JP5656438B2 - 新規ベンゾ[b]クリセン化合物及びこれを有する有機発光素子 - Google Patents
新規ベンゾ[b]クリセン化合物及びこれを有する有機発光素子 Download PDFInfo
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- JP5656438B2 JP5656438B2 JP2010082816A JP2010082816A JP5656438B2 JP 5656438 B2 JP5656438 B2 JP 5656438B2 JP 2010082816 A JP2010082816 A JP 2010082816A JP 2010082816 A JP2010082816 A JP 2010082816A JP 5656438 B2 JP5656438 B2 JP 5656438B2
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- Prior art keywords
- benzo
- group
- chrysene
- compound
- light emitting
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- YYGRIGYJXSQDQB-UHFFFAOYSA-N anthrathrene Natural products C1=CC=CC2=CC=C3C4=CC5=CC=CC=C5C=C4C=CC3=C21 YYGRIGYJXSQDQB-UHFFFAOYSA-N 0.000 title claims description 125
- -1 benzo [b] chrysene compound Chemical class 0.000 title claims description 97
- 239000000463 material Substances 0.000 claims description 54
- 239000004215 Carbon black (E152) Substances 0.000 claims description 31
- 229930195733 hydrocarbon Natural products 0.000 claims description 31
- 125000000217 alkyl group Chemical group 0.000 claims description 17
- WDECIBYCCFPHNR-UHFFFAOYSA-N Chrysene Natural products C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 claims description 14
- 150000002894 organic compounds Chemical class 0.000 claims description 11
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 9
- 125000005605 benzo group Chemical group 0.000 claims 1
- 239000010410 layer Substances 0.000 description 92
- 150000001875 compounds Chemical class 0.000 description 70
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 27
- 238000006243 chemical reaction Methods 0.000 description 24
- 239000010408 film Substances 0.000 description 21
- 239000000243 solution Substances 0.000 description 21
- 125000001424 substituent group Chemical group 0.000 description 21
- 238000004770 highest occupied molecular orbital Methods 0.000 description 19
- 239000000758 substrate Substances 0.000 description 18
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 16
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Natural products C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 15
- 239000012043 crude product Substances 0.000 description 15
- 239000002904 solvent Substances 0.000 description 14
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- 238000002347 injection Methods 0.000 description 11
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 9
- 238000003786 synthesis reaction Methods 0.000 description 9
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 8
- 235000002597 Solanum melongena Nutrition 0.000 description 8
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- 239000011521 glass Substances 0.000 description 6
- 125000001624 naphthyl group Chemical group 0.000 description 6
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 6
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- 229910052938 sodium sulfate Inorganic materials 0.000 description 6
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- 125000005578 chrysene group Chemical group 0.000 description 4
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 4
- FPKCTSIVDAWGFA-UHFFFAOYSA-N 2-chloroanthracene-9,10-dione Chemical compound C1=CC=C2C(=O)C3=CC(Cl)=CC=C3C(=O)C2=C1 FPKCTSIVDAWGFA-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- 101100256223 Caenorhabditis elegans cho-1 gene Proteins 0.000 description 3
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- 238000000862 absorption spectrum Methods 0.000 description 3
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- 125000003118 aryl group Chemical group 0.000 description 3
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- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
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- 125000005561 phenanthryl group Chemical group 0.000 description 3
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 3
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- 239000002356 single layer Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000001771 vacuum deposition Methods 0.000 description 3
- DGUWACLYDSWXRZ-UHFFFAOYSA-N (2-formylphenyl)boronic acid Chemical compound OB(O)C1=CC=CC=C1C=O DGUWACLYDSWXRZ-UHFFFAOYSA-N 0.000 description 2
- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 150000001846 chrysenes Chemical class 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000004050 hot filament vapor deposition Methods 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
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- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229940098779 methanesulfonic acid Drugs 0.000 description 2
- SJFNDMHZXCUXSA-UHFFFAOYSA-M methoxymethyl(triphenyl)phosphanium;chloride Chemical compound [Cl-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(COC)C1=CC=CC=C1 SJFNDMHZXCUXSA-UHFFFAOYSA-M 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- LXNAVEXFUKBNMK-UHFFFAOYSA-N palladium(II) acetate Substances [Pd].CC(O)=O.CC(O)=O LXNAVEXFUKBNMK-UHFFFAOYSA-N 0.000 description 2
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 2
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 2
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- 229910000160 potassium phosphate Inorganic materials 0.000 description 2
- 235000011009 potassium phosphates Nutrition 0.000 description 2
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 2
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- 239000000047 product Substances 0.000 description 2
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- VNFWTIYUKDMAOP-UHFFFAOYSA-N sphos Chemical compound COC1=CC=CC(OC)=C1C1=CC=CC=C1P(C1CCCCC1)C1CCCCC1 VNFWTIYUKDMAOP-UHFFFAOYSA-N 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 2
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- BOCJQSFSGAZAPQ-UHFFFAOYSA-N 1-chloroanthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2Cl BOCJQSFSGAZAPQ-UHFFFAOYSA-N 0.000 description 1
- MJXODPSKDFTWID-UHFFFAOYSA-N 13-naphthalen-2-ylpentacyclo[12.8.0.02,11.04,9.015,20]docosa-1(14),2,4,6,8,10,12,15,17,19,21-undecaene Chemical compound C1=CC=CC2=C3C(C4=CC5=CC=CC=C5C=C4)=CC4=CC5=CC=CC=C5C=C4C3=CC=C21 MJXODPSKDFTWID-UHFFFAOYSA-N 0.000 description 1
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- 239000011737 fluorine Substances 0.000 description 1
- KFIFDKLIFPYSAZ-UHFFFAOYSA-N formyloxy(phenyl)borinic acid Chemical compound O=COB(O)C1=CC=CC=C1 KFIFDKLIFPYSAZ-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000001072 heteroaryl group Chemical group 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 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
- 239000011133 lead Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- SJCKRGFTWFGHGZ-UHFFFAOYSA-N magnesium silver Chemical compound [Mg].[Ag] SJCKRGFTWFGHGZ-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 238000004776 molecular orbital Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 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
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 125000005184 naphthylamino group Chemical group C1(=CC=CC2=CC=CC=C12)N* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000002868 norbornyl group Chemical group C12(CCC(CC1)C2)* 0.000 description 1
- 150000004866 oxadiazoles Chemical class 0.000 description 1
- 150000007978 oxazole derivatives Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 150000005041 phenanthrolines Chemical class 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 150000004986 phenylenediamines Chemical class 0.000 description 1
- NHKJPPKXDNZFBJ-UHFFFAOYSA-N phenyllithium Chemical compound [Li]C1=CC=CC=C1 NHKJPPKXDNZFBJ-UHFFFAOYSA-N 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical class N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000553 poly(phenylenevinylene) Chemical class 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 150000004033 porphyrin derivatives Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003216 pyrazines Chemical class 0.000 description 1
- 150000003220 pyrenes Chemical class 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 150000003252 quinoxalines Chemical class 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- YYMBJDOZVAITBP-UHFFFAOYSA-N rubrene Chemical compound C1=CC=CC=C1C(C1=C(C=2C=CC=CC=2)C2=CC=CC=C2C(C=2C=CC=CC=2)=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 YYMBJDOZVAITBP-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 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
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 229940042055 systemic antimycotics triazole derivative Drugs 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003518 tetracenes Chemical class 0.000 description 1
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 238000001269 time-of-flight mass spectrometry Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 1
- 125000005259 triarylamine group Chemical group 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
- C07C15/20—Polycyclic condensed hydrocarbons
-
- 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
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/623—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing five rings, e.g. pentacene
-
- 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
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/626—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/52—Ortho- or ortho- and peri-condensed systems containing five condensed rings
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- 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
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/624—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing six or more rings
-
- 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
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
- H10K85/633—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/917—Electroluminescent
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Electroluminescent Light Sources (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
本発明のベンゾ[b]クリセン化合物は、下記一般式[1]で示される。
式[1]において、Arは置換あるいは無置換の炭化水素芳香族基を表す。
なお式[2]において置換基Arは、式[1]中のArと同一の置換基である。
本発明に係るベンゾ[b]クリセン化合物は、S1エネルギーが低く、HOMO準位が浅い(イオン化ポテンシャルが小さい)化合物である。
次に、本実施形態に係るベンゾ[b]クリセン化合物の合成方法について説明する。
すなわち、2−クロロアントラキノンと所望のアリール基に応じたアリールリチウムを用いて2−クロロ−9,10−ジアリールアントラセンを合成し、ベンズアルデヒドを導入後、Wittig反応と酸環化を行うことで7,12−ジアリールベンゾ[b]クリセンを合成することができる。ベンゾ[b]クリセンの1位、2位、9位、および10位に置換基を導入する場合は、あらかじめ置換基、あるいは置換基導入用の活性基が導入されたクロロアントラキノンおよびホルミルフェニルボロン酸を用いればよい。
以下、本実施形態に係るベンゾ[b]クリセン化合物の具体的な構造式を例示する。
上記一般式[5]で示した化合物は、置換フェニル基のα位が無置換であるという点でA01と構造が共通している。そのためベンゾ[b]クリセン環と置換フェニル基との二面角の大きさがA01と同等なので、S1エネルギーの大きさもA01と同等であるという性質がある。
上記一般式[6]で示した化合物は、置換基がナフチル基と同程度のπ共役面を有しているという点でB01と構造が共通している。そのためベンゾ[b]クリセン環から置換基へのπ共役の広がりがB01と同等なので、S1エネルギーの大きさもB01と同等であるという性質がある。
次に、本発明に係る有機発光素子について説明する。
(1)中間体ANCl−1の合成
中間体Diol−1:4.26g(10.7mmol)
ヨウ化カリウム:16.5g(99.4mmol)
NaH2PO2・H2O:18.7g(176mmol)
酢酸:160mL
この反応溶液を攪拌しながら3時間加熱還流させた。反応終了後、室温まで冷却してから反応溶液に水を加え、析出物をろ取して粗生成物の黄白色粉を得た。続いてこの粗生成物をメタノール/エタノール混合溶媒で洗浄して、中間体ANCl−1を3.80g得た(収率97%)。
中間体ANCl−1:400mg(1.10mmol)
2−ホルミルフェニルボロン酸:197mg(1.32mmol)
酢酸パラジウム(II):25mg(0.11mmol)
ジシクロヘキシル(2’,6’−ジメトキシビフェニル−2−イル)ホスフィン:113mg(0.27mmol)
りん酸カリウム:700mg(3.29mmol)
トルエン:20mL
この反応溶液を、窒素下において100℃に加熱し、攪拌しながら15時間反応させた。反応終了後、反応溶液を水で洗浄し、硫酸ナトリウム上で乾燥させた後に濃縮し粗生成物を得た。次にこの粗生成物をシリカゲルカラムクロマトグラフィー(展開溶媒:ヘプタン/クロロホルム=2/1)で精製し、中間体CHO−1を394mg得た(収率83%)。
[MALDI−TOF−MS(マトリックス支援イオン化−飛行時間型質量分析)]
実測値:m/z=430.22 計算値:C34H22=430.17
[1H−NMR(400MHz、CDCl3)]
δ 8.65(d,1H),8.46(d,1H),7.94−7.68(m,5H),7.68−7.47(m,12H),7.47−7.36(m,3H).
また例示化合物A01について、以下の方法でS1エネルギーの測定を行った。例示化合物A01をガラス基板上に加熱蒸着し、膜厚20nmの蒸着薄膜を得た。この蒸着薄膜について、紫外可視分光光度計(日本分光株式会社製V−560)を用いて吸光スペクトルを測定した。得られた吸光スペクトルの吸収端を求めると437nmであり、例示化合物A01のS1エネルギーは2.84eVであった。
上述のS1エネルギーの測定に用いた蒸着薄膜を用いて、光電子分光装置AC−2(理研計器株式会社製)によりイオン化ポテンシャルを測定した。測定の結果、例示化合物A01のイオン化ポテンシャルは5.70eVであった。
(1)中間体ANCl−2の合成
中間体Diol−2:6.68g(13.4mmol)
ヨウ化カリウム:20.7g(124mmol)
NaH2PO2・H2O:23.4g(221mmol)
酢酸:250mL
この反応溶液を攪拌しながら3時間半加熱還流させた。反応終了後、室温まで冷却してから反応溶液に水を加え、析出物をろ取して粗生成物の黄色粉を得た。続いてこの粗生成物をメタノール溶媒で洗浄して、中間体ANCl−2を5.68g得た(収率91%)。
中間体ANCl−2:1.00g(2.15mmol)
2−ホルミルフェニルボロン酸:387mg(2.58mmol)
酢酸パラジウム(II):48mg(0.11mmol)
ジシクロヘキシル(2’,6’−ジメトキシビフェニル−2−イル)ホスフィン:221mg(0.54mmol)
りん酸カリウム:1.37mg(6.45mmol)
トルエン:40mL
この反応溶液を、窒素下において100℃に加熱し、攪拌しながら10時間反応させた。反応終了後、反応溶液を水で洗浄し、硫酸ナトリウム上で乾燥させた後に濃縮し粗生成物を得た。次にこの粗生成物をシリカゲルカラムクロマトグラフィー(展開溶媒:ヘプタン/トルエン=1/1)で精製し、中間体CHO−2を1.12g得た(収率98%)。
[MALDI−TOF−MS]
実測値:m/z=530.27 計算値:C42H26=530.20
[1H−NMR(400MHz、CDCl3)]
δ 8.64(d,1H),8.45(d,1H),8.20−8.00(m,5H),8.00−7.90(m,2H),7.90−7.50(m,15H),7.45−7.33(m,2H).
また例示化合物B01について、実施例1−(3)と同様の方法でS1エネルギーの測定を行ったところ、吸光スペクトルの吸収端は446nmであり、例示化合物B01のS1エネルギーは2.78eVであった。
下記に示す、比較化合物GH01乃至GH03について、実施例1−(3)と同様の方法でS1エネルギーおよびイオン化ポテンシャルの測定を行った。実施例1および2の結果と合わせて、結果を表2に示す。
本実施例では、基板上に順次陽極/ホール輸送層/発光層/電子輸送層/陰極が設けられた構成の有機発光素子において、電子輸送層がイオン化ポテンシャルの異なる二層で構成される素子を、以下に示す方法で作製した。
ホール輸送層(40nm) HTL−1
発光層(30nm) ホスト材料:例示化合物A01、ゲスト材料:GD−7(重量比2%)
電子輸送層1(10nm) ETL−1
電子輸送層2(30nm) ETL−2
金属電極層1(0.5nm) LiF
金属電極層2(100nm) Al
実施例3において、発光層のホスト材料を、例示化合物A01に代えて、例示化合物B01を使用した他は、実施例3と同様の方法で素子を作製した。また得られた素子について実施例3と同様に評価を行った。結果を表3に示す。
実施例3において、発光層のホスト材料を、例示化合物A01に代えて、比較化合物GH01を使用した他は、実施例3と同様の方法で素子を作製した。また得られた素子について実施例3と同様に評価を行った。結果を表3に示す。
実施例3において、発光層のホスト材料を、例示化合物A01に代えて、比較化合物GH02を使用した他は、実施例3と同様の方法で素子を作製した。また得られた素子について実施例3と同様に評価を行った。結果を表3に示す。
実施例3において、発光層のホスト材料を、例示化合物A01に代えて、比較化合物GH03を使用した他は、実施例3と同様の方法で素子を作製した。また得られた素子について実施例3と同様に評価を行った。結果を表3に示す。
38 スイッチング素子
311 陽極
312 有機層
313 陰極
Claims (5)
- 一対の電極と、前記一対の電極の間に配置される有機化合物層とを有し、前記有機化合物層は下記一般式[1]で示されることを特徴とするベンゾ[b]クリセン化合物を有することを特徴とする有機発光素子。
〔式[1]において、Arは置換あるいは無置換の炭化水素芳香族基を表す。R1乃至R4は水素原子、置換あるいは無置換のアルキル基、置換あるいは無置換の炭化水素芳香族基からなる群よりそれぞれ独立に選ばれる。〕 - 前記ベンゾ[b]クリセン化合物が下記一般式[2]で示されることを特徴とする請求項1に記載の有機発光素子。
〔式[2]において、Arは前記置換あるいは無置換の炭化水素芳香族基を表す。〕 - 前記ベンゾ[b]クリセン化合物が下記一般式[3]で示されることを特徴とする請求項2に記載の有機発光素子。
〔式[3]において、X1乃至X5は水素原子、置換あるいは無置換のアルキル基、置換あるいは無置換の炭化水素芳香族基からなる群よりそれぞれ独立に選ばれる。〕 - 前記有機化合物層は発光層であり、前記発光層はホスト材料とゲスト材料を有し、前記ホスト材料は前記ベンゾ[b]クリセン化合物であることを特徴とする請求項1乃至3の何れか一項に記載の有機発光素子。
- 請求項1乃至4の何れか一項に記載の有機発光素子と前記有機発光素子と接続されているスイッチング素子とを有する表示装置。
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