WO2004101682A1 - 組成物および高分子発光素子 - Google Patents
組成物および高分子発光素子 Download PDFInfo
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- C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of derivatives of such polymers
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- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
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- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
- C08G61/125—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds with a five-membered ring containing one oxygen atom in the ring
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- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
- C08G61/126—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds with a five-membered ring containing one sulfur atom in the ring
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- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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Definitions
- the present invention relates to a composition, a polymer complex compound, and a polymer light-emitting device (hereinafter, sometimes referred to as a polymer LED) including a polymer compound and a compound that emits light from a triplet excited state.
- a polymer LED a polymer light-emitting device
- a light-emitting material used for a light-emitting layer of a light-emitting element an element using a compound that emits light from a triplet excited state (hereinafter, sometimes referred to as a triplet light-emitting compound) for a light-emitting layer is known to have high luminous efficiency. Have been.
- a triplet light-emitting compound When a triplet light-emitting compound is used in the light-emitting layer, it is usually used as a composition containing a matrix in addition to the compound.
- composition using a polymer compound as a matrix for example, a polymer conjugate having a fluorenediyl group as a repeating unit as a repeating unit
- composition containing 2,8,12,17'-tetraethyl-1,3,7,13,18-tetramethylporphyrin, which is a triplet light-emitting compound, is disclosed.
- the device using the above composition for the light-emitting layer still had insufficient luminous efficiency.
- An object of the present invention is to provide a composition comprising a compound exhibiting light emission from a triplet excited state and a polymer compound, wherein the composition using the compound in a light emitting layer of a light emitting element has excellent luminous efficiency. 'To do.
- the present invention relates to a polymer having a repeating unit represented by the following general formula (1) and having a number average molecular weight of 10 3 to 10 8 in terms of polystyrene and a compound which emits light from a triplet excited state.
- Compositions comprising:
- the P ring and the Q ring each independently represent an aromatic ring, but the P ring may or may not be present.
- Two bonds are present on the P ring and / or the Q ring, respectively, when the P ring is present, and on the five-membered ring containing Y and / or the Q ring, respectively, when the P ring is not present.
- Alkylthio group 7-reel alkenyl group, aryl alkynyl group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imine residue, amide group, acid imide group, It may have a substituent selected from the group consisting of a monovalent heterocyclic group, a carboxyl group, a substituting lipoxyl group and a cyano group.
- R 2, R 3 and R 4 is each independently an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an arylalkenyl group, an aryl group.
- the present invention also includes a repeating unit represented by the above formula (1), a repeating unit selected from the following formulas (12) and (13), and a metal complex structure showing light emission from a triplet excited state.
- R 4 () is an alkyl, alkoxy group, Alkylthio group, alkylsilyl group, alkylamino group, aryl group optionally having substituent (s) or monovalent heterocyclic group X is a single bond,
- R 41 is independently a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an arylalkylalkenyl group
- Ar 6, Ar 7, A r 8 and A r s each independently.
- Ar. , Ar, and Ari 2 each represent an aryl group or a monovalent heterocyclic group.
- X and y each independently represent 0 or 1, and 0 ⁇ x + y ⁇ l. ]
- the polymer conjugate used in the present invention has a repeating unit represented by the above formula (1).
- the aromatic rings in the P and Q rings include aromatic hydrocarbon rings such as benzene ring, naphthalene ring, anthracene ring, tetracene ring, pentacene ring, pyrene ring and phenanthrene ring; pyridine ring, viviridine And heteroaromatic rings such as a ring, a phenanthroline ring, a quinoline ring, an isoquinoline ring, a thiophene ring, a furan ring and a pyrrole ring.
- the aromatic ring is preferably an aromatic hydrocarbon ring.
- R i, R 2 , R 3 And R 4 are each independently an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an arylalkenyl group, or Represents a reel alkynyl group, an amino group, a substituted amino group, a silyl group, a substituted silyl group, a silyloxy group, a substituted silyloxy group, a monovalent heterocyclic group or a halogen atom.
- Y is preferably 1S- or 110-1.
- the structure represented by the above formula (1) includes a structure represented by the following formula (111), (1-2) or (1-3)
- ring A, ring B, and ring C each independently represent an aromatic ring.
- Formulas 0-1), (1-2), and (1-3) represent an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, and an aryl group, respectively.
- Y is as above Represent the same meaning.
- ring D, ring E, ring F and ring G each independently represent an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylaryl group, an arylalkyl group, an arylalkoxy group, or an aryloxy group.
- Reelalkylthio group arylalkenyl group, arylalkynyl group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imine residue, amide group, acid imide group, monovalent And an aromatic ring which may have a substituent selected from the group consisting of a heterocyclic group, a carboxyl group, a propyloxyl group and a cyano group.
- Y represents the same meaning as described above. ];
- aromatic hydrocarbon rings such as a benzene ring, a naphthalene ring, an anthracene ring, a tetracene ring, a pencene ring, a pyrene ring and a phenanthrene ring; a pyridine ring, a pyridine ring, and a phenyl ring.
- Examples include a heteroaromatic ring such as a nantroline ring, a quinoline ring, an isoquinoline ring, a thiophene ring, a furan ring, and a pyrrole ring.
- a heteroaromatic ring such as a nantroline ring, a quinoline ring, an isoquinoline ring, a thiophene ring, a furan ring, and a pyrrole ring.
- formula (1-2) include the following.
- the following are an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an aryloxy group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an arylalkenyl group, Reel alkynyl group, amino group, substituted amino group, silyl group, substituted silyl group A substituent selected from the group consisting of a lyl group, a halogen atom, an acyl group, an acyloxy group, an imine residue, an amide group, an acid imide group, a monovalent heterocyclic group, a lipoxyl group, a substitution lipoxyl group and a cyano group.
- a bond means that it can take an arbitrary position on the aromatic compound where it exists.
- alkyl, alkoxy, alkylthio, aryl, aryloxy, aryloxy, arylalkyl, arylalkoxy, arylalkylthio, arylalkenyl, arylalkynyl include the following: Group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imine residue, amide group, acid imide group, monovalent heterocyclic group, lipoxyl group, substitution force Examples include those having a substituent selected from the group consisting of a ropoxyl group and a cyano group. In the following, a bond means that it can take any position on the aromatic ring where it exists. "'
- Equation (1-5) Specific examples include the following. Also, the following are alkyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, arylalkyl, arylalkoxy, arylalkylthio, arylalkenyl, arylalkynyl, amino Group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imine residue, amide group, acid imide group, monovalent heterocyclic group, lipoxyl group, lipoxyl group, and Those having a substituent selected from the group consisting of cyano groups can be mentioned. In the following, a bond means that it can take any position on the aromatic ring where it exists.
- R R R R R R R R 10 , R 13 and R u are each independently an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, Monothio, arylalkyl, arylalkoxy, arylalkylthio, arylalkenyl, arylalkynyl, amino, substituted amino, silyl, substituted silyl, acyloxy, imine It represents a residue, an amide group, an acid imide group, a monovalent complex ring group, a lipoxyl group, or a substitution lipoxyl group.
- a and b each independently represent an integer of 0-3.
- c, d, e and f each independently represent an integer of 0 to 5.
- g, h, i and :) ′ each independently represent an integer of 0 to 7.
- a + b, c + d, e + f, g + h, and i + j are preferably 1 or more.
- the polymer conjugate used in the composition of the present invention may further have a repeating unit represented by the following formula (2), (3), (4) or (5).
- Ar have Ar have A r 3 and A r 4 each independently Ariren group, a 2-valent group having a divalent heterocyclic 'ring group or a metal complex structure.
- R 15 and R 16 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group, a lipoxyl group, a substitution lipoxyl group or a cyano group.
- R 17 , R 18 and R 19 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group, an arylalkyl group, or a substituted amino group.
- ff indicates 1 or 2.
- m represents an integer of 1 to 12. If R 15, R 16, R 17 , R 18 and R u are present in plural number, they may be the same or different.
- An arylene group is an atomic group obtained by removing two hydrogen atoms from an aromatic hydrocarbon.
- the number of carbon atoms is about 6 to 60, preferably 6 to 20.
- examples of the aromatic hydrocarbon include those having a condensed ring, and those having two or more independent benzene rings or condensed rings bonded directly or via a group such as vinylene.
- arylene groups include phenylene groups (for example, the following formulas 1 to 3), naphthalenediyl groups (the following formulas 4 to 13), anthracene-diyl groups (the following formulas 14 to 19), biphenyl Two-way diyl group (Formulas 20 to 25 in the figure below), Yuichi Fenirujyl group (Formulas 26 to 28 in the figure below), a condensed ring compound (Formulas 29 to 35 in the figure below), a fluorene-diyl group ( Equations 36 to 38), stilbene-gil (Equations A to D in the figure below), and distilbenzyl (E and F in the figure below) are examples. Of these, a phenylene group, a biphenylene group, and a stilbenzyl group are preferred.
- the divalent heterocyclic group means an atomic group obtained by removing two hydrogen atoms from a heterocyclic compound, and usually has about 3 to 60 carbon atoms.
- a heterocyclic compound is an organic compound having a cyclic structure in which the elements constituting the ring are not only carbon atoms but also heteroatoms such as oxygen, sulfur, nitrogen, phosphorus, boron and arsenic. In the ring.
- Examples of the divalent heterocyclic group include the following.
- Divalent heterocyclic groups containing nitrogen as hetero atoms pyridine-diyl group (formulas 39 to 44 in the figure below), diazaphenylene group (formulas 45 to 48 in the figure below), quinolinediyl group (formula in the figure below) 49-63), quinoxalinedyl group (formulas 64-68 in the figure below), acridinediyl group (formulas 69-72 in the figure below), bipyridyldyl groups (formulas 73-75 in the figure below), and phenanthrolinezil Groups (Equations 76-78 in the figure below), etc.
- R is each independently a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group.
- the carbon atoms of the groups of formulas 1 to 125 may be replaced by nitrogen atoms, oxygen atoms or sulfur atoms, and the hydrogen atoms may be replaced by fluorine atoms.
- the A r 4 have A r, it may be a Ariren group or a divalent heterocyclic group contained in all of the materials which have been utilized as an EL luminescent material conventionally do not want to inhibit the triplet emission It is not limited as long as it is a monomer. These materials are disclosed, for example, in W099 / 12989 WO00 / 55927 W001 / 49769A1 WO01 / 49768A2, W098 / 06773 US5, 777, 070 W099 / 54385 WO00 / 46321 US6, 169, 163B1.
- Examples of the repeating unit represented by the above formula (2) include the repeating units represented by the following formulas (6), (7), (8), (9), (10) or (11).
- R 2 Represents an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryl group.
- n shows the integer of 0-4.
- R 2 I and R 2 2 each independently represent an alkyl group, an alkoxy group, an alkylthio group, Ariru group, Ariruokishi group, Ariruchio group, ⁇ reel alkyl group, Ariru Alkoxy group, arylalkylthio group, arylalkenyl group, arylalkynyl group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imine residue, amide group, acid It represents an imide group, a monovalent heterocyclic group, a lipoxyl group, a substituent ropoxyl group or a cyano group. 0 and ⁇ each independently represent an integer of 0 to 3. If R 2, which and R 2 2 are present in plural number, they may be the same or different. ]
- R 2 3 and R 2 6 are each independently an alkyl group, an alkoxy group, an alkylthio group, Ariru group, Ariruokishi group, ⁇ Li one thio group, ⁇ reel alkyl group, Ariru alkoxy group, ⁇ reel alkylthio group , Arylalkenyl, arylalkynyl, amino, substituted amino, silylyl, substituted silyl, halogen, acyl, acyloxy, imine, amide, acid imide, monovalent complex It represents a ring group, a propyloxyl group, a substituent propyloxyl group or a cyano group. q and r each independently represent an integer of 0-4.
- R 2 4 and R 2 5 each independently represent a hydrogen atom, an alkyl group, Ariru group, monovalent heterocyclic group, a force Rupokishiru group, a substituted force Rupokishiru group or Shiano group. If R 2 3 and 'R 2 6 are present in plural number, they may be the same or different. ]
- R 2 7 is an alkyl group, an alkoxy group, an alkylthio group, Ariru group, Ariru Okishi group, ⁇ Li one thio group, ⁇ reel alkyl group, ⁇ reel alkoxy group, Arirua alkylthio group, ⁇ reel alkenyl group, Arylalkynyl group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imine residue Amide group, acid imide group, monovalent heterocyclic group, propyloxyl group, propyloxyl group or cyano group.
- s represents an integer of 0 to 2.
- Each Ar 13 and Ar l4 are independently ⁇ arylene group, a divalent group having a divalent heterocyclic Kaemoto or metal complex structure. ss and tt each independently represent 0 or 1. X 4 represents a 0, S, SO, S_ ⁇ 2, S e, or Te,. When a plurality of R 27 are present, they may be the same or different. ]
- R 28 and R 29 each independently represent an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an arylalkenyl group , Arylalkynyl group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imine residue, amide group, acid imide group, monovalent heterocyclic group, carboxyl group And a substitution power of a lipoxyl group or a cyano group.
- t and u each independently represent an integer of 0-4.
- X 5 is ⁇ , S, S ⁇ 2 , Se, Te, N—R 3 . , Or S i R 3 , R 32 .
- X 6 and X 7 represents N or C one R 33 independently.
- R 3. , R 31 , R 32 and R 33 each independently represent a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group or a monovalent heterocyclic group. When a plurality of R 28 , R 2S and R 33 are present, they may be the same or different. ]
- R 34 and R 39 each independently represent an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, Aryl alkenyl group, aryl alkynyl Group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imine residue, amide group, acid imide group, monovalent heterocyclic group, lipoxyl group, substituted carboxyl group And a cyano group.
- V and w each independently represent an integer of 0-4.
- R 35 , R 36 , R 37, and R 38 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group, a lipoxyl group, a substitution lipoxyl group, or a cyano group.
- Ar 5 represents an arylene group, a divalent heterocyclic group or a divalent group having a metal complex structure. When a plurality of R 34 and R 39 are present, they may be the same or different. ]
- the structure represented by the above formula (2) includes a structure represented by the following formula (12).
- 15 "1" and 16 each independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group, and R 4 () represents an alkyl group, an alkoxy group, or an alkylthio group.
- R 4 () represents an alkyl group, an alkoxy group, or an alkylthio group.
- X is a single bond
- R 41 is independently a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an arylalkylalkenyl group
- R 41 is independently a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group
- Ar 15 and Ar 16 in each independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group.
- the trivalent aromatic hydrocarbon group refers to an atomic group obtained by removing three hydrogen atoms from a benzene ring or a condensed ring.
- adjacent bonds at ortho positions are represented by the general formulas (12), (12-1), (12-3) and (1 2-4). It represents that it is bonded to X and N shown, respectively.
- the above trivalent aromatic hydrocarbon group may have one or more substituents on the aromatic ring, and the substituent may be a halogen atom, an alkyl group, an alkyloxy group. , Alkylthio group, alkylamino group, aryl group, aryloxy group, arylthio group, arylamino group, arylalkyl group, arylalkyloxy group, arylalkylthio group, arylalkylamino group, acyl group, acyloxy group And an amide group, an imino group, a substituted silyl group, a substituted silyloxy group, a substituted silylthio group, a substituted silylamino group, a monovalent heterocyclic group, an arylalkenyl group, an arylalkynyl group or a cyano group.
- the number of carbon atoms constituting the ring of the trivalent aromatic hydrocarbon group is usually 6 to 60, preferably 6 ⁇ 20.
- a trivalent heterocyclic group refers to an atomic group obtained by removing three hydrogen atoms from a heterocyclic compound.
- a heterocyclic compound refers to an organic compound having a cyclic structure in which not only a carbon atom but also a heteroatom such as oxygen, sulfur, nitrogen, phosphorus, and boron are contained in a ring. Included within.
- Examples of the trivalent heterocyclic group include the following.
- the bonds in adjacent ortho positions are represented by general formulas (12), (12-1), (12-3) and (12-4). X and N, respectively.
- the above trivalent heterocyclic group may have one or more substituents on the ring, and examples of the substituent include an alkyl group, an alkoxy group, an alkylthio group, an aryl group, and an aryl group.
- Examples thereof include an atom, an acyl group, an acyloxy group, an imino group, an amide group, an imide group, a monovalent heterocyclic group, a lipoxyl group, a substitution lipoxyl group, and a cyano group.
- the number of carbon atoms constituting the ring of the trivalent heterocyclic group is usually 4 to 60, preferably 4 to 20.
- R and are each independently a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an aryl group.
- R ′′ independently represents a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group, a substituted silyl group, an acyl group, or a monovalent heterocyclic group.
- R 41 independently represents a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an arylalkenyl group, Reelalkynyl group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imino group, amide group, imide group, monovalent heterocyclic group, alkoxyl group, substituted R 41 represents a carbonyl group or a cyano group, and when there are a plurality of R 41 , they may be the same or different.
- R 4 have R 43, R 4 have R 45 and R 46 are each independently a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group
- R 42 , R 43 , R 44 , R 45 , R 46 and X represent the same meaning as described above.
- R 47 , R 48 , R 49 , R 51 and R 52 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an aryl group Alkoxy group, arylalkylthio group, arylalkenyl group, arylalkynyl group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imino group, amide group, imide group, It represents a monovalent heterocyclic group, a lipoxyl group, a substitution lipoxyl group or a cyano group.
- R 4 R 43 , R 44 , R 4 R 4 Ar 15 and Ar 16 represent the same meaning as described above.
- R 4Q , R 47 , RR 50 , R 51 , and R 52 represent the same meaning as described above. ]
- R 42 , R 43 , R 44 , R 45 , R 46 , R 47 , R 48 , R 49 , R 5 . , R 51 and R 52 have the same meaning as described above. ]
- the repeating unit represented by the above formula (3) includes a repeating unit represented by the following formula (13).
- Ar 6 , Ar and Ar 8 and Ar 9 each independently represent an arylene group or a divalent heterocyclic group.
- a ri. , A ri and A r, 2 are each independently an aryl group, Or a monovalent heterocyclic group.
- Ar i Ar 7 , Ar 8 , Ar 9 , and ⁇ ⁇ . May have a substituent.
- X and y each independently represent 0 or 1, and 0 ⁇ x + y ⁇ l.
- the arylene group is an atomic group obtained by removing two hydrogen atoms from an aromatic hydrocarbon and usually has a carbon number of Is about 6 to 60, preferably 6 to 20.
- the aromatic hydrocarbon includes those having a condensed ring, and those in which two or more independent benzene rings or condensed rings are bonded directly or via a group such as pinylene.
- arylene group examples include a phenylene group (for example, the above formulas 1 to 3), a naphthalenediyl group (the above formulas 4 to 13), and an anthracene-diyl group (for the formulas 14 to 19), biphenyl-2-diyl group (formulas 20 to 25 in the above figure), terphenyl-diyl group (formulas 26 to 28 in the above figure), condensed ring compound groups (formulas 29 to 35 in the above figure), fluorene-diyl group (Equations 36 to 38 in the above figure), stilbene dizil (Formulas A to D in the above figure), and distilbenzyl (Formulas E and F in the above figure).
- a phenylene group, a biphenylene group, and a stilbene-diyl group are preferred.
- the divalent heterocyclic group refers to the remaining atomic group obtained by removing two hydrogen atoms from a heterocyclic compound, and usually has about 3 to 60 carbon atoms.
- a heterocyclic compound is an organic compound having a cyclic structure in which the elements constituting the ring include not only carbon atoms but also heteroatoms such as oxygen, sulfur, nitrogen, phosphorus, boron, and arsenic in the ring. Included in.
- Examples of the divalent heterocyclic group include the following.
- a group having a fluorene structure containing silicon, nitrogen, selenium, etc. as a hetero atom (formulas 79 to 93 in the above figure).
- 5-membered heterocyclic groups containing silicon, nitrogen, sulfur, selenium and the like as a hetero atom (Formulas 94 to 98 in the above-mentioned figure).
- R 53 , R 54 and R 55 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group; Group, aryl alkenyl group, aryl alkynyl group, amino group, substituted amino group, silyl group, substituted silyl group, halogen atom, acyl group, acyloxy group, imino group, amide group, imide group, monovalent complex It represents a ring group, a propyloxyl group, a propyloxyl group or a cyano group.
- R 55 is an alkyl group, an alkoxy group, an aryl group An aryloxy group, an arylalkyl group, an arylalkoxy group and a substituted amino group are preferred.
- the substituted amino group is preferably a diarylamino group, and more preferably a diphenylamino group.
- Y is an S atom or a ⁇ atom.
- Y is an S atom or a ⁇ atom.
- An atom, an acyl group, an acyloxy group, an imine residue, an amide group, an acid imide group, a monovalent heterocyclic group, and a propyloxyl group have the same meaning.
- the alkyl group may be linear, branched or cyclic, and usually has about 1 to 20 carbon atoms, and preferably has 3 to 20 carbon atoms. Specific examples thereof include a methyl group, an ethyl group, and a propyl group.
- the alkoxy group may be linear, branched or cyclic, and usually has about 1 to 20 carbon atoms, preferably 3 to 20 carbon atoms, and specific examples thereof include a methoxy group, an ethoxy group, Propyloxy, i-propyloxy, butoxy, i-butoxy, t-butoxy, pentyloxy, hexyloxy, cyclohexyloxy, heptyloxy, octyloxy, 2-ethylhexyloxy, nonyloxy, Decyloxy, 3,7-dimethyloctyloxy, lauryloxy, trifluoromethoxy, pentafluoroethoxy, perfluorobutoxy, perfluorohexyl, perfluorooctyl , Methoxymethyloxy group, 2-methoxyethyloxy group and the like, pentyloxy , To Kishiruokishi group, Okuchiruokishi group, 2
- the alkylthio group may be linear, branched or cyclic, and usually has about 1 to 20 carbon atoms, preferably 3 to 20 carbon atoms. Specific examples thereof include a methylthio group, an ethylthio group, and a propylthio group.
- the aryl group has a carbon number of usually about 6 to ⁇ 0, preferably 7 to 48.
- a phenyl group, a C 1 , a C 1 -alkoxyphenyl group (where ⁇ is likewise shown. below that 1 is 2.), ⁇ 0 1 2 alkylphenyl group, 1-naphthyl, 2-naphthyl, 1-anthracenyl group, 9 one anthracenyl Le group, pen evening etc. fluorophenyl group and the like, ⁇ ⁇ 1 2 alkoxy phenylpropyl group.
- a 2-alkylphenyl group is preferred.
- the aryl group is an atomic group obtained by removing one hydrogen atom from an aromatic hydrocarbon.
- the aromatic hydrocarbons include those having a condensed ring, and those in which two or more independent benzene rings or condensed rings are directly bonded via a group such as vinylene.
- ⁇ specifically as ⁇ 1 2 alkoxy, methoxy, ethoxy, Puropiruokishi, i one Puropiruokishi, butoxy, i Putokishi, t-butoxy, Penchiruokishi, the carboxymethyl Ruokishi, Kishiruokishi cyclohexane, Hepuchiruokishi, Okuchiruokishi, the 2- Echiru Xyloxy, nonyloxy, decyloxy, 3,7-dimethyloctyloxy, lauryloxy and the like are exemplified.
- alkylphenyl group examples include methylphenyl, ethylphenyl, dimethylphenyl, propylphenyl, mesityl, methylethylphenyl, i-propylphenyl, butylphenyl, and i-butylphenyl.
- the aryloxy group usually has about 6 to 60 carbon atoms, preferably 7 to 48 carbon atoms. Specific examples thereof include a phenoxy group, and. Alkoxy phenoxyethanol group, C I ⁇ C 1 2 alkyl Rufuenokishi group, 1 one Nafuchiruokishi group, 2 _ Nafuchiruokishi group, such as a pen evening Furuorofe Niruokishi groups and the like, C, ⁇ C 1 2 alkoxy phenoxyethanol group, C, ⁇ C 12 alkyl phenoxy groups are preferred.
- alkoxy examples include methoxy, ethoxy, propyloxy, i-propyloxy, 'butoxy, i-butoxy, t-butoxy, pentyloxy, hexyloxy, cyclohexyloxy, heptyloxy, octyloxy, 2-ethylhexylreoxy, Examples include nonyloxy, decyloxy, 3,7-dimethyloctyloxy, lauryloxy, and the like.
- C, to C, 2 alkylphenoxy group examples include methylphenoxy group, ethylphenoxy group, dimethylphenoxy group, propylphenoxy group, 1,3,5-trimethylphenoxy group and methylethyl.
- ⁇ Li one thio group usually about 6 to 60 carbon atoms, preferably 7 to 48, as its ingredients thereof embodiment, phenylene thio group, C, -C 12 Arukokishifue two thio group, C, ⁇ C 12 Al Kirufue two thio group, a 1-naphthylthio group, 2-naphthylthio group, a pen evening Furuorofe two thio groups and the like, C! C Arukokishifue two thio groups, ⁇ , ⁇ 12 alkyl phenylene thio group are preferable.
- the arylalkyl group usually has a carbon number? ⁇ 60 or so, preferably? ⁇ A 48, specific examples of that are phenyl one C, -C 12 alkyl group, C, -C 12 Arukokishifue two Lu ⁇ to 0 12 alkyl group, ⁇ ⁇ .
- C, -C 12 alkylphenyl C, -C, 2 alkyl groups are preferred.
- arylalkoxy groups usually have carbon atoms? ⁇ 60 or so, preferably? And specific examples thereof include phenylmethoxy, phenylethoxy, phenylbutoxy, phenylpentyloxy, phenylhexyloxy, phenylheptoxy, phenyloxycyloxy and other phenyl C, ⁇ C 12 alkoxy group, C, ⁇ C 12 alkoxyphenyl-C, ⁇ C, 2 alkoxy group, ⁇ C, 2 alkylphenyl C, ⁇ C, 2 alkoxy group, 1-naphthyl- ⁇ ⁇ ⁇ alkoxy group, 2 etc.
- Nafuchiru ⁇ Ji alkoxy groups are exemplified, ⁇ ⁇ Ji ⁇ Turkey hydroxyphenyl over ⁇ ⁇ Ji ⁇ Arukokishi group, C, -C 12 ⁇ Rukirufue two Lu ⁇ ⁇ 12 alkoxy group are preferable.
- one Ruarukiruchio group is usually about 7 to 60 carbon atoms, preferably from 7 to 48, and specific examples thereof include phenylene Lou d-C 12 alkylthio group, Ji, ⁇ . , 2 Arukokishifu Eniru C, -C, 2 alkylthio group, C, -C, 2 alkylphenyl - C, -C, 2 alkyl Chiomoto, 1 Nafuchiru ⁇ , ⁇ 12 alkylthio groups, 2-naphthyl - ⁇ Examples thereof include ⁇ alkylthio group and the like, and ⁇ - ⁇ alkoxyphenyl- ⁇ -alkylalkyl group, C ',-C, 2- alkylphenyl C, -C, 2- alkylthio groups are preferred.
- the aryl alkenyl group usually has about 7 to 60 carbon atoms, preferably? ⁇ Is 48. Specific examples thereof include a phenylene Lou ⁇ 1-2 alkenyl group, C! -C 12 Arukokishifue two Lou C 2 ⁇ C, 2 alkenyl group, C, ⁇ C, 2 Arukirufue two Lou C 2 - C, 2 alkenyl group, 1 one-naphthyl -C 2 - C 12 alkenyl group, 2-naphthyl - such as C 2 -C 12 alkenyl groups and the like, ⁇ ⁇ Ji ⁇ Turkey hydroxyphenyl over ⁇ ⁇ Ji Arukeniru group, C 2 ⁇ C 12 alkyl Rufueniru - C, -C, 2 alkenyl groups are preferred.
- ⁇ reel alkynyl group is usually about 7 to 60 carbon atoms, preferably 7 to 48, and specific examples thereof include phenyl one C 2 -C 12 alkynyl group, ⁇ , ⁇ ] 2 Arukokishifue two Lou C 2 ⁇ C, 2 alkynyl group, C, ⁇ C, 2 Arukirufue two Lou C 2 ⁇ C, 2 alkynyl group, 1-Nafuchiru C 2 -C, 2 alkynyl group, 2 one-naphthyl - C 2 -C, 2 alkynyl group etc. are exemplified, C, ⁇ C 12 Arukokishifue two Lou C 2 -C 12 alkynyl group, C, -C 12 alkyl Rufue two Lou Cz C) 2 alkynyl group.
- the substituted amino group refers to an amino group substituted with one or two groups selected from an alkyl group, an aryl group, an arylalkyl group or a monovalent heterocyclic group, and the alkyl group, aryl group, The arylalkyl group or the monovalent heterocyclic group may have a substituent.
- the substituted amino group usually has about 1 to 60, preferably 2 to 48 carbon atoms, not including the carbon number of the substituent, and specific examples thereof include a methylamino group, a dimethylamino group, an ethylamino group, and a ethylamino group.
- Eniru. 1 to. 12 Arukiruamino group, di (C, -C 12 alkoxy phenylalanine - C, ⁇ C 12 alkyl) amino group, di (C, -C 12 Arukirufu Enyl-2alkyl) 'amino group, 1-naphthyl-C! Cualkylamino group, 2-naphthyl- 2- alkylamino group and the like.
- Examples of the substituted silyl group include a silyl group substituted with one, two or three groups selected from an alkyl group, an aryl group, an arylalkyl group and a monovalent heterocyclic group.
- the substituted silyl group usually has about 1 to 60 carbon atoms, preferably 3 to 48 carbon atoms.
- the alkyl group, aryl group, arylalkyl group or monovalent heterocyclic group may have a substituent.
- substituted silyl group examples include a trimethylsilyl group, a triethylsilyl group, a tripvilsilyl group, a tri-i-propylsilyl group, a dimethyl-i-propylsilyl group, a diethyl-i-propylsilyl group, a t-butylsilyldimethylsilyl group, and a pentyldimethylsilyl group.
- halogen atom examples include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom.
- a syl group usually has about 2 to 20 carbon atoms, preferably 2 to 18 carbon atoms. Examples thereof include an acetyl group, a propionyl group, a butyryl group, an isoptyryl group, a bivaloyl group, a benzoyl group, a trifluoroacetyl group, and a pentafluorobenzoyl group.
- the acyloxy group usually has about 2 to 20 carbon atoms, preferably 2 to 18 carbon atoms. Specific examples thereof include an acetooxy group, a propionyloxy group, a petit.riloxy group, an isobutylyloxy group, and a bivaloyloxy group. , Benzoyloxy group, trifluoroacetyl And a pentafluorobenzoyloxy group.
- examples thereof include aldimines, ketimines, and hydrogen atoms on these N substituted with alkyl groups.
- a residue obtained by removing one hydrogen atom from the compound which usually has about 2 to 20 carbon atoms, and preferably 2 to 18 carbon atoms.
- groups represented by the following structural formulas are exemplified.
- the amide group usually has about 2 to 20 carbon atoms, preferably 2 to 18 carbon atoms.
- Examples of the amide group include a formamide group, an acetoamide group, a propioamide group, a ptyramide group, a benzamide group, and a trifluoroacetamide group.
- Examples of the acid imide group include a residue obtained by removing a hydrogen atom bonded to the nitrogen atom from the acid imide, which usually has about 2 to 60 carbon atoms, and preferably 2 to 48 carbon atoms. Specifically, the following groups are exemplified.
- the monovalent heterocyclic group means an atomic group obtained by removing one hydrogen atom from a heterocyclic compound, and usually has about 4 to 60, preferably 4 to 20 carbon atoms.
- the carbon number of the heterocyclic group does not include the carbon number of the substituent.
- a heterocyclic compound is defined as an organic compound having a cyclic structure in which the ring is formed not only by carbon atoms but also by hetero atoms such as oxygen, sulfur, nitrogen, phosphorus, and boron. What is included in.
- thienyl group, C, -C 1 2 alkylthio Eniru group, a pyrrolyl group, a furyl group, a pyridyl group, ⁇ ⁇ ⁇ 1 2 alkylpyridyl group, piperazinyl 'lysyl group, quinolyl group, etc. are exemplified isoquinolyl group Is a chenyl group, ⁇ . ⁇ Alkylenyl groups, pyridyl groups, C, -C, 2 alkylpyridyl groups are preferred.
- propyloxyl group examples include an alkyl group, an aryl group, an arylalkyl group, and a propyloxyl group substituted with a monovalent heterocyclic group, which usually has about 2 to 60 carbon atoms, preferably 2 to 4 carbon atoms. Specific examples thereof include methoxycarbonyl group, ethoxycarbonyl group, propoxycarbonyl group, i-propoxycarbonyl group, butoxycarbonyl group, i-butoxycarbonyl group, t-butoxycarbonyl group, and pentyloxy.
- the alkyl group, aryl group, arylalkyl group or monovalent heterocyclic group may have a substituent.
- the carbon number of the ropoxyl group does not
- the group containing alkyl may be any of linear, branched or cyclic, or a combination thereof. If not linear, for example, an isoamyl group, a 2-ethylhexyl group, 3,7 Jimechiruokuchiru group, cyclohexyl group, 4 - C, such as cyclohexyl group and the like to the -C 1 2 alkyl cycloalkyl. Further, the tips of two alkyl chains may be linked to form a ring.
- methyl groups / methylene groups of the alkyl may be replaced by groups containing a hetero atom or by one or more fluorine-substituted methyl / methylene groups, and the hetero atoms thereof may be , An oxygen atom, a sulfur atom, a nitrogen atom and the like.
- substituents when an aryl group or a heterocyclic group is contained in a part thereof, they may further have one or more substituents.
- Ar 2 , Ar 3, and Ar 4 preferably have a substituent, and preferably have at least one cyclic or long-chain alkyl group or alkoxy group.
- Examples thereof include an isoamyloxy group, a hexyloxy group, an octyloxy group, a 2-ethylhexyloxy group, a decyloxy group, and a 3,7-dimethyloctyloxy group.
- two substituents may be linked to form a ring.
- some carbon atoms of the alkyl may be replaced by a group containing a hetero atom, and examples of the hetero atom include an oxygen atom, a sulfur atom, and a nitrogen atom.
- the terminal group of the polymer compound used in the present invention may be protected with a stable group, since if the polymerization active group remains as it is, the light emitting characteristics and lifetime of the device may be reduced. .
- Those having a conjugate bond continuous with the conjugate structure of the main chain are preferable, and examples thereof include a structure bonded to an aryl group or a heterocyclic group via a carbon-carbon bond.
- the polymer compound used in the present invention may be a random, block or graft copolymer, or a polymer having an intermediate structure between them, for example, a random copolymer having a block property. Is also good. From the viewpoint of obtaining a polymer compound having a high quantum yield, a random copolymer having block properties or a block or graft copolymer is preferable to a completely random copolymer. If the main chain is branched and has three or more terminal parts, ⁇ dendrimers are also included.
- the polymer compound used in the present invention preferably has a number average molecular weight in terms of polystyrene of 10 3 to 10 8 . It is more preferably 10 4 to 10 7 .
- a compound having a plurality of reactive substituents which is a monomer
- an organic solvent if necessary, and for example, an alkali or a suitable catalyst is used. It can be produced at a temperature from the melting point to the boiling point of the organic solvent.
- an alkali or a suitable catalyst for example, “Organic Reactions”, Vol. 14, 270-490, John Wiley & Sons, I'11, 1965, “Orgaic Reactions” Nick Synthes ", Collective Volume 6 (Co 11 effective Volume VI), 407-411, John Wiley and Sons (Inc.), 1988, Chemical Review (Chem. Rev.), Vol. 95, p.
- the polymer can be produced by using a known condensation reaction as the method for condensation polymerization.
- a method described in JP-A-5-220355 may be used.
- the polymer compound of the present invention forms a triple bond in the main chain by condensation polymerization, for example, a .Hecck reaction can be used.
- a method of polymerizing the corresponding monomer by a Suzuki coupling reaction for example, a method of polymerizing by a Grignard reaction, a method of polymerizing by a Ni (0) complex, F a method of polymerization with an oxidizer such as e C 1 3, electrochemically methods oxidative polymerization, a method by decomposition of an intermediate polymer having a suitable leaving group, it is exemplified.
- the reactive substituent of the raw material monomer of the polymer compound used in the present invention is a Hagen atom, an alkylsulfonate group, an arylsulfonate group or an arylalkylsulfonate group, a nickel zero-valent complex
- a production method in which condensation polymerization is carried out in the presence is preferred.
- Raw material compounds include dihalogenated compounds, bis (alkylsulfonate) compounds, bis (arylsulfonate) compounds, bis (arylalkylsulfonate) compounds or halogen-alkylsulfonate compounds, and halogen-arylsulfonate compounds Compounds, halogen-aryl alkylsulfonate compounds, alkylsulfonate-arylsulfonate compounds, alkylsulfonate-arylalkylsulfonate compounds, and arylsulfonate-arylalkylsulfonate compounds.
- the reactive substituent of the raw material monomer of the polymer compound used in the present invention may be a halogen atom, an alkylsulfonate group, an arylsulfonate group, an arylalkylsulfonate group, a boric acid group, or a borate ester.
- the combination of the raw material compounds include a combination of a dihalogenated compound, a bis (alkylsulfonate) compound, a bis (arylsulfonate) compound or a bis (arylalkylsulfonate) compound and a diboric acid compound or a diboric ester compound. Is mentioned.
- halogen monoborate compounds halogen monoborate compounds, halogen monoborate compounds, alkyl sulfonate monoborate compounds, alkyl sulfonate-borate ester compounds, aryl sulfonate monoborate compounds, aryl sulfone monotoborate compounds, aryl alkyl sulfonate monoesters Boric acid compounds, arylalkylsulfonate-boric acid compounds, arylalkylsulfonate-boric acid ester compounds.
- the organic solvent varies depending on the compound used and the reaction used, it is generally preferable that the solvent used be sufficiently deoxygenated and the reaction proceed in an inert atmosphere in order to suppress side reactions. In addition, it is preferable to similarly perform a dehydration treatment. However, this is not the case in the case of a reaction in a two-phase system with water such as the Suzuki force coupling reaction.
- an alkali or a suitable catalyst is appropriately added. These may be selected according to the reaction used. It is preferable that the alkali or the catalyst be sufficiently soluble in the solvent used for the reaction.
- the reaction solution is stirred under an inert atmosphere such as argon or nitrogen while slowly adding the solution of the catalyst or the solution of the catalyst or the solution of the catalyst. For example, a method of slowly adding a reaction solution to the mixture.
- the polymer compound used in the present invention is used in a polymer LED or the like, its purity affects the performance of the device such as light emission characteristics, so that the monomer before polymerization is subjected to distillation, sublimation purification, recrystallization, etc. It is preferred to polymerize after purifying by the method. After the polymerization, it is preferable to carry out a purification treatment such as reprecipitation purification or fractionation by chromatography.
- the compound that emits light from a triplet excited state (triplet light-emitting compound) used in the composition of the present invention will be described.
- the compound which emits light from the triplet excited state includes, for example, phosphorescence and a complex which emits fluorescence in addition to the phosphorescence.
- examples of the complex compound include a (triplet light-emitting complex compound), for example, a metal complex compound which has been conventionally used as a low-molecular EL light-emitting material.
- a (triplet light-emitting complex compound) for example, a metal complex compound which has been conventionally used as a low-molecular EL light-emitting material.
- These are, for example, Nature, (1998), 395, 151, Appl.Phys. Lett. (1999), 75 (1), 4, Proc.SPIE-Int.Soc.Opt.Eng. (2001), 4105 ( Organic Light-Emitting
- the central metal of the triplet light-emitting complex compound is usually an atom having an atomic number of 50 or more, and the complex has a spin-orbit interaction and causes intersystem crossing between the singlet state and the triplet state. Metal.
- Examples of the central metal of the triplet luminescent complex compound include, for example, rhenium, iridium, osmium, scandium, yttrium, platinum, gold, and lanthanoids, terbium, thulium, dysprosium, samarium, praseodymium, gadolinium. And iridium, platinum, gold and europium are preferred, iridium, platinum and gold are particularly preferred, and iridium is most preferred.
- Examples of ligands of the triplet luminescence complex conjugate include 8-monoquinolinol and derivatives thereof, benzoquinolinol and derivatives thereof, 2-phenyl-pyridine and derivatives thereof, 2-phenylbenzothiazole and Derivatives, 2-phenylbenzoxazole and its derivatives, porphyrins and its derivatives, and the like can be mentioned.
- triplet light emitting complex examples include the following.
- R is independently a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an alkylsilyl group, an alkylamino group, an aryl group, an aryloxy group, an arylalkyl group, an arylalkoxy group, or an aryl group.
- an alkyl group or an alkoxy group is preferable, and it is preferable that the shape of the repeating unit including the substituent is less symmetric.
- triplet luminescent complex compound examples include a structure represented by the following formula (15).
- K represents a ligand containing at least one atom bonded to M selected from a nitrogen atom, an oxygen atom, a carbon atom, a sulfur atom and a phosphorus atom, a halogen atom or a hydrogen atom.
- O 1 represents an integer of 0 to 5
- ml represents an integer of 1 to 5.
- the ligand containing one or more atoms bonded to M selected from a nitrogen atom, an oxygen atom, a carbon atom, a sulfur atom and a phosphorus atom, an alkyl group, an alkoxy group, an acyloxy group, an alkylthio group , Alkylamino group, aryl group, aryloxy group, arylthio group, arylamino group, arylalkyl group, arylalkoxy group, arylalkylthio group, arylalkylamino group, sulfonate group, cyano group, heterocyclic ring Ligands, carbonyl compounds, ethers, amines, imines, phosphines, phosphites, and sulfides.
- the bond of this ligand to M may be a coordinate bond or a covalent bond. Further, a polydentate ligand obtained by combining these may be used.
- the aralkyl group may be linear, branched or cyclic, and may have a substituent. Normal carbon number; About 20; specifically, methyl group, ethyl group, propyl group, i-propyl group, butyl group, i-butyl group, t-butyl group, pentyl group, hexyl group, cyclohexyl group , Heptyl, octyl, 2-ethylhexyl, nonyl, decyl, 3,7-dimethyloctyl, lauryl, trifluoromethyl, pentafluoroethyl, perfluorobutyl, perfluorinated Examples include a hexyl group and a perfluorooctyl group, and a pentyl group, a hexyl group, an octyl group, a 2-ethylhexyl group, a decyl group, and
- the alkoxy group may be linear, branched or cyclic, may have a substituent, and usually has about 1 to 20 carbon atoms.
- the acyloxy group usually has about 2 to 20 carbon atoms, and specific examples thereof include an acetyloxy group, a trifluoroacetyloxy group, a propionyloxy group, and a benzoyloxy group.
- the sulfonoxy group include a benzenesulfonoxy group, a p-toluenesulfonoxy group, a methanesulfonoxy group, an ethanesulfonoxy group, and a trifluoromethanesulfonoxy group.
- the alkylthio group may be straight-chain, branched or cyclic, may have a substituent, and usually has about 1 to 20 carbon atoms. Specific examples thereof include a methylthio group, an ethylthio group, Propylthio, i-propylthio, butylthio, i-butylthio, t-butylthio, pentylthio, hexylthio, cyclohexylthio, heptylthio, octylthio, 2-ethylhexylthio, nonylthio , Decylthio, 3,7-dimethyloctylthio, laurylthio, trifluoromethylthio, pentylthio, hexylthio, octylthio, 2-ethylhexylthio, decylthio, 3 The 7,7-dimethyloctylthio
- the alkylamino group may be linear, branched or cyclic, may be a monoalkylamino group or a dialkylamino group, and usually has about 1 to 40 carbon atoms. Specific examples thereof include a methylamino group.
- the aryl group may have a substituent, and usually has about 3 to 60 carbon atoms. Specific examples thereof include a phenyl group, a C 2, and an alkoxyphenyl group (di-C i 2 Represents that it has 1 to 12 carbon atoms. The same applies to the following.), ⁇ Ci 2 alkylphenyl group, 1-naphthyl group, 2-naphthyl group, pentafluorophenyl group, pyridyl group, pyridazinyl group , pyrimidyl group, Birajiru group, etc. triazyl group and the like, C -C alpha 2 alkoxy phenylalanine group, is C 1 ⁇ C X 2 alkylphenyl group.
- the aryloxy group may have a substituent on the aromatic ring, and usually has about 3 to 60 carbon atoms. Specific examples thereof include a phenoxy group and a C i to C X2 alkoxy phenoxy group. , Di-C i 2 alkylphenoxy group, 1-naphthyloxy group, 2-naphthyloxy group, pentafluorophenyloxy group, pyridyloxy group, pyridazinyloxy group, pyrimidyloxy group, virazyloxy group, triazyloxy group For example, C i ⁇ C! A 2 alkoxy phenoxy group and a —C i 2 alkyl phenoxy group are preferred.
- 'Ariruchio group may have a substituent on the aromatic ring, usually 3-6 0 extent carbon atoms, and specific examples thereof include phenylene thio group, C i ⁇ E 2 alkoxy Phenylthio group, C a -C i 2 alkyl phenylthio group, 1-naphthylthio group, 2-naphthylthio group, pentafluorophenylthio group, pyridylthio group, pyridyl'dinylthio group, pyrimidylthio group, pyrazylthio group, triazylthio group etc. groups can be exemplified, ⁇ d 2 alkoxy 'Shifue two thio groups. ⁇ -D2 alkylphenylthio groups are preferred.
- the arylamino group may have a substituent on the aromatic ring, and usually has about 3 to 60 carbon atoms. Specific examples thereof include a phenylamino group, a diphenylamino group,
- ⁇ reel alkyl group may have a substituent state, and are usually about 7 to 60 carbon atoms, specific examples as is phenylene Lou C ⁇ Ci 2 alkyl group, C, ⁇ Ci 2 alkoxy Shifue two Lou C ⁇ 0 ⁇ 2 alkyl groups, Ci ⁇ Ci 2 Arukirufue two Lou Ci ⁇ .
- Examples include a 2- alkyl group, a 1-naphthyl-Ci-Ci 2 alkyl group, a 2-naphthyl-C X 27 alkyl group, and a C i -C 2 alkoxyphenyl Ci-d 2 alkyl group.
- Cj to d 2 Arukirufue two Lu ⁇ C X 2 is preferably an alkyl group.
- the arylalkoxy group may have a substituent, and usually has about 7 to 60 carbon atoms. Specific examples thereof include phenyl d to C X2 alkoxy group, and Ci 2 alkoxyphenyl group. d ⁇ Ci 2 alkoxy groups, ⁇ Ci 2 Arukirufue two Lu ⁇ C 1 2 alkoxy group, 1 one Nafuchiru Ci ⁇ Ci 2 alkoxy groups, such as 2-Nafuchiru ⁇ to d 2 alkoxy groups and the like, C 2 Arukokishifue two Ru d to C X 2 alkoxy group and C to Ci 2 alkylphenyl —C X 2 alkoxy group are preferred.
- ⁇ reel alkyl thio group may have a substituent, and the carbon number is usually about 7 to 60 ', and specific examples thereof include phenylene Lou d ⁇ Ci a alkoxy group, ⁇ d 2 ⁇ Rukokishifueniru - d to d 2 alkoxy group, Ci to Ci 2 alkyl phenyl -d 2 alkoxy group, 1-naphthyl—Ci to Ci 2 alkoxy group, 2-naphthyl-C 1 to Ci 2 alkoxy group, and the like, and Ci to Ci 2 Alkoxy fueneru d ⁇ C
- ⁇ reel alkylamino group has usually about 7 to 60 carbon atoms, and specific examples thereof include phenyl -. ⁇ 2 Arukirua amino group, ⁇ ⁇ 12 ⁇ Turkey hydroxyphenyl over 0
- 12 alkylamino group ⁇ 1-0 12 ⁇ Le kills phenyl - ⁇ 1.
- 12 alkylamino groups di ( ⁇ ⁇ 0 12 Arukokishifue two Lu ⁇ ⁇ 12 alkyl) amino group, di ( ⁇ , ⁇ 12 alkyl Rufueniru - ⁇ Ji ⁇ alkyl) amino group, 1-naphthyl - C, -C 12 alkylamino group, 2- naphthyl - such as 2 alkylamino groups and the like, etc. are exemplified, C, -C 12 alkylphenyl - ⁇ Cu alkylamino group, di ( ⁇ Ji Arukirufue two Lou ⁇ , 0 12 alkyl) amino group.
- sulfonate group examples include a benzenesulfonate group, a p-toluenesulfonate group, a methanesulfonate group, an ethanesulfonate group, and a trifluoromethanesulfonate group.
- the heterocyclic ligand is a ligand composed of a heterocyclic ring such as a pyridine ring, a pyrrole ring, a thiophene ring, a oxazole, or a furan ring, or a benzene ring.
- 2- (paraphenylphenyl) pyridine 7-bromobenzo [h] quinoline, 2- (4-thiophen-1-yl) pyridine, 2- (4-phenylthiophene-2-yl) pyridine, 2 —Phenylpenzoxazole, 2- (paraphenylphenyl) benzoxazole, 2-phenylphenylazothiazole, 2- (paraphenylphenyl) benzothiazole, 2- (benzothiophen-1-yl) pyridine , 1, 10—Fenant mouth phosphorus,
- Examples thereof include 2,3,7,8,12,13,17,18-octaethyl-21H, 23H-porphyrin, which may be a coordination bond or a covalent bond.
- Examples of the carbonyl compound are those that coordinate with M by an oxygen atom, and include, for example, carbon monoxide, ketones such as acetone and benzophenone, and diketones such as acetylacetone and acenaphthoquinone.
- Ethers are those that coordinate with M through an oxygen atom, and include, for example, dimethyl ether, getyl ether, tetrahydrofuran, 1,2-dimethoxyethane, and the like.
- the amines are those that coordinate with M at the nitrogen atom, such as monoamines such as trimethylamine ', triethylamine, triptylamine, tribenzylamine, triphenylamine, dimethylphenylamine, and methyldiphenylamine.
- monoamines such as trimethylamine ', triethylamine, triptylamine, tribenzylamine, triphenylamine, dimethylphenylamine, and methyldiphenylamine.
- 1,1,2,2-tetramethylethylenediamine 1,1,2,2-tetraphenylethylenediamine
- 1,1,2,2-tetramethyl-0-phenylenediamine Jiamin is exemplified You.
- imine examples include those that coordinate with M at the nitrogen atom, and include, for example, dimine such as benzylidene benzylidene ethylene diamine, dibenzylidene-1-o-phenylenediamine, and 2,3-bis (anilino) butane. Is done.
- the phosphine is one that coordinates with M at the phosphorus atom, and examples thereof include triphenylphosphine, diphenylphosphinoethane, and diphenylphosphinopropane.
- the phosphite is one that coordinates with M at a phosphorus atom, and examples thereof include trimethyl phosphite, triethyl phosphite, and triphenyl phosphite.
- sulfide examples include those that coordinate with M at a sulfur atom, and include, for example, dimethyl sulfide, getyl sulfide, diphenyl sulfide, and thioanisole.
- M represents a metal atom having an atomic number of 50 or more and capable of causing intersystem crossing between a singlet state and a triplet state in the present compound by spin-orbit interaction.
- the atoms represented by M include rhenium, osmium, iridium, platinum, gold, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, and terbium.
- '' And dysprosium atoms preferably rhenium, osmium, iridium, platinum, gold, samarium, europium, gadolinium, terbium, and dysprosium atoms. More preferably, they are an iridium atom, a platinum atom, a gold atom, and a europium atom.
- H represents a ligand containing at least one atom selected from a nitrogen atom, an oxygen atom, a carbon atom, a sulfur atom and a phosphorus atom as an atom bonded to M.
- the ligand containing at least one atom selected from the group consisting of nitrogen, oxygen, carbon, sulfur and phosphorus as the atom bonded to M is the same as that exemplified for K.
- R independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy 'group, an alkylthio group, an alkylamino group, an alkylsilyl group, an aryl group, an aryloxy group, an arylthio group, an arylamino group, an arylsilyl group, Arylalkyl group, arylalkoxy group, arylalkylthio group, arylalkylamino group, arylalkylsilyl group, acyl group, acyloxy group, imine residue, amide group, aryl It represents an alkenyl group, an arylalkynyl group, a cyano group, or a monovalent heterocyclic group. R may combine with each other to form a ring. In order to increase the solubility in a solvent, at least one of R preferably contains a long-chain alkyl group.
- halogen atom examples include fluorine, chlorine, bromine and iodine.
- the alkylsilyl group may be linear, branched or cyclic, and usually has about 1 to 60 carbon atoms. Specifically, a trimethylsilyl group, a triethylsilyl group, a tripropylsilyl group, a tri-i-propylsilylyl group Dimethyl i-Propilicilyl group, Getizole-i-Provylsilyl group, t-butylsilyldimethylsilyl group, pentyldimethylsilyl group, hexyldimethylsilyl group, heptyldimethylsilyl group, octyldimethylsilyl group, 2-ethyl Hexyldimethylsilyl group, nonyldimethylsilyl group, decyldimethylsilyl group, 3,71-dimethyloctyl-dimethylsilyl group, lauryldimethylsilyl group, etc., and pen
- the arylsilyl group may have a substituent on the aromatic ring, usually has about 3 ′ to 60 carbon atoms, and includes a triphenylsilyl group, a tri-P-xylylsilyl group, a tribenzylsilyl group, Examples thereof include a diphenylmethylsilyl group, a t-butyldiphenylsilyl group, and a dimethylphenylsilyl group.
- the arylalkylsilyl group usually has about 7 to 6 ° carbon atoms.
- the acryl group usually has about 2 to 20 carbon atoms.
- the acyloxy group usually has about 2 to 20 carbon atoms.
- Specific examples include an acetooxy group, a propionyloxy group, a petyryloxy group, an isoptyryloxy group, a pivaloyloxy group, a benzoyloxy group, and a trifluorofluoroacetyloxy group. And a pentafluorobenzoyloxy group.
- the amide group usually has about 2 to 20 carbon atoms, and specifically includes a formamide group, an acetamido group, a propioamide group, a ptyramide group, a benzamide group, a trifluoroacetamide group, a pentafluorobenzamide group, and a diformamide group.
- the ⁇ reel alkenyl group has a carbon number of usually about 7 to 60, specifically, full Eniru - d ⁇ Ci 2 alkenyl groups, to d 2 Arukokishifue two Lu ⁇ d 2 alkenyl groups, Ci ⁇ Ci 2 Alkyl phenyl-Ci 2 alkenyl group, 1-naphthyl-C-Ci 2 alkenyl group, 2-naphthyl-Ci-Ci 2 alkenyl group, etc. are shown, and C-Ci 2 alkoxy phenyl-Ci 2 alkenyl group And C 1 -d 2 alkylphenyl- ⁇ ⁇ 2- alkenyl groups are preferred.
- the aryl alkynyl group usually has about 7 to 60 carbon atoms, and specifically includes a phenyl-d to Ci 2 alkynyl group, a to d 2 alkoxyphenyl group, a Ci 2 alkynyl group, and a C to Ci 2 alkyl phenyl group.
- a monovalent heterocyclic group is an atomic group obtained by removing one hydrogen atom from a heterocyclic compound,
- the number of carbon atoms is usually 4-6 0 degree, specifically, thienyl group, -C i 2 alkylthio Eniru group, Piroririre group, a furyl group, a pyridyl group, C 1 ⁇ 2 alkylpyridyl groups and the like, thienyl group, C, to d 2 alkyl chain group, a pyridyl group, the d ⁇ C X 2 alkylpyridyl group are preferable.
- H bonds to M at at least one nitrogen atom or carbon atom it is preferable that H bonds to M at polydentate.
- H is more preferably represented by the following formula (H-1) or (H-2).
- R 5 8 ⁇ R 6 5 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an alkylamino group, an alkylsilyl group, Ariru group, Ariru Okishi group, ⁇ Li one Lucio Group, arylamino group, arylsilyl group, arylalkyl group, arylalkoxy group, arylalkylthio group, arylalkylamino group, arylalkylsilyl group, acyl group, acyloxy group, imine residue, amide group , An arylalkenyl group, an arylalkynyl group, a cyano group, or a monovalent heterocyclic group, and * represents a site bonded to M.
- R 6 6 ⁇ R 7 1 are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an alkylamino group, Al Kirushiriru group, Ariru group , Aryloxy group, arylthio group, arylamino group, arylsilyl group, arylalkyl group, arylalkoxy group, arylalkyl group , An arylalkylamino group, an arylalkylsilyl group, an acyl group, an acyloxy group, an imine residue, an amide group, an arylalkenyl group, an arylalkynyl group, or a cyano group. Represents the part to be performed. )
- the triplet light emitting complex of the present invention may be a polymer compound containing a triplet complex.
- Such compounds are disclosed in JP-A-2003-073480, JP-A-2003-073479, JP-A-2002-280183, JP-A-2003-77673 and the like.
- the composition of the present invention may contain two or more types of metal complexes that emit light from a triplet excited state.
- Each metal complex may have the same metal as each other, or may have different metals.
- the respective metal complex structures may have different emission colors from each other. For example, a case where both a metal complex that emits green light and a metal complex that emits red light are included in one polymer complex compound is exemplified. At this time, it is preferable to design so that an appropriate amount of the metal complex is contained since the emission color can be controlled.
- the amount of the triplet light-emitting compound in the composition according to the present invention is not particularly limited because it varies depending on the type of the polymer compound to be combined and the properties to be optimized, but the amount of the polymer compound is 100 parts by weight. When used, it is usually 0.01 to 80 parts by weight, preferably 0.1 to 60 parts by weight.
- the composition of the present invention is used as a light-emitting material for a polymer LED, since its purity affects the light-emitting properties, the monomer before polymerization is purified by a method such as distillation, sublimation purification, or recrystallization, and then polymerized. After the synthesis, it is preferable to carry out a pure elimination treatment such as reprecipitation purification or fractionation by chromatography.
- the polymer compound of the present invention can be used not only as a light emitting material, but also as an organic semiconductor material, an optical material, or a conductive material by doping.
- a polymer complex compound according to another embodiment of the present invention is characterized in that, in addition to a specific repeating unit, 3. a metal complex structure which emits light from a singlet excited state in a molecular chain.
- the polymer complex includes a repeating unit represented by the above formula (1), a repeating unit selected from the above formulas (12) and (13), and a metal which emits light from a triplet excited state. It has a complex structure and emits visible light in a solid state.
- the definitions and specific examples of the formulas (1), (12) and (13) are the same as those of the polymer compound used in the above-mentioned complex composition.
- Y in the formula (1) is preferably an O atom or an S atom.
- the formula (1) is represented by the formula (1-1-1), (1-2), (1-3), (1-4), (1-5), (1- 6), (1-7), (1-8), (1-9), or a repeating unit selected from (1-10) is preferable, and (1-4), (1-5), (1-6), (1-7), (1-8), (1-9), (1-10) are more preferable, and (1-6), (1-7), (1-8) , (1-9) and (1-10) are more preferred, and (1-6) is particularly preferred.
- Preferred combinations among the above are a metal complex structure that emits light from a triplet excited state, a repeating unit represented by (1-6), and any one of (12-6) or (13-1) It includes the repeating unit that is used.
- it includes a metal complex structure which emits light from a triplet excited state, and a repeating unit represented by (1-6) and a repeating unit represented by (12-6).
- the metal complex structure that emits light from the triplet excited state may be contained in the polymer main chain, may be present in the side chain, or may be present at the terminal.
- Examples of the metal complex structure that emits light from the triplet excited state include a structure represented by the following formula (16).
- M represents the same meaning as described above.
- Ar is a ligand that binds to M at one or more of a nitrogen atom, an oxygen atom, a carbon atom, a sulfur atom, and a phosphorus atom. It has one or more bonds that bind to the polymer chain of the complex compound.
- the number of bonds is usually 2 when the metal complex structure is contained in the polymer main chain, and Or 1 when present at the terminal.
- Ar is, for example, a ligand composed of a complex ring such as a pyridine ring, a thiophene ring, a benzoxazolyl ring, or a benzene ring, specifically, phenylpyridine, 2- Enylphenyl) pyridine, 7-bromobenzo [h] quinoline, 2- (4-thiophene-2-yl) pyridine, 2- (4-phenylthiophene-2-yl) pyridine, 2-phenylphenyl Benzoxazole, 2- (paraphenylphenyl) benzoxazole, 2-phenylpentazothiazole, 2- (paraphenylphenyl) benzothiazole, 2- (benzothiophen-2-yl) pyridine 7,8,12,12 13, 17, 18-hexakistyl-21H, 23H-porphyrin and the like may be mentioned, and these may have a substituent.
- a complex ring such as a
- Examples of the substituent for Ar include a halogen atom, an alkyl group, an alkenyl group, an aralkyl group, an arylthio group, an arylalkenyl group, a cyclic alkenyl group, an alkoxy group, an aryloxy group, an alkyloxycarbonyl group, and an aryl group.
- Examples include a carbonyloxy group, an aryloxycarbonyl group, an aryl group, and a monovalent heterocyclic group. The definitions and specific examples are the same as those described above.
- M is preferably bonded to at least one carbon atom of Ar.
- Ar may be a tetradentate ligand bonded to M at any four atoms selected from a nitrogen atom, an oxygen atom, a carbon atom, a sulfur atom and a phosphorus atom.
- a ligand in which four pyrrole rings are linked in a cyclic manner is, specifically, 7, 8, 12, 13, 17, 18-hexakisethyl-2 m, 23H-porphyrin.
- Ar is two atoms selected from a nitrogen atom, an oxygen atom, a carbon atom, a sulfur atom, and a phosphorus atom, and is a bidentate which forms a 5-membered ring by bonding with M
- the ligand be a ligand, and it is more preferable that M be bonded to at least one carbon atom, and it is more preferable that Ar be a bidentate ligand represented by the following formula (16-1).
- R 7 2 ⁇ R 7 9 each independently represent a hydrogen atom, a halogen atom, an alkyl group, Aruke group, Ararukiru group, ⁇ Li one thio group, ⁇ reel alkenyl group, cyclic alkenyl group, alkoxy group, Ariruokishi Group, an alkyloxycarbonyl group, an aralkyloxy group, a rubonyl group, an aryloxycarbonyl group, or an aryl group.
- At least 1 R 7 2 ⁇ R 7 9 caries Chi is a bond between the polymer chains.
- L is a hydrogen atom, an alkyl group, an aryl group, a heterocyclic ligand, an acyloxy group, a halogen atom, an amide group, an imide group, an alkoxy group, an alkyl mercapto group, a carbonyl ligand, an alkene ligand, Alkyne ligand, amine ligand, imine ligand, nitrile ligand, isonitrile ligand, phosphine ligand, phosphinoxide ligand, phosphite ligand, 'ether ligand , A sulfone ligand, a sulfoxide ligand or a sulfide ligand.
- m2 represents an integer of 1 to 5.
- o 2 represents an integer of 0 to 5.
- examples of the alkyl group include a methyl group, a tyl group, a propyl group, a butyl group, a cyclohexyl group and the like
- examples of the aryl group include a phenyl group, a tolyl group, a 1-naphthyl group and a 2-naphthyl group.
- Heterocyclic ligands may be zero-valent or monovalent, and zero-valent ligands include, for example, 2,2'-pipyridyl, 1,10-phenanthroline, 2- (4-thiophene Examples include (1-2-yl) pyridine, 2- (benzothiophene-2-yl) pyridine, and the like.
- Examples of monovalent compounds include phenylpyridine, 2- (paraphenyl) pyridine, 7-bromobenzo [h] quinoline, 2- (4-phenylthiophene-2-yl) pyridine, and 2 _ Examples thereof include phenylbenzoxazole, 2- (paraphenylphenyl) benzoxazole, 2-phenylpentazothiazole, and 2- (paraphenylphenyl) benzothiazole.
- the acyloxy group is not particularly limited, but includes, for example, an acetoxy group, a naphthenate group or a 2-ethylhexanoet group.
- the halogen atom is not particularly limited, but examples include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
- the amide group is not particularly limited, but includes, for example, a dimethylamide group, a getylamide group, a diisopropylamide group, a dioctylamide group, a didecylamide group, a didodecylamide group, a bis (trimethylsilyl) amide group, A phenylamide group, N-methylanilide or an anilide group.
- the imide group is not particularly limited, but examples include benzophenone imide.
- the alkoxy group is not particularly limited, but includes, for example, a methoxy group, an ethoxy group, a propoxy group, a butoxy group and a phenoxy group.
- the alkylmercapto group is not particularly limited, but examples include a methylmercapto group, an ethylmercapto group, a propylmercapto group, a butylmercapto group, and a phenylmercapto group.
- the ligands include ketones such as carbon monoxide, acetone, and benzophenone; diketones such as acetylacetone and acenaphthoquinone; acetyla senatonate; dibenzomethylate; tenyl trifluoroacetonate. And the like.
- the argen ligand is not particularly restricted but includes, for example, ethylene, propylene, butene, hexene or decene.
- the alkyne ligand is not particularly restricted but includes, for example, acetylene, phenylacetylene, diphenylacetylene and the like.
- the amine ligand is not particularly limited, but examples include triethylamine or triptylamine.
- the imine ligand is not particularly limited, and examples thereof include benzophenonimine and methylethylketoneimine.
- the nitrile ligand is not particularly limited, but includes, for example, acetonitrile and benzonitrile.
- the isonitrile ligand is not particularly limited, and examples thereof include t-butyl isonitrile and phenyl isonitrile.
- the phosphine ligand is not particularly limited, but includes, for example, triphenylphosphine, tritolylphosphine, tricyclohexylphosphine, tributylphosphine and the like.
- the phosphinoxide ligand is not particularly restricted but includes, for example, tributylphosphinoxide or triphenylphosphinoxide.
- the phosphite ligand is not particularly restricted but includes, for example, triphenylphosphite, tolylphosphite, triptylphosphite or triethylphosphite.
- the ether ligand is not particularly limited, and examples thereof include dimethyl ether, getyl ether, and tetrahydrofuran.
- the sulfone ligand is not particularly limited. For example, dimethyl sulfone or Is dibutyl sulfone or the like.
- the sulfoxide ligand is not particularly limited, but includes, for example, dimethyl sulfoxide or dibutyl sulfoxide.
- the sulfide ligand is not particularly limited, and examples thereof include ethyl sulfide and butyl sulfide.
- Examples of the metal complex structure that emits light from the triplet excited state include residues in which the number of hydrogen atoms corresponding to the number of bonds to the polymer chain has been removed from the ligand of the triplet light emitting complex.
- the metal complex structure that emits light from the triplet excited state may be included in the polymer main chain, may be present in a side chain, or may be present at a terminal. .
- the case where the main chain contains a metal complex structure that emits light from the triplet excited state includes, for example, the remaining bond in which two hydrogens are eliminated from the ligand of the triplet light emitting complex.
- a structural unit having two specifically, a structural unit that is a residue obtained by removing two R from each of the specific examples of the triplet luminescent complex represented by the above structural formula), preferably a repeating unit And high molecular weight compounds.
- the metal in the polymer compound can be controlled.
- the metal content in the polymer eh compound can be controlled by changing the amount of metal used at the time of complexing after producing the polymer eh compound.
- An example of a metal complex structure that emits light from a triplet excited state in the side chain is a group having one bond, which is the remaining one in which one hydrogen is eliminated from the ligand of the triplet light emitting complex.
- a residue obtained by removing one R from each of the specific examples of the triplet light emitting complex represented by the above structural formula is a direct bond such as a single bond or a double bond; , A sulfur atom, a selenium atom or the like; or a bond via a divalent linking group such as a methylene group, an alkylene group, or an arylene group.
- a structure conjugated to a metal complex structure that emits light from a triplet excited state of a side chain such as a single bond, a double bond, or an arylene group.
- the structural unit having such a side chain (repeating units), for example, the formula (2) or a repeating unit selected from (4) A r! Or A r 4 substituent or in formula (4),
- the substituent of X 2 , R 15 and R 16 each being a monovalent group having a metal complex structure exhibiting light emission from a triplet excited state, and the like can also be mentioned.
- R has the same definition as described above.
- a metal complex structure that emits light from the triplet excited state is present at the terminal of the polymer main chain is a bond in which one hydrogen is eliminated from the ligand of the triplet light emitting complex.
- a group having a hand specifically, a residue obtained by removing one R from each of the specific examples of the triplet luminescent complex represented by the above structural formula). The group is exemplified.
- the polymer complex of the present invention has a repeating unit represented by the formula (1), a repeating unit represented by the formula (1 2) or '(13), and emits light from a triplet excited state.
- a repeating unit represented by the formula (1) a repeating unit represented by the formula (1 2) or '(13)
- it may contain a repeating unit selected from the above (2) or (4).
- the polymer complex compound of the present invention contains a repeating unit selected from the above (2) or (4), a triplet with a repeating unit selected from the general formula (1) and the above (2) or (4) With respect to the total of the structural units having a metal complex structure exhibiting light emission from the excited state (repeating units), 0.011 mol% of the repeating units having the metal complex structure exhibiting light emission from the triplet excited state are included. It is preferably at least 10 mol%.
- the repeating unit represented by the general formula (1) is preferably 10 mol% or more and 98% or less, and the repeating unit represented by the general formula (12) or (13) is 2% or more and 90% or less. Is preferred.
- polymer complex compounds of the present invention those which are conjugated polymer compounds are preferable.
- the polymer complex compound of the present invention may have two or more kinds of metal complex structures that emit light from a triplet excited state. That is, the polymer complex compound of the present invention may have a metal complex structure that emits light from a triplet excited state in any two or more of its main chain, side chain, or terminal. Each metal complex structure may have the same metal as each other, or may have different metals. Further, the respective metal complex structures may have different emission colors. For example, a case where both a metal complex structure that emits green light and a metal complex structure that emits red light are included in one polymer complex conjugate is exemplified. At this time, it is preferable that the luminescent color can be controlled by designing to include an appropriate amount of the metal complex structure.
- the terminal group of the polymer complex compound of the present invention is protected with a stable group, since the luminescence characteristics and lifetime of the device may be reduced if the polymerization active group remains as it is. May be.
- Those having a conjugated bond continuous with the conjugated structure of the main chain are preferable, and examples thereof include a structure bonded to an aryl group or a heterocyclic group via a carbon-carbon bond.
- substituents described in Chemical Formula 10 of JP-A-9-45478 are exemplified.
- the polymer complex compound of the present invention may be a random, block or graft copolymer, or a polymer having an intermediate structure between them, for example, a random copolymer having a block property. You may.
- a random copolymer having block properties or a block or graft copolymer is preferable to a completely random copolymer.
- dendrimers are also included.
- Polymer used in the present invention preferably has a number average molecular weight in terms of polystyrene is 1 0 3 to 1 0 8.
- the polymer light-emitting device (polymer LED) of the present invention is characterized by having a layer containing the complex composition of the present invention or the polymer complex compound of the present invention between electrodes comprising an anode and a cathode.
- the layer containing the complex composition of the present invention or the polymer complex compound of the present invention is preferably a light emitting layer.
- the polymer LED of the present invention includes a polymer LED having an electron transport layer between a cathode and a light-emitting layer, a polymer LED having a hole transport layer between an anode and a light-emitting layer, A polymer LED in which an electron transport layer is provided between the cathode and the light emitting layer and a hole transport layer is provided between the anode and the light emitting layer is exemplified.
- a polymer LED in which a layer containing a conductive polymer is provided between the at least one electrode and the light emitting layer and adjacent to the electrode; a polymer LED adjacent to the electrode between at least one electrode and the light emitting layer.
- a polymer LED provided with a buffer layer having an average film thickness of 2 nm or less.
- the light emitting layer is a layer having a function of emitting light
- the hole transport layer is a layer having a function of transporting holes
- the electron transport layer is a layer having a function of transporting electrons. It is. Note that the electron transport layer and the hole transport layer are collectively called a charge transport layer.
- Two or more light emitting layers, hole transport layers, and electron transport layers may be used independently.
- charge transport layers provided adjacent to the electrodes, those having the function of improving the charge injection efficiency from the electrodes and having the effect of lowering the driving voltage of the element include the charge injection layers (hole injection layers). , Electron injection layer).
- the above-described charge injection layer or an insulating layer having a thickness of 2 nm or less may be provided adjacent to the electrode to improve adhesion to the electrode and improve charge injection from the electrode.
- a thin buffer layer may be inserted at the interface between the charge transport layer and the light emitting layer to improve adhesion and prevent mixing.
- a hole blocking layer may be inserted at the interface with the light emitting layer in order to transport electrons and confine holes.
- the order and number of layers to be laminated and the thickness of each layer can be appropriately used in consideration of luminous efficiency and device life.
- a polymer LED provided with a charge injection layer includes a polymer LED provided with a charge injection layer adjacent to a cathode, and a charge injection layer adjacent to an anode.
- Polymer LED provided with a charge injection layer includes a polymer LED provided with a charge injection layer adjacent to a cathode, and a charge injection layer adjacent to an anode.
- Negative electrodeSpecific examples of the charge injection layer include a layer containing a conductive polymer, an anode and a hole transport layer. A layer containing a material having an ionization potential of an intermediate value between the anode material and the hole transport material contained in the hole transport layer; and a layer provided between the cathode and the electron transport layer. Examples include a layer containing a material having an electron affinity of an intermediate value between the material and the electron transporting material contained in the electron transporting layer.
- the electric conductivity of the conducting polymer is preferably from 1 (T 5 SZcm least 10 3 SZ cm, the leak current between light emitting pixels to reduce is more preferably 10 2 SZcm less than 10- 5 SZcm, more preferably 10 one 5 SZcm least 10 1 SZcm below.
- the type of ions to be doped is an anion for the hole injection layer, and a click for the electron injection layer.
- examples of anions include polystyrenesulfonate, alkylbenzenesulfonate, camphorsulfonate, and the like.
- examples of cations include lithium, sodium, potassium, and tetrabutylammonium. Is exemplified.
- the thickness of the charge injection layer is, for example, 1 nm to 100 nm, and preferably 2 nm to 50 nm.
- the material used for the charge injection layer may be appropriately selected depending on the relationship with the material of the electrode and the adjacent layer.
- the insulating layer having a thickness of 2 nm or less has a function of facilitating charge injection.
- the material of the insulating layer include metal fluorides, metal oxides, and organic insulating materials.
- a polymer LED with an insulating layer with a thickness of 2 nm or less an insulating layer with a thickness of 2 nm or less is adjacent to the cathode. Examples include a polymer LED having an edge layer, and a polymer LED having an insulating layer having a thickness of 2 nm or less adjacent to an anode.
- the hole blocking layer has a function of transporting electrons and confining holes transported from the anode.
- the hole blocking layer is provided at the interface of the light emitting layer on the cathode side, and has a larger potential than the ionization potential of the light emitting layer. It is composed of a material having an ionization potential, for example, metal complex of pasocproine, 8-hydroxyquinoline or a derivative thereof.
- the thickness of the hole blocking layer is, for example, 1 nm to 100 nm, and preferably 2 nm to 50 nm.
- the complex composition and the polymer complex compound of the present invention when preparing a polymer LED, when forming a film from a solution, it is only necessary to remove the solvent by drying after coating this solution, The same method can be applied to the case where a transport material and a luminescent material are mixed, which is very advantageous in manufacturing.
- Examples of the method of forming a film from a solution include spin coating, casting, microgravure coating, gravure coating, percoating, roll coating, peer-coating, dip coating, spray coating, screen printing, and the like. Coating methods such as flexographic printing, offset printing, and inkjet printing can be used.
- the optimum value of the thickness of the light-emitting layer varies depending on the material used, and may be selected so that the driving voltage and the luminous efficiency have appropriate values.
- the thickness is 1 nm to 1 ⁇ , preferably 2 nm to 5 nm. And more preferably from 5 nm to 200 nm.
- a light emitting material other than the complex composition and the polymer complex compound of the present invention may be mixed and used in the light emitting layer.
- the light emitting layer containing the light emitting material other than the present invention contains the complex composition of the present invention and the polymer complex compound.
- the light emitting layer may be laminated.
- the luminescent material known materials can be used.
- low molecular compounds include naphthalene derivatives, anthracene or its derivatives, perylene or its derivatives, polymethine, xanthene, coumarin, and cyanine dyes, and 8-hydroxyquinolyl.
- JP-A-57-51781 and JP-A-59-194393 can be used.
- the hole transport material used may be polyvinyl carbazole or a derivative thereof, polysilane or a derivative thereof, or a polysiloxane derivative having an aromatic amine in a side chain or a main chain.
- examples of the hole transport material include JP-A-63-72057, JP-A-63-175580, and JP-A-2-135359.
- JP-A Nos. 2-1353063, 2-209988, 3-37992, and 3-152184 Examples are those that have been done.
- a hole transporting material used for the hole transporting layer polyvinyl carbazole or a derivative thereof, polysilane or a derivative thereof, a polysiloxane derivative having an aromatic amine compound group in a side chain or a main chain, a polyaniline Or a polymer hole transport material such as a derivative thereof, polythiophene or a derivative thereof, poly (p-phenylenepinylene) or a derivative thereof, or poly (2,5-chenylenevinylene) or a derivative thereof. More preferred are polyvinylcarbazole or derivatives thereof, polysilane or derivatives thereof, and polysiloxane derivatives having aromatic amines in the side chain or main chain. In the case of a low-molecular-weight hole transport material, it is preferable to use it by dispersing it in a high-molecular binder.
- Polypinylcarbazole or a derivative thereof can be obtained, for example, by cationic polymerization or radical polymerization from a pinyl monomer.
- polysilanes or derivatives thereof examples include Chemical Review (Chem. Rev. Examples thereof include compounds described in Vol. 89, pp. 1359 (1989), British Patent GB 2 3 0 196 published specification.
- the synthesis method the method described in the above can be used, but the Kipping method is particularly preferably used.
- the polysiloxane or a derivative thereof those having the structure of the low-molecular-weight hole transporting material in the side chain or the main chain are preferably used since the siloxane skeleton structure has almost no hole transporting property.
- a method having a hole transporting aromatic amine in a side chain or a main chain is exemplified.
- the method of forming a hole transporting layer is not limited.
- a polymer binder is used in a low molecular weight hole transporting material.
- a method by film formation from a mixed solution of the above is exemplified.
- a method by film formation from a solution is exemplified.
- the solvent used for film formation from a solution is not particularly limited as long as it can dissolve the hole transport material.
- the solvent include chlorinated solvents such as chloroform, methylene chloride and dichloroethane; ether solvents such as tetrahydrofuran; aromatic hydrocarbon solvents such as toluene and xylene; ketone solvents such as acetone and methyl ethyl ketone; Examples include ester solvents such as ethyl acetate, butyl acetate, and ethyl cellosolve acetate.
- polymer binder to be mixed those that do not extremely inhibit charge transport are preferable, and those that do not strongly absorb visible light are suitably used.
- the polymer binder include polycarbonate, polyacrylate, polymethyl acrylate, polymethyl methacrylate, polystyrene, polychlorinated vinyl, and polysiloxane.
- the optimal value of the thickness of the hole transport layer differs depending on the material used, and the thickness may be selected so that the driving voltage and the luminous efficiency are appropriate values, but at least a thickness that does not cause pinholes is necessary. If the thickness is too large, the driving voltage of the device becomes high, which is not preferable. Therefore, the thickness of the hole transport layer is, for example, 1 nm to 1 im, and preferably 2 nm to 1 im. It is 500 nm, more preferably 5 nm to 200 nm.
- the polymer LED of the present invention has an electron transporting layer
- known electron transporting materials can be used, such as oxadiazole derivatives, anthraquinodimethane or its derivatives, benzoquinone or its derivatives, and naphthoquinone or its derivatives.
- Anthraquinone or a derivative thereof tetracyanoanthraquinodimethane or a derivative thereof, a fluorenone derivative, diphenyldicyanoethylene or a derivative thereof, a diphenoquinone derivative, or a metal complex of 8-hydroxyquinoline or a derivative thereof, polyquinoline or Examples thereof include a derivative thereof, polyquinoxaline or a derivative thereof, polyfluorene or a derivative thereof, and the like.
- Examples thereof include those described in JP-A-3-37992 and JP-A-3-152184.
- oxadiazole derivatives benzoquinone or derivatives thereof, anthraquinone or derivatives thereof, or metal complexes of 8-hydroxyquinoline or derivatives thereof, polyquinolines or derivatives thereof, polyquinoxalines or derivatives thereof, and polyfluorenes or derivatives thereof are preferable.
- 2- (4-biphenylyl) -5- (4-t-butylphenyl) -1,3,4-oxadiazole, benzoquinone, anthraquinone, tris (8-quinolinol) aluminum, and polyquinoline are more preferred.
- the method of forming the electron transport layer There is no particular limitation on the method of forming the electron transport layer.For low molecular weight electron transport materials, vacuum evaporation from powder or film formation from a solution or molten state is used. Alternatively, a method of forming a film from a molten state is exemplified. When forming a film from a solution or a molten state, a polymer binder may be used in combination.
- the solvent used for film formation from a solution is not particularly limited as long as it dissolves the electron transporting material and Z or a polymer binder.
- the solvent include chlorinated solvents such as chloroform, methylene chloride and dichloroethane, ether solvents such as tetrahydrofuran, aromatic hydrocarbon solvents such as toluene and xylene, acetone, methylethyl ketone and the like.
- Ethyl solvents such as ketone solvents, ethyl acetate, butyl acetate, and ethyl cellosolve acetate Is exemplified.
- Coating methods such as screen printing, flexographic printing, offset printing, and inkjet printing can be used. .
- polymer binder those that do not extremely inhibit charge transport are preferable, and those that do not strongly absorb visible light are suitably used.
- the polymer binder include poly (N-vinylcarbazole), polyaniline or a derivative thereof, polythiophene or a derivative thereof, poly (p-phenylenevinylene) or a derivative thereof, and poly (2,5-che2). Lenvinylene) or a derivative thereof, polyacrylonitrile, polyacrylate, polymethyl acrylate, polymethyl methacrylate, polystyrene, polyvinyl chloride, or polysiloxane.
- the optimum value of the thickness of the electron transporting layer differs depending on the material used, and may be selected so that the driving voltage and the luminous efficiency are appropriate values, but at least a thickness that does not cause pinholes is necessary. Yes, too thick is not preferable because the driving voltage of the device becomes high. Therefore, the thickness of the electron transport layer is, for example, 1 nm to 1 m, preferably 2 nm to 500 nm, and more preferably 5 nm to 200 nm.
- the substrate on which the polymer LED of the present invention is formed may be any as long as it does not change when electrodes are formed and each layer of the polymer LED is formed.
- the opposite electrode is preferably transparent or translucent.
- At least one of the electrodes consisting of the anode and the cathode is transparent or translucent, and the anode side is transparent or translucent.
- a conductive metal oxide film, a translucent metal thin film, or the like is used as a material for the anode.
- a film formed using a conductive glass made of indium oxide, zinc oxide, tin oxide, or a complex thereof, such as indium tin oxide (IT ⁇ ) or indium zinc zinc oxide. (Such as NESA), gold, platinum, silver, copper, etc. ITO, indium-zinc-oxide, and tin oxide are preferred.
- the manufacturing method include a vacuum evaporation method, a sputtering method, an ion plating method, and a plating method.
- an organic transparent conductive film such as polyaniline or a derivative thereof, polythiophene or a derivative thereof may be used as the anode.
- the thickness of the anode can be appropriately selected in consideration of light transmittance and electric conductivity, and is, for example, 10 nm to 10 m, and preferably 20 nm to l; am. More preferably, it is 50 nm to 500 nm.
- a layer of nm or less may be provided.
- a material having a small work function is preferable.
- metals such as lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, aluminum, scandium, vanadium, zinc, yttrium, indium, cerium, samarium, europium, terbium, ytterbium, and the like Alloys of two or more of the following, or one or more of them, and one or more of gold, silver, platinum, copper, manganese, titanium, cobalt, nigger, tungsten, and tin; Alternatively, a graphite interlayer compound or the like is used.
- the cathode may have a laminated structure of two or more layers.
- the thickness of the cathode can be appropriately selected in consideration of electric conductivity and durability, but is, for example, 10 nm to 10 m, and is preferably 20 nm to lm, more preferably 50 nm to 500 nm.
- a vacuum evaporation method, a sputtering method, a lamination method in which a metal thin film is thermocompression-bonded, and the like are used.
- a lower layer may be provided, and a protective layer for protecting the polymer LED may be attached after the cathode is manufactured. In order to use the polymer LED stably for a long period of time, it is preferable to attach a protective layer and / or a protective cover to protect the element from the outside.
- the protective layer polymer compounds, metal oxides, metal fluorides, metal borides, and the like can be used.
- a glass plate, a plastic plate whose surface has been subjected to a low water permeability treatment, or the like can be used, and the cover is bonded to the element substrate with a heat effect resin or a photocurable resin and sealed.
- the method is preferably used. If the space is maintained using a spacer, it is easy to prevent the element from being damaged. If the space is filled with an inert gas such as nitrogen or argon, oxidation of the cathode can be prevented. Further, by installing a drying agent such as barium oxide in the space, the moisture adsorbed in the manufacturing process can be reduced. This makes it easier to prevent the element from damaging the element. It is preferable to take one or more of these measures.
- the polymer light emitting device of the present invention can be used for a planar light source, a segment display, a dot matrix display, or a backlight of a liquid crystal display.
- a planar anode and a planar cathode may be arranged so as to overlap.
- both the anode and the cathode may be formed in a stripe shape and arranged so as to be orthogonal to each other.
- a partial color display or a multi-color display can be achieved by a method in which a plurality of types of luminescent materials having different luminescent colors are separately applied, or a method using a color filter or a luminescence conversion filter.
- the dot matrix element can be driven passively or may be driven actively in combination with a TFT or the like.
- These display elements can be used as display devices for computers, televisions, mobile terminals, mobile phones, car navigation systems, video camera viewfinders, and the like.
- planar light emitting element is a self-luminous thin type, and can be suitably used as a planar light source for a backlight of a liquid crystal display device or a planar illumination light source. If a flexible substrate is used, it can be used as a curved light source or display device.
- the polystyrene-equivalent number average molecule ⁇ was determined by gel permeation chromatography (GPC: HLC-8220GPC, manufactured by Tosoh or SCL-10A, manufactured by Shimadzu Corporation) using tetrahydrofuran as a solvent.
- benzofuran (23.2 g, 137.9 tmol) and acetic acid (232 g) were placed in a three-necked flask, stirred at room temperature and dissolved, and then heated to 75 ° C. After the temperature was raised, bromine (92.6 g, 579.3 ol) was diluted with acetic acid (54 g) and added dropwise. After completion of the dropwise addition, the mixture was stirred for 3 hours while maintaining the temperature, and allowed to cool. After confirming the disappearance of the starting materials by TLC, aqueous sodium thiosulfate was added to terminate the reaction, followed by stirring at room temperature for 1 hour.
- reaction completion mass was poured into a 2000 ml beaker containing concentrated sulfuric acid (30 g) and water (600 ml) to terminate the reaction. Toluene (300 ml) was added, the organic layer was extracted, and water was further added for washing. After the solvent was distilled off, 8 g of the solvent and ethyl acetate (160 ml) were placed in a 30 Om 1 four-necked flask, followed by 30% hydrogen peroxide (7.09 g), and the mixture was stirred at 40 ° C for 2 hours. .
- this solution was cooled and then a mixed solution of 25% ammonia water (40 ml), methanol (200 ml) and ion-exchanged water (20 Oml) was poured thereinto, followed by stirring for about 1 hour. Next, generate The precipitate that formed was collected by filtration. The precipitate was dried under reduced pressure and dissolved in 600 g of toluene. After the solution was filtered to remove insolubles, the solution was purified by passing through a column filled with alumina. Next, this solution was washed with 1 N hydrochloric acid. After liquid separation, the toluene phase was washed with about 3% aqueous ammonia.
- a 0.8 wt% chloroform solution of a mixture obtained by adding 5 wt% of iridium complex A (manufactured by American Disource Co., Ltd.) to polymer compound 1-1 was prepared.
- the reaction was terminated by adding 100 ml of 5 '% sulfuric acid, and the mixture was stirred at room temperature for 12 hours. Water was added for washing, and the organic layer was separated. After replacing the solvent with ethyl acetate, 5 ml of 30% aqueous hydrogen peroxide was added, and the mixture was stirred at 40 ° C for 5 hours. Thereafter, the organic layer was separated, washed with a 10% aqueous solution of iron (II) ammonium sulfate, dried, and the solvent was distilled off to obtain 4.43 g of a brown solid. By-products such as dimers were also formed from the LC-MS measurement, and the purity of Compound E was 77% (LC area percentage).
- High molecular compound 1-1 2 Polymer consisting essentially of the following repeating units
- a device was produced in the same manner as in Example 1 except that Polymer Compound 1-2 was used instead of Polymer Compound 111.
- the number of revolutions per night of the spin core was 2000 rpm, and the film thickness was about 160 nm.
- EL light emission having a peak at 520 nm was obtained.
- the device emitted 100 cd / m 2 at about 29 V.
- the maximum luminous efficiency was 3.lc dZA.
- a 0.8 wt% chloroform solution of a mixture obtained by adding 5 wt% of iridium complex B to the above polymer 1-1 was prepared.
- a device was produced in the same manner as in Example 1.
- the number of revolutions per night was 2.500 rpm, and the film thickness was about 100 nm.
- EL light emission having a peak at 620 nm was obtained.
- the device emitted 100 cd / m 2 at about 18 V.
- the maximum luminous efficiency was 1.6 cdZA.
- a 0.6% chloroform solution was prepared, and a device was prepared in the same manner as in Example 1.
- the rotation speed of the spin core was 2600 rpm, and the film thickness was about 90 nm.
- EL light emission having a peak at 508 nm was obtained.
- the maximum luminous efficiency of the device was as low as 0.12 cdZA.
- polymer compound R1 was synthesized by the method described in US Pat. No. 6512083.
- Polymer compound R 1 Homopolymer consisting essentially of the following repeating units Synthesis Example 12 (Synthesis of polymer compound 1-3)
- the obtained methanol suspension was concentrated under reduced pressure to about 2 Oml, and 3 Oml of methanol was added thereto and stirred to precipitate a precipitate.
- the deposited precipitate was filtered and dried under reduced pressure for 2 hours.
- the yield of the obtained polymer compound 13 was 19 Omg.
- High molecular compound 1- 3 Polymer consisting essentially of the following repeating units
- a device was produced in the same manner as in Example 1 except that the following polymer compound 113 was used instead of the polymer compound 111.
- a 50 nm thick film was formed by spin coating using a solution of poly (ethylenedioxythiophene) / polystyrenesulfonate (Paier, BaytronP).
- a 0.81% by weight solution of a mixture of polymer compound 13 and 5% by weight of iridium complex A was prepared at a rotation speed of 1600 rpm using a spin coater.
- Aluminum was deposited at about 50 nm. By applying a voltage to the obtained device, EL light emission having a peak at 516 nm was obtained.
- the device emitted 100 cd / m 2 at about 7.9.
- the maximum luminous efficiency was 8.3 cdZA.
- a device was produced in the same manner as in the above example, except that iridium complex A was not added to polymer compound 1-3. By applying a voltage to the obtained device, EL light emission having a peak at 436 nm was obtained. The device costs about 7.4 ⁇ 100. Roh: 11 showed a 2 g light. The maximum luminous efficiency was 0.37 cdZA. Synthesis Example 13 (Polymer compound 1-4)
- the solution was cooled, and a mixed solution of 25% aqueous ammonia 100 ml / methanol 200 ml / ion-exchanged water 200 ml was poured thereinto and stirred for about 1 hour. Next, the resulting precipitate was collected by filtration. The precipitate was dried under reduced pressure and dissolved in toluene. After the solution was filtered to remove insolubles, the toluene solution was washed with 1N hydrochloric acid, and then separated, and the toluene solution was recovered. Next, the toluene solution was washed with about 3% aqueous ammonia, and then separated, and the toluene solution was recovered. Next, after this toluene solution was washed with ion-exchanged water, liquid separation and a toluene solution were recovered. To this toluene solution, methanol was added with stirring to perform reprecipitation purification.
- the generated precipitate was recovered, and this precipitate was dried under reduced pressure to obtain 4.0 g of a polymer.
- This polymer is called a polymer compound.
- the polystyrene reduced weight average molecular weight of the obtained polymer compound was 3.9 ⁇ 10 5 , and the number average molecular weight was 4.3 ⁇ 10 4 .
- High molecular compound 1-4 copolymer consisting essentially of the following repeating units
- a device was produced in the same manner as in Example 3 except that polymer compound 114 was used instead of polymer compound 111.
- the spin coater rotation speed during film formation was 4000 rpm, and the film thickness was about 10 O nm.
- EL light emission having a peak at 620 nm was obtained.
- the device emitted 100 cdZm 2 at about 7.2 V.
- the maximum luminous efficiency was 0.7 cd / A.
- a device was produced in the same manner as in the above example, except that iridium complex B was not added to polymer compound 1-4. By applying a voltage to the obtained device, EL light emission having a peak at 452 nm was obtained. This device, about 7. showed light emission of 100 c DZM 2 at 7 V, the maximum Luminous efficiency was 0. 5 c dZA.
- the resulting precipitate was collected by filtration.
- the precipitate was dried under reduced pressure to obtain 4 g of a polymer.
- This polymer is called a polymer compound.
- the polystyrene reduced weight average molecular weight of the obtained polymer compound was 4.6 ⁇ 10 4 , and the number average molecular weight was 6.5 ⁇ 10 3 .
- High molecular compound 1-1 5 Copolymer consisting essentially of the following repeating units
- a device was fabricated in the same manner as in Example 1 except that Polymer Compound 1-5 was used instead of Polymer Compound 1-1.
- the spin coater rotation speed during film formation was 1400 rpm, and the film thickness was about 95 nm.
- EL light emission having a peak at 516 nm was obtained.
- the device emitted 100 cd / m 2 at about 8.5 V.
- the maximum luminous efficiency was 6.2 cd / A.
- a device was prepared in the same manner as in the above example, except that iridium complex A was not added to the polymer-conjugated product 115. By applying a voltage to the obtained device, EL light emission having a peak at 444 nm was obtained. The device emitted 100 cdZm 2 at about 6.1 V, and had a maximum emission efficiency of 0.6 cd / A. Industrial applicability
- a light-emitting element using the composition of the present invention for a light-emitting layer has excellent luminous efficiency. Therefore, the composition of the present invention can be suitably used as a light emitting material of a polymer LED, and can be used as a material such as a polymer light emitting device and an organic EL device using the same.
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Electroluminescent Light Sources (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
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Description
Claims
Priority Applications (4)
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CN2004800133864A CN1791637B (zh) | 2003-05-16 | 2004-05-14 | 组合物和聚合物发光器件 |
US10/556,771 US20070103059A1 (en) | 2003-05-16 | 2004-05-14 | Composition and polymer light-emitting device |
DE112004000833T DE112004000833T5 (de) | 2003-05-16 | 2004-05-14 | Zusammensetzung und polymere lichtemittierende Vorrichtung |
KR1020057021735A KR101128164B1 (ko) | 2003-05-16 | 2004-05-14 | 조성물 및 고분자 발광 소자 |
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US (1) | US20070103059A1 (ja) |
KR (1) | KR101128164B1 (ja) |
CN (1) | CN1791637B (ja) |
DE (1) | DE112004000833T5 (ja) |
TW (1) | TW200502355A (ja) |
WO (1) | WO2004101682A1 (ja) |
Cited By (3)
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US20110121278A1 (en) * | 2004-10-15 | 2011-05-26 | Sumitomo Chemical Co., Ltd. | Solution composition and polymer light-emitting device |
CN101184811B (zh) * | 2005-06-01 | 2011-08-17 | 住友化学株式会社 | 高分子组合物以及高分子发光元件 |
USRE44831E1 (en) | 2006-01-05 | 2014-04-08 | Konica Minolta Holdings, Inc. | Organic electroluminescent device, display, and illuminating device |
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CN1849356B (zh) * | 2003-09-12 | 2010-04-28 | 住友化学株式会社 | 聚合物配位化合物和使用其的聚合物发光器件 |
TW200712091A (en) * | 2005-06-10 | 2007-04-01 | Sumitomo Chemical Co | Process for production of polymer compound |
KR20070002756A (ko) * | 2005-06-30 | 2007-01-05 | 엘지.필립스 엘시디 주식회사 | 백라이트 유닛 |
TWI415920B (zh) * | 2005-08-12 | 2013-11-21 | Sumitomo Chemical Co | 高分子材料及使用該高分子材料之元件 |
JP5581607B2 (ja) * | 2008-06-05 | 2014-09-03 | 住友化学株式会社 | 高分子化合物及びそれを用いた有機トランジスタ |
US9178156B2 (en) | 2009-12-23 | 2015-11-03 | Merck Patent Gmbh | Compositions comprising polymeric binders |
GB2508409B (en) * | 2012-11-30 | 2015-11-25 | Cambridge Display Tech Ltd | Organic light-emitting composition, device and method |
WO2015082037A1 (en) | 2013-12-06 | 2015-06-11 | Merck Patent Gmbh | Compositions containing a polymeric binder which comprises acrylic and/or methacrylic acid ester units |
WO2018178136A1 (en) | 2017-03-31 | 2018-10-04 | Merck Patent Gmbh | Printing method for an organic light emitting diode (oled) |
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- 2004-05-14 DE DE112004000833T patent/DE112004000833T5/de not_active Ceased
- 2004-05-14 WO PCT/JP2004/006902 patent/WO2004101682A1/ja active Application Filing
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Also Published As
Publication number | Publication date |
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KR101128164B1 (ko) | 2012-03-28 |
KR20060012614A (ko) | 2006-02-08 |
TW200502355A (en) | 2005-01-16 |
CN1791637A (zh) | 2006-06-21 |
CN1791637B (zh) | 2012-04-18 |
US20070103059A1 (en) | 2007-05-10 |
DE112004000833T5 (de) | 2006-03-02 |
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