料及其应用 WO2023284486A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020237043565A KR20240016305A (ko) 2021-07-13 2022-06-20 퀴놀린 구조 단위를 포함하는 4좌 고리 금속 백금(ii)과 팔라듐(ii) 착물 발광 재료 및 이의 응용
EP22841126.0A EP4342893A4 (en) 2021-07-13 2022-06-20 PLATINUM(II)-PALLADIUM(II) TETRADENTATE CYCLOMETAL COMPLEX LUMINESCENT MATERIAL CONTAINING QUINOLINE STRUCTURAL UNIT AND USE THEREOF
JP2023578858A JP2024524203A (ja) 2021-07-13 2022-06-20 キノリン構造単位を含有する四座シクロメタル化白金（ｉｉ）及びパラジウム（ｉｉ）錯体発光材料及びその使用
MX2024000284A MX2024000284A (es) 2021-07-13 2022-06-20 Un tipo de material luminiscente de complejo metalico de platino(ii) y paladio(ii) con estructura de anillo tetradentado que contiene unidades de quinolina y sus aplicaciones.
US18/545,627 US20240164204A1 (en) 2021-07-13 2023-12-19 Tetradentate cyclometalated platinum (ii) and palladium (ii) complex luminescence material containing quinoline structure unit and application thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110788173.4 2021-07-13
CN202110788173.4A CN113501809B (zh) 2021-07-13 2021-07-13 一种含有喹啉结构单元的四齿环金属铂(ii)和钯(ii)配合物发光材料及其应用

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/545,627 Continuation US20240164204A1 (en) 2021-07-13 2023-12-19 Tetradentate cyclometalated platinum (ii) and palladium (ii) complex luminescence material containing quinoline structure unit and application thereof

Publications (1)

Publication Number Publication Date
WO2023284486A1 true WO2023284486A1 (zh) 2023-01-19

Family

ID=78012856

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/099676 WO2023284486A1 (zh) 2021-07-13 2022-06-20 一种含有喹啉结构单元的四齿环金属铂(ii)和钯(ii)配合物发光材料及其应用

Country Status (7)

Country Link
US (1) US20240164204A1 (zh)
EP (1) EP4342893A4 (zh)
JP (1) JP2024524203A (zh)
KR (1) KR20240016305A (zh)
CN (1) CN113501809B (zh)
MX (1) MX2024000284A (zh)
WO (1) WO2023284486A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113501809B (zh) * 2021-07-13 2022-07-26 浙江工业大学 一种含有喹啉结构单元的四齿环金属铂(ii)和钯(ii)配合物发光材料及其应用
CN114031643B (zh) * 2021-11-09 2024-05-31 浙江虹舞科技有限公司 一种基于喹啉单元结构的5/6/6并环四齿环金属铂(ii)配合物磷光材料及应用
CN114805446B (zh) * 2022-04-09 2023-08-15 浙江工业大学 金属铂(ii)和钯(ii)配合物、有机发光器件及显示或照明装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101370904A (zh) * 2006-01-24 2009-02-18 E.I.内穆尔杜邦公司 有机金属配合物
CN103097395A (zh) * 2010-07-21 2013-05-08 港大科桥有限公司 应用于有机发光二极管的铂(ii)四齿oncn络合物
CN109608506A (zh) * 2018-12-30 2019-04-12 浙江工业大学 含有四齿配体的四价金属铂配合物、制备方法、应用及器件
CN109970714A (zh) * 2017-12-28 2019-07-05 广东阿格蕾雅光电材料有限公司 一种四齿铂(ii)配合物及应用
CN111518142A (zh) * 2020-06-10 2020-08-11 浙江工业大学 基于羧基配位且含有吡啶基吖啶的四齿环金属铂（ii）配合物及其应用
CN111574501A (zh) * 2020-06-10 2020-08-25 浙江工业大学 基于氧原子链接且含有苯基吖啶的四齿环金属铂（ii）配合物及其应用
CN111662336A (zh) * 2020-02-06 2020-09-15 浙江虹舞科技有限公司 四齿环金属铂配合物磷光材料及有机发光元件
US20210111355A1 (en) * 2014-01-07 2021-04-15 Arizona Board Of Regents On Behalf Of Arizona State University Tetradentate Platinum And Palladium Complex Emitters Containing Phenyl-Pyrazole And Its Analogues
CN113501809A (zh) * 2021-07-13 2021-10-15 浙江工业大学 一种含有喹啉结构单元的四齿环金属铂(ii)和钯(ii)配合物发光材料及其应用

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116962A1 (de) * 2001-04-05 2002-10-10 Covion Organic Semiconductors Rhodium- und Iridium-Komplexe
KR102650656B1 (ko) * 2017-09-05 2024-03-25 삼성전자주식회사 유기금속 화합물 및 이를 포함한 유기 발광 소자
CN108409794B (zh) * 2018-02-09 2021-01-19 瑞声光电科技(常州)有限公司 基于苯基-咔唑的四齿环金属铂配合物及其应用
CN108948095B (zh) * 2018-08-02 2021-01-19 浙江工业大学 基于苯基咔唑的四齿环金属铂配合物及其应用
CN108948096B (zh) * 2018-08-02 2021-04-02 浙江工业大学 基于联苯基的四齿环金属铂配合物及其应用

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101370904A (zh) * 2006-01-24 2009-02-18 E.I.内穆尔杜邦公司 有机金属配合物
CN103097395A (zh) * 2010-07-21 2013-05-08 港大科桥有限公司 应用于有机发光二极管的铂(ii)四齿oncn络合物
US20210111355A1 (en) * 2014-01-07 2021-04-15 Arizona Board Of Regents On Behalf Of Arizona State University Tetradentate Platinum And Palladium Complex Emitters Containing Phenyl-Pyrazole And Its Analogues
CN109970714A (zh) * 2017-12-28 2019-07-05 广东阿格蕾雅光电材料有限公司 一种四齿铂(ii)配合物及应用
CN109608506A (zh) * 2018-12-30 2019-04-12 浙江工业大学 含有四齿配体的四价金属铂配合物、制备方法、应用及器件
CN111662336A (zh) * 2020-02-06 2020-09-15 浙江虹舞科技有限公司 四齿环金属铂配合物磷光材料及有机发光元件
CN111518142A (zh) * 2020-06-10 2020-08-11 浙江工业大学 基于羧基配位且含有吡啶基吖啶的四齿环金属铂（ii）配合物及其应用
CN111574501A (zh) * 2020-06-10 2020-08-25 浙江工业大学 基于氧原子链接且含有苯基吖啶的四齿环金属铂（ii）配合物及其应用
CN113501809A (zh) * 2021-07-13 2021-10-15 浙江工业大学 一种含有喹啉结构单元的四齿环金属铂(ii)和钯(ii)配合物发光材料及其应用

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
I. TAYDAKOVK. LYSSENKOR. SAIFUTYAROVA. AKKUZINAR. AVETISOVA. MOZHEVITINAI. AVETISSOV, DYES AND PIGMENTS, vol. 135, 2016, pages 80 - 85
NATURE, vol. 395, 1998, pages 151
See also references of EP4342893A4

Also Published As

Publication number Publication date
JP2024524203A (ja) 2024-07-05
KR20240016305A (ko) 2024-02-06
CN113501809A (zh) 2021-10-15
EP4342893A1 (en) 2024-03-27
US20240164204A1 (en) 2024-05-16
CN113501809B (zh) 2022-07-26
MX2024000284A (es) 2024-02-02
EP4342893A4 (en) 2024-10-16

Similar Documents

Publication Publication Date Title
JP6595834B2 (ja) ６員配位環を有する三座シクロメタル化金属錯体
WO2023284486A1 (zh) 一种含有喹啉结构单元的四齿环金属铂(ii)和钯(ii)配合物发光材料及其应用
JP2019065289A (ja) 含窒素多環芳香族をアクセプターとして含むドナー−アクセプター化合物
CN108948095B (zh) 基于苯基咔唑的四齿环金属铂配合物及其应用
WO2009119163A1 (ja) 有機電界発光素子用化合物及びこれを用いた有機電界発光素子
WO2023193596A1 (zh) 金属铂(ii)和钯(ii)配合物、有机发光器件及显示或照明装置
US10246475B2 (en) Multidentate dinuclear cyclometallated platinum complexes containing N-(pyrimidin-2-yl)-carbazole and its analogues
WO2024002049A1 (zh) 组合物、制剂、有机电致发光器件及显示或照明装置
CN115260249B (zh) 组合物、制剂、有机电致发光器件及显示或照明装置
WO2022223011A1 (zh) 基于1,8-取代咔唑的高辐射速率铂配合物及应用
WO2024027411A1 (zh) 一种圆偏振发光材料及应用、发光显示器件及显示装置
CN109608506A (zh) 含有四齿配体的四价金属铂配合物、制备方法、应用及器件
Zhu et al. Tetradentate Pt (II) complexes with peripheral hindrances for highly efficient solution-processed blue phosphorescent OLEDs
WO2024113800A1 (zh) 有机发光二极管材料、器件及装置
KR20180055853A (ko) 금속 착물
CN115651028B (zh) 配合物、组合物、有机电致发光器件及显示或照明装置
CN115286664B (zh) 组合物、制剂、有机电致发光器件及显示或照明装置
CN115651029B (zh) 基于螺芴-联苯-氮杂吖啶的四齿并环金属铂(ii)配合物磷光发光材料及其应用
CN108409794B (zh) 基于苯基-咔唑的四齿环金属铂配合物及其应用
CN108948096B (zh) 基于联苯基的四齿环金属铂配合物及其应用
CN114702528A (zh) 一种含有咔唑类衍生物的n^n^c^n四齿铂(ii)配合物及其应用
CN113735912B (zh) 基于芳香胺类给体取代苯的给-受体型四齿环金属铂或钯配合物磷光材料及其应用
CN109535205B (zh) 一种含有四齿配体和芳氧基衍生物的铂配合物
WO2023179479A1 (zh) 金属铂配合物、有机光电器件及显示或照明装置
CN115490735B (zh) 组合物、制剂、有机电致发光器件及显示或照明装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22841126

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20237043565

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020237043565

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2023578858

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2022841126

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: MX/A/2024/000284

Country of ref document: MX

ENP Entry into the national phase

Ref document number: 2022841126

Country of ref document: EP

Effective date: 20231221

NENP Non-entry into the national phase

Ref country code: DE