JP7479134B2 - 有機電界発光素子及び有機電界発光素子用多環化合物 - Google Patents
有機電界発光素子及び有機電界発光素子用多環化合物 Download PDFInfo
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- JP7479134B2 JP7479134B2 JP2019201721A JP2019201721A JP7479134B2 JP 7479134 B2 JP7479134 B2 JP 7479134B2 JP 2019201721 A JP2019201721 A JP 2019201721A JP 2019201721 A JP2019201721 A JP 2019201721A JP 7479134 B2 JP7479134 B2 JP 7479134B2
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- JXKQGMUHBKZPCD-UHFFFAOYSA-N 1-n,1-n,4-n,4-n-tetraphenylpyrene-1,4-diamine Chemical compound C1=CC=CC=C1N(C=1C2=CC=C3C=CC=C4C=C(C(C2=C43)=CC=1)N(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 JXKQGMUHBKZPCD-UHFFFAOYSA-N 0.000 description 1
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- SPDPTFAJSFKAMT-UHFFFAOYSA-N 1-n-[4-[4-(n-[4-(3-methyl-n-(3-methylphenyl)anilino)phenyl]anilino)phenyl]phenyl]-4-n,4-n-bis(3-methylphenyl)-1-n-phenylbenzene-1,4-diamine Chemical compound CC1=CC=CC(N(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=CC(=CC=2)C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=CC(=CC=2)N(C=2C=C(C)C=CC=2)C=2C=C(C)C=CC=2)C=2C=C(C)C=CC=2)=C1 SPDPTFAJSFKAMT-UHFFFAOYSA-N 0.000 description 1
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- BFTIPCRZWILUIY-UHFFFAOYSA-N 2,5,8,11-tetratert-butylperylene Chemical group CC(C)(C)C1=CC(C2=CC(C(C)(C)C)=CC=3C2=C2C=C(C=3)C(C)(C)C)=C3C2=CC(C(C)(C)C)=CC3=C1 BFTIPCRZWILUIY-UHFFFAOYSA-N 0.000 description 1
- AIAJGVRFXREWPK-UHFFFAOYSA-N 2,8-bis(diphenylphosphoryl)dibenzofuran Chemical compound C=1C=CC=CC=1P(C=1C=C2C3=CC(=CC=C3OC2=CC=1)P(=O)(C=1C=CC=CC=1)C=1C=CC=CC=1)(=O)C1=CC=CC=C1 AIAJGVRFXREWPK-UHFFFAOYSA-N 0.000 description 1
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- BAIUBKGLQRJJBF-UHFFFAOYSA-N 4-(3-iodophenyl)pyridine Chemical compound C1=C(C2=CC(I)=CC=C2)C=CN=C1 BAIUBKGLQRJJBF-UHFFFAOYSA-N 0.000 description 1
- MBPCKEZNJVJYTC-UHFFFAOYSA-N 4-[4-(n-phenylanilino)phenyl]aniline Chemical compound C1=CC(N)=CC=C1C1=CC=C(N(C=2C=CC=CC=2)C=2C=CC=CC=2)C=C1 MBPCKEZNJVJYTC-UHFFFAOYSA-N 0.000 description 1
- 125000004920 4-methyl-2-pentyl group Chemical group CC(CC(C)*)C 0.000 description 1
- SKRQCHDXFSWTHN-UHFFFAOYSA-N 4-methyl-n-[4-[2-[4-[1-(4-methyl-n-(4-methylphenyl)anilino)-2-phenylethenyl]phenyl]ethenyl]phenyl]-n-(4-methylphenyl)aniline Chemical compound C1=CC(C)=CC=C1N(C=1C=CC(C)=CC=1)C(C=1C=CC(C=CC=2C=CC(=CC=2)N(C=2C=CC(C)=CC=2)C=2C=CC(C)=CC=2)=CC=1)=CC1=CC=CC=C1 SKRQCHDXFSWTHN-UHFFFAOYSA-N 0.000 description 1
- DIVZFUBWFAOMCW-UHFFFAOYSA-N 4-n-(3-methylphenyl)-1-n,1-n-bis[4-(n-(3-methylphenyl)anilino)phenyl]-4-n-phenylbenzene-1,4-diamine Chemical compound CC1=CC=CC(N(C=2C=CC=CC=2)C=2C=CC(=CC=2)N(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C(C)C=CC=2)C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C(C)C=CC=2)=C1 DIVZFUBWFAOMCW-UHFFFAOYSA-N 0.000 description 1
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910003867 O—B—O Inorganic materials 0.000 description 1
- WDJHALXBUFZDSR-UHFFFAOYSA-M acetoacetate Chemical compound CC(=O)CC([O-])=O WDJHALXBUFZDSR-UHFFFAOYSA-M 0.000 description 1
- 125000000641 acridinyl group Chemical group C1(=CC=CC2=NC3=CC=CC=C3C=C12)* 0.000 description 1
- 125000005073 adamantyl group Chemical group C12(CC3CC(CC(C1)C3)C2)* 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000003282 alkyl amino group Chemical group 0.000 description 1
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- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 125000002178 anthracenyl group Chemical group C1(=CC=CC2=CC3=CC=CC=C3C=C12)* 0.000 description 1
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 1
- YCOXTKKNXUZSKD-UHFFFAOYSA-N as-o-xylenol Natural products CC1=CC=C(O)C=C1C YCOXTKKNXUZSKD-UHFFFAOYSA-N 0.000 description 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 1
- LPTWEDZIPSKWDG-UHFFFAOYSA-N benzenesulfonic acid;dodecane Chemical compound OS(=O)(=O)C1=CC=CC=C1.CCCCCCCCCCCC LPTWEDZIPSKWDG-UHFFFAOYSA-N 0.000 description 1
- 125000003785 benzimidazolyl group Chemical group N1=C(NC2=C1C=CC=C2)* 0.000 description 1
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- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 125000004196 benzothienyl group Chemical group S1C(=CC2=C1C=CC=C2)* 0.000 description 1
- 125000004541 benzoxazolyl group Chemical group O1C(=NC2=C1C=CC=C2)* 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- UFVXQDWNSAGPHN-UHFFFAOYSA-K bis[(2-methylquinolin-8-yl)oxy]-(4-phenylphenoxy)alumane Chemical compound [Al+3].C1=CC=C([O-])C2=NC(C)=CC=C21.C1=CC=C([O-])C2=NC(C)=CC=C21.C1=CC([O-])=CC=C1C1=CC=CC=C1 UFVXQDWNSAGPHN-UHFFFAOYSA-K 0.000 description 1
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- XZCJVWCMJYNSQO-UHFFFAOYSA-N butyl pbd Chemical compound C1=CC(C(C)(C)C)=CC=C1C1=NN=C(C=2C=CC(=CC=2)C=2C=CC=CC=2)O1 XZCJVWCMJYNSQO-UHFFFAOYSA-N 0.000 description 1
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- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 description 1
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- 125000001309 chloro group Chemical group Cl* 0.000 description 1
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- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 125000005509 dibenzothiophenyl group Chemical group 0.000 description 1
- YDVNLQGCLLPHAH-UHFFFAOYSA-N dichloromethane;hydrate Chemical compound O.ClCCl YDVNLQGCLLPHAH-UHFFFAOYSA-N 0.000 description 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- SNHMUERNLJLMHN-UHFFFAOYSA-N iodobenzene Chemical compound IC1=CC=CC=C1 SNHMUERNLJLMHN-UHFFFAOYSA-N 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000002183 isoquinolinyl group Chemical group C1(=NC=CC2=CC=CC=C12)* 0.000 description 1
- 125000000842 isoxazolyl group Chemical group 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000000250 methylamino group Chemical group [H]N(*)C([H])([H])[H] 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- NRKQPQQULQMWBV-MBALSZOMSA-N n,n-diphenyl-4-[(e)-2-[6-[(e)-2-[4-(n-phenylanilino)phenyl]ethenyl]naphthalen-2-yl]ethenyl]aniline Chemical compound C=1C=C(N(C=2C=CC=CC=2)C=2C=CC=CC=2)C=CC=1/C=C/C(C=C1C=C2)=CC=C1C=C2\C=C\C(C=C1)=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 NRKQPQQULQMWBV-MBALSZOMSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000005184 naphthylamino group Chemical group C1(=CC=CC2=CC=CC=C12)N* 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical group [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 125000004625 phenanthrolinyl group Chemical group N1=C(C=CC2=CC=C3C=CC=NC3=C12)* 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 125000001484 phenothiazinyl group Chemical group C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- 125000001644 phenoxazinyl group Chemical group C1(=CC=CC=2OC3=CC=CC=C3NC12)* 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 125000004592 phthalazinyl group Chemical group C1(=NN=CC2=CC=CC=C12)* 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 125000005504 styryl group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- WSANLGASBHUYGD-UHFFFAOYSA-N sulfidophosphanium Chemical group S=[PH3] WSANLGASBHUYGD-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000006617 triphenylamine group Chemical group 0.000 description 1
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- TYHJXGDMRRJCRY-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) tin(4+) Chemical compound [O-2].[Zn+2].[Sn+4].[In+3] TYHJXGDMRRJCRY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
- C07F5/02—Boron compounds
- C07F5/027—Organoboranes and organoborohydrides
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/321—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3]
- H10K85/322—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3] comprising boron
-
- H—ELECTRICITY
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Description
化学式1において、X1~X10は、それぞれ独立して炭素または窒素であり、R1~R3は、それぞれ独立して重水素原子、置換若しくは無置換のアミノ基、置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、R4~R5は、それぞれ独立して水素原子、重水素原子、置換若しくは無置換のアミノ基、置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、a及びbは0以上4以下の整数であり、cは0以上3以下の整数であり、d及びeはそれぞれ独立して0以上5以下の整数であり、X1~X10がいずれも炭素であれば、R4及びR5のうち少なくとも一つは置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基である。
化学式1は下記化学式2で表される。
化学式2において、Ar1~Ar2はそれぞれ独立して置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、fは0以上3以下の整数であり、X1~X10、R1~R5、a及びc~eは化学式1で定義した通りである。
前記化学式3において、R4~R5はそれぞれ独立して重水素原子、置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、R4及びR5のうち少なくとも一つは置換若しくは無置換の環形成炭素数2以上30以下のNを含むヘテロアリール基であり、R1~R3、a~eは化学式1で定義した通りである。
化学式4において、Y1~Y5はそれぞれ独立して炭素または窒素であり、Y1~Y5のうち少なくとも一つは窒素であり、R6は水素原子、重水素原子置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下ヘテロアリール基であり、gは0以上4以下の整数であり、hは5-n(nは、Y1~Y5における窒素の数)の整数であり、R1~R5、a~c及びeは化学式3で定義した通りである。
化学式5において、Ar1~Ar2はそれぞれ独立して置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、fは0以上3以下の整数であり、R1~R6、Y1~Y5、a、c、e、g、及びhは化学式4で定義した通りである。
化学式6において、X1~X5はそれぞれ独立して炭素または窒素であり、X1~X5のうち少なくとも一つは窒素であり、R5は重水素原子、置換若しくは無置換のアミン基、置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、gは0以上4以下の整数であり、R1~R4、a~c及びeは化学式1で定義した通りである。
化学式7において、Ar1~Ar2はそれぞれ独立して置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、fは0以上3以下の整数であり、X1~X5、R1~R5、a、c、e、及びgは化学式6で定義した通りである。
[化合物群1]
[化合物群2]
[第1化合物群]
[第2化合物群]
まず、本実施形態による多環化合物の合成方法について、化合物A-1、化合物A-2、及び化合物A-3の合成方法を例示して詳しく説明する。また、以下で説明する多環化合物の合成法は一例であって、本発明の実施形態による多環化合物の合成法は下記実施例に限らない。
一実施形態に係る多環化合物A-1は、例えば、下記反応式によって合成される。
一実施形態に係る多環化合物A-2は、例えば、下記反応式によって合成される。
一実施形態に係る多環化合物A-3は、例えば、下記反応式によって合成される。
(有機電界発光素子の製作)
多環化合物を発光層に含む一実施例の有機電界発光素子を下記方法で製造した。上述した化合物A-1、化合物A-2、及び化合物A-3の多環化合物を発光層材料として使用し、実施例1~実施例3の有機電界発光素子を製作した。また、比較例化合物X-1~化合物X-5を発光層材料として使用し、比較例1~比較例5の有機電界発光素子を製作した。下記では、実施例1~実施例3、及び比較例1~比較例5において、発光層に使用された化合物を示した。
[実施例化合物]
[比較例化合物]
実施例及び比較例による有機電界発光素子の特性を評価するために、最大発光波長(nm)及び外部量子効率(%)を測定した。浜松ホトニクス社製C9920-11輝度配向特性測定装置を利用して測定した。尚、素子寿命については、比較例1の有機電界発光素子の素子寿命を100%として、実施例1~3及び比較例2~4の有機電界発光素子の素子寿命を相対的に示した。
EL2:第2電極 HTR:正孔輸送領域
EML:発光層 ETR:電子輸送領域
Claims (6)
- 下記化学式2で表される多環化合物。
・・・(化学式2)
(前記化学式2において、
X1~X10はそれぞれ独立して炭素または窒素であり、
R1~R3は、それぞれ独立して重水素原子、置換若しくは無置換のアミノ基、置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、
R4~R5は、それぞれ独立して水素原子、重水素原子、置換若しくは無置換のアミノ基、置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、
aは0以上4以下の整数であり、
cは0以上3以下の整数であり、
d及びeはそれぞれ独立して0以上5以下の整数であり、
Ar1~Ar2はそれぞれ独立して置換若しくは無置換の環形成炭素数6以上30以下のアリール基、または置換若しくは無置換の環形成炭素数2以上30以下のヘテロアリール基であり、
fは0以上3以下の整数であり、
X1~X10がいずれも炭素であれば、R4~R5のうち少なくとも一つは無置換の環形成炭素数2以上30以下のNを含むヘテロアリール基である。) - 前記化学式1で表される化合物は、下記第1化合物群に示した化合物のうちいずれか一つである請求項1に記載の多環化合物。
[第1化合物群]
- 前記化学式1で表される化合物は、下記第2化合物群に示した化合物のうちいずれか一つである請求項1に記載の多環化合物。
[第2化合物群]
- 第1電極と、
前記第1電極の上に配置された正孔輸送領域と、
前記正孔輸送領域の上に配置され、請求項1乃至請求項3のうちいずれか一項に記載の多環化合物を含む発光層と、
前記発光層の上に配置される電子輸送領域と、
前記電子輸送領域の上に配置される第2電極と、
を含み、
前記第1電極及び前記第2電極はそれぞれ独立して、Ag,Mg,Cu,Al,Pt,Pd,Au,Ni,Nd,Ir,Cr,Li,Ca,LiF/Ca,LiF/Al,Mo
,Ti,In,Sn及びZnからなる群から選択される一つ、これらの中から選択される複数を含む化合物、これらに中から選択される複数を含む混合物、又はこれらの中から選択される1つ以上の酸化物を含む、有機電界発光素子。 - 前記発光層はホスト及びドーパントを含む遅延蛍光発光層であり、
前記ドーパントは前記多環化合物である請求項4に記載の有機電界発光素子。 - 前記発光層は、青色光を放出する熱活性遅延蛍光発光層である請求項4に記載の有機電界発光素子。
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