WO2009003919A1 - Organische leuchtdioden enthaltend mindestens eine disilylverbindung ausgewählt aus disilylcarbazolen, disilyldibenzofuranen, disilyldibenzothiophenen, disilyldibenzophospholen, disilyldibenzothiophen-s-oxiden und disilyldibenzothiophen-s,s-dioxiden - Google Patents
Organische leuchtdioden enthaltend mindestens eine disilylverbindung ausgewählt aus disilylcarbazolen, disilyldibenzofuranen, disilyldibenzothiophenen, disilyldibenzophospholen, disilyldibenzothiophen-s-oxiden und disilyldibenzothiophen-s,s-dioxiden Download PDFInfo
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- WO2009003919A1 WO2009003919A1 PCT/EP2008/058207 EP2008058207W WO2009003919A1 WO 2009003919 A1 WO2009003919 A1 WO 2009003919A1 EP 2008058207 W EP2008058207 W EP 2008058207W WO 2009003919 A1 WO2009003919 A1 WO 2009003919A1
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- WIPO (PCT)
- Prior art keywords
- substituted
- unsubstituted
- radicals
- aryl
- alkyl
- Prior art date
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 146
- 239000000463 material Substances 0.000 claims abstract description 95
- 239000004020 conductor Substances 0.000 claims abstract description 63
- 239000011159 matrix material Substances 0.000 claims abstract description 40
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 150000003254 radicals Chemical group 0.000 claims description 122
- -1 PR 1 Inorganic materials 0.000 claims description 111
- 125000001424 substituent group Chemical group 0.000 claims description 64
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 52
- 125000000217 alkyl group Chemical group 0.000 claims description 33
- 125000006413 ring segment Chemical group 0.000 claims description 31
- 229910052736 halogen Inorganic materials 0.000 claims description 28
- 125000003118 aryl group Chemical group 0.000 claims description 27
- 125000001072 heteroaryl group Chemical group 0.000 claims description 27
- 125000005842 heteroatom Chemical group 0.000 claims description 22
- 229910052717 sulfur Inorganic materials 0.000 claims description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 229910005965 SO 2 Inorganic materials 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 16
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 11
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 8
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 8
- 150000005840 aryl radicals Chemical group 0.000 claims description 7
- 125000005708 carbonyloxy group Chemical group [*:2]OC([*:1])=O 0.000 claims description 7
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 7
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Substances NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 7
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 7
- 125000003368 amide group Chemical group 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- 229910000085 borane Inorganic materials 0.000 claims description 5
- 125000001841 imino group Chemical group [H]N=* 0.000 claims description 5
- 125000000018 nitroso group Chemical group N(=O)* 0.000 claims description 5
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 claims description 5
- 125000005740 oxycarbonyl group Chemical group [*:1]OC([*:2])=O 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 claims description 5
- 229910000080 stannane Inorganic materials 0.000 claims description 5
- 229940124530 sulfonamide Drugs 0.000 claims description 5
- 150000003456 sulfonamides Chemical class 0.000 claims description 5
- 150000003462 sulfoxides Chemical class 0.000 claims description 5
- 125000005555 sulfoximide group Chemical group 0.000 claims description 5
- 125000002813 thiocarbonyl group Chemical group *C(*)=S 0.000 claims description 5
- UORVGPXVDQYIDP-UHFFFAOYSA-N trihydridoboron Substances B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 150000001642 boronic acid derivatives Chemical class 0.000 claims description 4
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 4
- 229910000086 alane Inorganic materials 0.000 claims description 3
- 150000002431 hydrogen Chemical group 0.000 claims 5
- 230000000007 visual effect Effects 0.000 abstract 2
- 238000005286 illumination Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 261
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 76
- 239000000243 solution Substances 0.000 description 56
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 54
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 53
- MZRVEZGGRBJDDB-UHFFFAOYSA-N n-Butyllithium Substances [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 52
- 239000000203 mixture Substances 0.000 description 32
- 239000000047 product Substances 0.000 description 27
- 238000000034 method Methods 0.000 description 26
- 239000000370 acceptor Substances 0.000 description 25
- 239000000460 chlorine Substances 0.000 description 25
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 24
- 150000002367 halogens Chemical class 0.000 description 23
- 229910052741 iridium Inorganic materials 0.000 description 23
- 229910052751 metal Inorganic materials 0.000 description 23
- 239000002184 metal Substances 0.000 description 23
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 21
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 19
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 17
- 238000003756 stirring Methods 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 16
- 238000003786 synthesis reaction Methods 0.000 description 16
- 238000005160 1H NMR spectroscopy Methods 0.000 description 14
- 229910052731 fluorine Inorganic materials 0.000 description 14
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 229910052786 argon Inorganic materials 0.000 description 12
- HAKJPFBYGDBEEA-UHFFFAOYSA-N triphenyl-(9-phenyl-6-triphenylsilylcarbazol-3-yl)silane Chemical compound C1=CC=CC=C1N1C2=CC=C([Si](C=3C=CC=CC=3)(C=3C=CC=CC=3)C=3C=CC=CC=3)C=C2C2=CC([Si](C=3C=CC=CC=3)(C=3C=CC=CC=3)C=3C=CC=CC=3)=CC=C21 HAKJPFBYGDBEEA-UHFFFAOYSA-N 0.000 description 12
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 11
- 238000006254 arylation reaction Methods 0.000 description 11
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000004440 column chromatography Methods 0.000 description 11
- 238000004770 highest occupied molecular orbital Methods 0.000 description 11
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- 229910052794 bromium Inorganic materials 0.000 description 10
- 150000001716 carbazoles Chemical class 0.000 description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 10
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 10
- 239000007983 Tris buffer Substances 0.000 description 9
- 229910052801 chlorine Inorganic materials 0.000 description 9
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical class [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 description 9
- 125000006239 protecting group Chemical group 0.000 description 9
- 238000006884 silylation reaction Methods 0.000 description 9
- 239000002904 solvent Substances 0.000 description 9
- 230000032258 transport Effects 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 239000000706 filtrate Substances 0.000 description 8
- 150000002739 metals Chemical class 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- MNKYQPOFRKPUAE-UHFFFAOYSA-N chloro(triphenyl)silane Chemical compound C=1C=CC=CC=1[Si](C=1C=CC=CC=1)(Cl)C1=CC=CC=C1 MNKYQPOFRKPUAE-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 235000019439 ethyl acetate Nutrition 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 239000012074 organic phase Substances 0.000 description 7
- 239000002243 precursor Substances 0.000 description 7
- 239000000741 silica gel Substances 0.000 description 7
- 229910002027 silica gel Inorganic materials 0.000 description 7
- 238000006467 substitution reaction Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 description 7
- JBWRZTKHMKVFMQ-UHFFFAOYSA-N 3,6-dibromo-9-phenylcarbazole Chemical compound C12=CC=C(Br)C=C2C2=CC(Br)=CC=C2N1C1=CC=CC=C1 JBWRZTKHMKVFMQ-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 125000003545 alkoxy group Chemical group 0.000 description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 6
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 6
- FIHILUSWISKVSR-UHFFFAOYSA-N 3,6-dibromo-9h-carbazole Chemical compound C1=C(Br)C=C2C3=CC(Br)=CC=C3NC2=C1 FIHILUSWISKVSR-UHFFFAOYSA-N 0.000 description 5
- 0 CCc1cc(*)ccc1 Chemical compound CCc1cc(*)ccc1 0.000 description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 229960000583 acetic acid Drugs 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 125000004104 aryloxy group Chemical group 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000005401 electroluminescence Methods 0.000 description 5
- 239000012362 glacial acetic acid Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 125000000168 pyrrolyl group Chemical group 0.000 description 5
- 125000001544 thienyl group Chemical group 0.000 description 5
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 description 4
- STTGYIUESPWXOW-UHFFFAOYSA-N 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline Chemical compound C=12C=CC3=C(C=4C=CC=CC=4)C=C(C)N=C3C2=NC(C)=CC=1C1=CC=CC=C1 STTGYIUESPWXOW-UHFFFAOYSA-N 0.000 description 4
- GEQBRULPNIVQPP-UHFFFAOYSA-N 2-[3,5-bis(1-phenylbenzimidazol-2-yl)phenyl]-1-phenylbenzimidazole Chemical compound C1=CC=CC=C1N1C2=CC=CC=C2N=C1C1=CC(C=2N(C3=CC=CC=C3N=2)C=2C=CC=CC=2)=CC(C=2N(C3=CC=CC=C3N=2)C=2C=CC=CC=2)=C1 GEQBRULPNIVQPP-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- WIHKEPSYODOQJR-UHFFFAOYSA-N [9-(4-tert-butylphenyl)-6-triphenylsilylcarbazol-3-yl]-triphenylsilane Chemical compound C1=CC(C(C)(C)C)=CC=C1N1C2=CC=C([Si](C=3C=CC=CC=3)(C=3C=CC=CC=3)C=3C=CC=CC=3)C=C2C2=CC([Si](C=3C=CC=CC=3)(C=3C=CC=CC=3)C=3C=CC=CC=3)=CC=C21 WIHKEPSYODOQJR-UHFFFAOYSA-N 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 125000004414 alkyl thio group Chemical group 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 4
- 150000001502 aryl halides Chemical class 0.000 description 4
- 125000002619 bicyclic group Chemical group 0.000 description 4
- 239000002800 charge carrier Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010511 deprotection reaction Methods 0.000 description 4
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- MILUBEOXRNEUHS-UHFFFAOYSA-N iridium(3+) Chemical class [Ir+3] MILUBEOXRNEUHS-UHFFFAOYSA-N 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- DBDJXGIDPXHUGS-UHFFFAOYSA-N triphenyl-(6-triphenylsilyl-9h-carbazol-3-yl)silane Chemical compound C1=CC=CC=C1[Si](C=1C=C2C3=CC(=CC=C3NC2=CC=1)[Si](C=1C=CC=CC=1)(C=1C=CC=CC=1)C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 DBDJXGIDPXHUGS-UHFFFAOYSA-N 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 238000007126 N-alkylation reaction Methods 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- 230000031709 bromination Effects 0.000 description 3
- 238000005893 bromination reaction Methods 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000005595 deprotonation Effects 0.000 description 3
- 238000010537 deprotonation reaction Methods 0.000 description 3
- 150000002390 heteroarenes Chemical class 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 125000002883 imidazolyl group Chemical group 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- WPHGSKGZRAQSGP-UHFFFAOYSA-N methylenecyclohexane Natural products C1CCCC2CC21 WPHGSKGZRAQSGP-UHFFFAOYSA-N 0.000 description 3
- 125000002950 monocyclic group Chemical group 0.000 description 3
- 239000012044 organic layer Substances 0.000 description 3
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 description 3
- 125000002971 oxazolyl group Chemical group 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 description 3
- 125000003226 pyrazolyl group Chemical group 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 125000001425 triazolyl group Chemical group 0.000 description 3
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 3
- IVQMKRVPLRKRLZ-UHFFFAOYSA-N (3,6-dibromocarbazol-9-yl)-triphenylsilane Chemical compound C12=CC=C(Br)C=C2C2=CC(Br)=CC=C2N1[Si](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 IVQMKRVPLRKRLZ-UHFFFAOYSA-N 0.000 description 2
- QPTWWBLGJZWRAV-UHFFFAOYSA-N 2,7-dibromo-9-H-carbazole Natural products BrC1=CC=C2C3=CC=C(Br)C=C3NC2=C1 QPTWWBLGJZWRAV-UHFFFAOYSA-N 0.000 description 2
- GTVLPQMCDKDSLC-UHFFFAOYSA-N 3,6-dibromo-9-(3-methoxyphenyl)carbazole Chemical compound COC1=CC=CC(N2C3=CC=C(Br)C=C3C3=CC(Br)=CC=C32)=C1 GTVLPQMCDKDSLC-UHFFFAOYSA-N 0.000 description 2
- FLLMODIOUCBEQC-UHFFFAOYSA-N 3-(3,6-dibromocarbazol-9-yl)benzonitrile Chemical compound C12=CC=C(Br)C=C2C2=CC(Br)=CC=C2N1C1=CC=CC(C#N)=C1 FLLMODIOUCBEQC-UHFFFAOYSA-N 0.000 description 2
- ZVFQEOPUXVPSLB-UHFFFAOYSA-N 3-(4-tert-butylphenyl)-4-phenyl-5-(4-phenylphenyl)-1,2,4-triazole Chemical compound C1=CC(C(C)(C)C)=CC=C1C(N1C=2C=CC=CC=2)=NN=C1C1=CC=C(C=2C=CC=CC=2)C=C1 ZVFQEOPUXVPSLB-UHFFFAOYSA-N 0.000 description 2
- YPVKVRFKWOXUQF-UHFFFAOYSA-N 3-carbazol-9-ylbenzonitrile Chemical compound N#CC1=CC=CC(N2C3=CC=CC=C3C3=CC=CC=C32)=C1 YPVKVRFKWOXUQF-UHFFFAOYSA-N 0.000 description 2
- DHDHJYNTEFLIHY-UHFFFAOYSA-N 4,7-diphenyl-1,10-phenanthroline Chemical compound C1=CC=CC=C1C1=CC=NC2=C1C=CC1=C(C=3C=CC=CC=3)C=CN=C21 DHDHJYNTEFLIHY-UHFFFAOYSA-N 0.000 description 2
- 125000003860 C1-C20 alkoxy group Chemical group 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
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- 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
- VUPBSZJVARHEPI-UHFFFAOYSA-N triphenyl-(1-phenyl-6-triphenylsilyl-9h-carbazol-3-yl)silane Chemical compound C1=CC=CC=C1C1=CC([Si](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=CC2=C1NC1=CC=C([Si](C=3C=CC=CC=3)(C=3C=CC=CC=3)C=3C=CC=CC=3)C=C12 VUPBSZJVARHEPI-UHFFFAOYSA-N 0.000 description 1
- COHQQWZJNAJBJP-UHFFFAOYSA-N triphenyl-(8-triphenylsilyldibenzofuran-2-yl)silane Chemical compound C1=CC=CC=C1[Si](C=1C=C2C3=CC(=CC=C3OC2=CC=1)[Si](C=1C=CC=CC=1)(C=1C=CC=CC=1)C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 COHQQWZJNAJBJP-UHFFFAOYSA-N 0.000 description 1
- RXKXRKMEOMPFJD-UHFFFAOYSA-N triphenyl-(8-triphenylsilyldibenzothiophen-2-yl)silane Chemical compound C1=CC=CC=C1[Si](C=1C=C2C3=CC(=CC=C3SC2=CC=1)[Si](C=1C=CC=CC=1)(C=1C=CC=CC=1)C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 RXKXRKMEOMPFJD-UHFFFAOYSA-N 0.000 description 1
- AKQNYQDSIDKVJZ-UHFFFAOYSA-N triphenylsilane Chemical class C1=CC=CC=C1[SiH](C=1C=CC=CC=1)C1=CC=CC=C1 AKQNYQDSIDKVJZ-UHFFFAOYSA-N 0.000 description 1
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Definitions
- Organic light-emitting diodes containing at least one disilyl compound selected from disilylcarbazoles, disilyldibenzofurans, disilyldibenzothiophenes, disilyldibenzophospholes, disilyldibenzothiophene-S-oxides and disilyldibenzothiophene-S, S-dioxides
- the present invention relates to an organic light-emitting diode comprising an anode An and a cathode Ka and a light-emitting layer E arranged between the anode An and the cathode Ka and optionally at least one further layer, wherein the light-emitting layer E and / or the at least one further layer comprises at least one compound selected from disilylcarbazoles, disilyldibenzofurans, disilyldibenzothiophenes, disilyldibenzophospholes, disilyldibenzothiophene-S-oxides and disilyldibenzothiophene-S, S-dioxides, a light-emitting layer containing at least one of the aforementioned compounds, the use of above-mentioned compounds as matrix material, hole / Excitonenblockermaterial, electron / Excitonenblockermaterial, hole injection material, electron injection material, hole conductor material and / or Elektronenleiterma- material and
- OLEDs organic light emitting diodes
- the property of materials is used to emit light when excited by electric current.
- OLEDs are of particular interest as an alternative to cathode ray tubes and to liquid crystal displays for the manufacture of flat panel displays. Due to the very compact design and the intrinsically low power consumption, devices containing OLEDs are particularly suitable for mobile applications, for example for applications in mobile phones, laptops, etc., as well as for lighting.
- OLEDs As light-emitting materials (emitters), phosphorescent materials (phosphorescence emitters) can be used in addition to fluorescent materials (fluorescence emitters).
- the phosphorescence emitters are usually organometallic complexes which, in contrast to the fluorescence emitters which exhibit singlet emission, exhibit triplet emission (triplet emitters) (MA Baldow et al., Appl. Phys. Lett. 1999, 75, 4 to 6).
- triplet emitter phosphorescence emitter
- energy and power efficiency is possible.
- organometallic To implement triplet emitters (phosphorescence emitters) in practice it is necessary to provide device compositions that have a high operating life, good efficiency, high stability to thermal stress and low operating and operating voltage.
- Such device compositions may contain, for example, special matrix materials in which the actual light emitter is present in distributed form.
- the compositions may contain blocker materials, wherein hole, excitation and / or electron blockers may be present in the device compositions.
- the device compositions may further comprise hole injection materials and / or electron injection materials and / or hole conductor materials and / or electron conductor materials. The selection of the above-mentioned materials, which are used in combination with the actual light emitter, has a significant influence, inter alia, on the efficiency and the lifetime of the OLEDs.
- US 2005/0238919 A1 relates to an organic light-emitting diode which contains at least one aryl compound which contains two or more silicon atoms.
- the materials mentioned in US 2005/0238919 A1 are preferably used as matrix materials in the light-emitting layer.
- Yang et al. Angew. Chem. 2007, 119, 2470 to 2473 relates to blue light-emitting heteroleptic iridium (III) complexes which are suitable for use in phosphorescent O-LEDs.
- hole transport material and exciton blocker material which lies between hole conductor and emitter layer, in the examples according to Yang et al. 9- (4-tert-butylphenyl) -3,6-bis (triphenylsilyl) carbazole in addition to 9- (4-tert-butylphenyl) -3,6-bis (triphenylsilyl) carbazole used as a matrix material.
- JP 2004253298 A relates to white light-emitting organic light-emitting diodes in which substituted triphenylsilanes are used as matrix materials.
- the object of the present application over the prior art is therefore to provide novel device compositions for OLEDs that contain the novel materials for improving the performance of the OLED.
- the materials suitable for the novel device compositions should be easily accessible and accessible Combination with the emitter (s) cause good efficiencies and good lifetimes in O-LEDs.
- an organic light-emitting diode comprising an anode An and a cathode Ka and a light-emitting layer E arranged between the anode An and the cathode Ka and optionally at least one further layer selected from the group consisting of: at least a block layer for electrons / excitons, at least one block layer for holes / excitons, at least one hole injection layer, at least one hole conductor layer, at least one electron injection layer and at least one electron conductor layer, characterized in that the organic light-emitting diode contains at least one compound of the general formula I. which is present in the light-emitting layer E and / or in the at least one further layer,
- X is NR 1 , S, O, PR 1 , SO 2 or SO;
- R 1 is substituted or unsubstituted C 1 -C 20 -alkyl, substituted or unsubstituted C 6 -C 30 -arVl or substituted or unsubstituted heteroaryl having 5 to 30 ring atoms;
- R 2, R 3, R 4, R 5, R 6, R 7 each independently substituted or unsubstituted C 2 o alkyl or substituted or unsubstituted C 6 -C 3 o-aryl, or a structure of the general formula (c)
- R a , R b are each independently substituted or unsubstituted dC 2 o-alkyl, substituted or unsubstituted C 6 -C 30 -aryl, substituted or unsubstituted heteroaryl having 5 to 30 ring atoms or a substituent with donor or acceptor selected from the group consisting of: Cr C 20 alkoxy, C 6 -C 30 aryloxy, C r C 2 o-alkylthio, C 6 -C 3 o-arylthio, SiR 14 R 15 R 15,
- R 14 , R 15 , R 16 are independently substituted or unsubstituted dC 20 alkyl or substituted or unsubstituted C 6 -C 30 alkyl; q, r independently of one another are O, 1, 2 or 3; in which case, when q or r is O, all substitutable positions of the aryl radical are substituted by hydrogen, where the radicals and indices in the group of the formula (c) X '', R 5 '', R 6 '', R 7 '", R a " ⁇
- R b " ⁇ q '" and r'"independently of one another have the meanings given for the radicals and indices of the compounds of the general formula (I) X, R 5 , R 6 , R 7 , R a , R b , q and r in which case, when the compound of the general formula (I) is present exclusively in the light-emitting layer or in the light-emitting layer and in the hole conductor layer and the group X is NR 1 , at least one of the radicals R 1 to R 7 , R a or R b in the compounds of the formula (I) contains at least one heteroatom
- the compounds of the general formula (I) are readily available and have, both when used as matrix materials in the light-emitting layer E and in use in at least one of the further layers of an OLED have good efficiencies when used in OLEDs and are suitable for providing OLEDs with a long service life.
- the compounds of the formula (I) can be used either as a matrix in the light-emitting layer E, as a hole / exciton blocker, as an electron / exciton blocker, as hole injection materials, as electron injection materials, as a hole conductor and / or or used as an electron conductor.
- a hole / exciton blocker as an electron / exciton blocker
- hole injection materials as electron injection materials
- hole conductor and / or or used as an electron conductor are known to the person skilled in the art and are mentioned, for example, in WO 2005/1 13704 or WO 2005/019373.
- the organic light-emitting diode (OLED) according to the invention has the following structure: an anode (An) and a cathode (Ka) and a light-emitting layer E arranged between the anode (An) and the cathode (Ka) and optionally at least one further layer selected from the group consisting of: at least one block layer for electrons / excitons, at least one block layer for holes / excitons, at least one hole injection layer, at least one hole conductor layer, at least one electron injection layer and at least one electron conductor layer ,
- Electron / exciton blocker, hole / exciton blocker, hole injection, hole line, electron injection, electron conduction) are combined in a layer and z. B. be taken over by a single material present in this layer material.
- a material employed in the hole-conductor layer may concurrently block excitons and / or electrons.
- the individual of the abovementioned layers of the OLED can in turn be made up of two or more layers.
- the hole-conductor layer may be composed of a layer into which holes are injected from the electrode and a layer that transports the holes away from the hole-injecting layer into the light-emitting layer.
- the electron conducting layer may also consist of several layers, for example a layer in which electrons are injected through the electrode and a layer which receives electrons from the electron injection layer and transports them into the light-emitting layer. These layers are selected in each case according to factors such as energy level, temperature resistance and charge carrier mobility, as well as energy difference of said layers with the organic layers or the metal electrodes.
- the person skilled in the art is able to choose the structure of the OLEDs in such a way that it is optimally adapted to the organic compounds used according to the invention as emitter substances.
- z. B. the HOMO (highest occupied molecular orbital) of the hole conductor layer with the work function of the anode to be aligned, and the LUMO (lowest unoccupied molecular orbital) of the electron conductor layer should be aligned with the work function of the cathode, as far as the aforementioned layers in the inventive OLEDs are present.
- the inventive OLED can, for. B. - in a preferred embodiment - be composed of the following layers: 1. anode
- the OLED does not have all of the layers mentioned, for example, an OLED having the layers (1) (anode), (3) (light-emitting layer), and (6) (cathode) is also suitable the functions of the layers (2) (hole conductor layer) and (4) (hole / exciton block layer) and (5) (electron conductor layer) are taken over by the adjacent layers.
- OLEDs comprising layers (1), (2), (3) and (6) or layers (1), (3), (4), (5) and (6) are also suitable.
- the OLEDs between the anode (1) and the hole conductor layer (2) may have a block layer for electrons / excitons.
- the anode (1) is an electrode that provides positive charge carriers.
- it may be constructed of materials including a metal, a mixture of various metals, a metal alloy, a metal oxide, or a mixture of various metal oxides.
- the anode may be a conductive polymer.
- Suitable metals include the metals of groups Ib, IVa, Va and VIa of the Periodic Table of the Elements and the transition metals of the group Villa.
- mixed metal oxides of groups IIb, IMb and IVb of the Periodic Table of the Elements for example indium tin oxide (ITO), are generally used.
- the anode (1) contains an organic material, for example polyaniline, as described for example in Nature, Vol. 357, pages 477 to 479 (June 11, 1992). At least either the anode or the cathode should be at least partially transparent in order to be able to decouple the light formed.
- the material used for the anode (1) is preferably ITO.
- Suitable hole conductor materials for the layer (2) of the OLEDs according to the invention are disclosed, for example, in Kirk-Othmer Encyclopedia of Chemical Technology, 4th Edition, Vol. 18, pages 837 to 860, 1996. Both hole transporting molecules and polymers can be used as hole transport material.
- Commonly used hole-transporting molecules are selected from the group consisting of tris- [N- (1-naphthyl) -N- (phenylamino)] triphenylamine (1-naphDATA), 4,4'-bis [N- (1-naphthyl) -N-phenyl-amino] biphenyl ( ⁇ -NPD), N, N'-diphenyl-N, N'-bis (3-methylphenyl) - [1, 1'-biphenyl] -4,4'-diamine (TPD ), 1, 1-bis [(di-4-tolylamino) phenyl] cyclohexane (TAPC), N, N'-bis (4-methylphenyl) -N, N'-bis (4-ethylphenyl) - [1, 1 '- (3,3'-dimethyl) biphenyl] -4,4'-diamine (ETPD), tetrakis- (3-methyl
- hole transporting polymers are selected from the group consisting of polyvinyl carbazoles, (phenylmethyl) polysilanes and polyanilines. It is also possible to obtain solvent-transporting polymers by doping hole transporting molecules into polymers such as polystyrene and polycarbonate. Suitable hole-transporting molecules are the molecules already mentioned above.
- carbene complexes can be used as hole conductor materials, wherein the band gap of the at least one hole conductor material is generally greater than the band gap of the emitter material used.
- band gap is to be understood as the triplet energy.
- Suitable carbene complexes are e.g. Carbene complexes, as described in WO 2005/019373 A2, WO 2006/056418 A2 and WO 2005/1 13704 and in the earlier not previously published European applications EP 06 1 12 228.9 and EP 06 1 12 198.4.
- the light-emitting layer (3) contains at least one emitter material.
- it may be a fluorescence or phosphorescence emitter, suitable emitter materials being known to the person skilled in the art.
- the at least one emitter material is a phosphorescence emitter.
- the preferably used Phosphoreszenzmitter compounds are based on metal complexes, in particular the complexes of the metals Ru, Rh, Ir, Pd and Pt, especially the complexes of Ir have acquired importance.
- the compounds of the formula I used according to the invention are particularly suitable for use together with such metal complexes.
- the compounds of the formula (I) are Preferred embodiment used as matrix materials and / or hole / exciton and / or electron / exciton blocker materials.
- they are suitable for use as matrix materials and / or hole / exciton and / or electron / exciton blocker materials together with complexes of Ru, Rh, Ir, Pd and Pt, more preferably for use with complexes of Ir ,
- Suitable metal complexes for use in the OLEDs according to the invention are described, for example, in the publications WO 02/60910 A1, US 2001/0015432 A1, US 2001/0019782 A1, US 2002/0055014 A1, US 2002/0024293 A1, US 2002/0048689 A1, EP 1 191 612 A2, EP 1 191 613 A2, EP 1 21 1 257 A2, US 2002/0094453 A1, WO 02/02714 A2, WO 00/70655 A2, WO 01/41512 A1, WO 02/15645 A1, WO 2005 / 019373 A2, WO 2005/113704 A2, WO 2006/1 15301 A1, WO 2006/067074 A1 and WO 2006/056418.
- metal complexes are the commercially available metal complexes tris (2-phenylpyridine) iridium (III), iridium (III) tris (2- (4-tolyl) pyridinato-N, C 2 '), iridium (III) tris (1 phenylisoquinoline), iridium (III) to (2-2'-benzothienyl) pyridinato
- triplet emitters are carbene complexes.
- the compounds of the formula (I) are used in the light-emitting layer as matrix material together with carbene complexes as triplet emitters. Suitable carbene complexes are known to the person skilled in the art and are mentioned in some of the aforementioned applications and below.
- the compounds of the formula (I) are used as hole / exciton blocker material together with carbene complexes as Triplet emitter used.
- the compounds of the formula (I) can furthermore be used both as matrix materials and as hole / exciton blocker materials together with carbene complexes as triplet emitters.
- Suitable metal complexes for use together with the compounds of the formula I as matrix materials and / or hole / exciton and / or electron / exciton blocker materials in OLEDs are therefore also, for example, carbene complexes, as described in WO 2005/019373 A2, WO 2006/056418 A2 and WO 2005/1 13704 and in the older non-prepublished European applications EP 06 112 228.9 and EP 06 1 12 198.4 are described.
- the disclosure of said WO and EP applications is hereby explicitly incorporated by reference and these disclosures are to be considered incorporated into the content of the present application.
- the block layer for holes / excitons (4) can typically have hole blocker materials used in OLEDs, such as 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline
- TPBI phenothiazine S, S-dioxide derivatives and 1,3,5-tris (N-phenyl-2-benzylimidazole) benzene)
- BAIq phenothiazine S, S-dioxide derivatives and 1,3,5-tris (N-phenyl-2-benzylimidazole) benzene)
- TPBI is also useful as an electron-conducting material.
- compounds containing aromatic or heteroaromatic rings containing carbonyl group-containing groups as disclosed in WO2006 / 100298 can be used as a blocking layer for holes / excitons (4) or as matrix materials in the light-emitting layer (3) are used.
- the block layer for holes / excitons may comprise a compound of the general formula (I), with compounds of the formula (I) which are suitable as hole blocker / exciton blocker materials preferably being mentioned below.
- the present invention relates to an OLED according to the invention comprising the layers (1) anode, (2) hole conductor layer, (3) light-emitting layer, (4) block layer for holes / excitons, (5) electron conductor layer and (6 ) Cathode, and optionally further layers, wherein the block layer for holes / excitons contains at least one compound of formula (I).
- the present invention relates to an OLED according to the invention comprising the layers (1) anode, (2) hole conductor layer, (3) light-emitting layer, (4) block layer for holes / excitons, (5) electron layer and 6) cathode, and optionally further layers, wherein the light-emitting layer (3) contains at least at least one compound of the formula (I) and the block layer for holes / excitons at least one compound of the formula (I).
- the present invention relates to an OLED according to the invention comprising the layers (1) anode, (2) hole conductor layer and / or (2 ') blocking layer for electrons / excitons (the OLED can comprise both the layers (2) and (2') and either the layer (2) or the layer (2 ')), (3) light-emitting layer, (4) block layer for holes / excitons, (5) electron conductor layer and (6) cathode, and optionally further layers, wherein the block layer for electrons / excitons and / or the hole conductor layer and optionally the light-emitting layer (3) contains at least one compound of the formula (I).
- hole conductor materials and electron conductor materials some may fulfill several functions.
- some of the electron-conducting materials are simultaneously hole-blocking materials if they have a deep HOMO. These can be z. B. in the block layer for holes / excitons (4) are used.
- the function as a hole / exciton blocker of the layer (5) is taken over, so that the layer (4) may be omitted.
- the charge transport layers can also be electronically doped in order to improve the transport properties of the materials used, on the one hand to make the layer thicknesses more generous (avoidance of pinholes / short circuits) and on the other hand to minimize the operating voltage of the device.
- the hole conductor materials can be doped with electron acceptors, for example phthalocyanines or arylamines such as TPD or TDTA can be doped with tetrafluorotetracyanchinodimethane (F4-TCNQ).
- the electron conductor materials can be doped, for example, with alkali metals, for example Alq 3 with lithium.
- the electronic doping is known to the person skilled in the art and described, for example, in W. Gao, A. Kahn, J.
- the cathode (6) is an electrode which serves to introduce electrons or negative charge carriers.
- Suitable materials for the cathode are selected from the group consisting of alkali metals of group Ia, for example Li, Cs, alkaline earth metals of group IIa, for example calcium, barium or magnesium, metals of group IIb of the Periodic Table of the Elements (old IUPAC version) comprising the lanthanides and actinides, for example samarium.
- metals such as aluminum or indium, as well as combinations of all the metals mentioned.
- lithium-containing organometallic compounds or LiF can be applied between the organic layer and the cathode to reduce the operating voltage.
- the OLED according to the present invention may additionally contain further layers which are known to the person skilled in the art.
- a layer can be applied between the layer (2) and the light-emitting layer (3), which facilitates the transport of the positive charge and / or adapts the band gap of the layers to one another.
- this further layer can serve as a protective layer.
- additional layers may be present between the light-emitting layer (3) and the layer (4) to facilitate the transport of the negative charge and / or to match the band gap between the layers.
- this layer can serve as a protective layer.
- the OLED according to the invention contains at least one of the further layers mentioned below: a hole injection layer between the anode (1) and the hole-transporting layer (2); a block layer for electrons between the hole-transporting layer (2) and the light-emitting layer (3); an electron injection layer between the electron-transporting layer (5) and the cathode (6).
- Suitable materials for the individual layers are known to the person skilled in the art and disclosed, for example, in WO 00/70655. Furthermore, it is possible that some of the layers used in the OLED according to the invention are surface-treated in order to increase the efficiency of the charge carrier transport. The choice of materials for each of these layers is preferably determined by obtaining an OLED having a high efficiency and lifetime.
- the preparation of the OLED according to the invention can be carried out by methods known to the person skilled in the art.
- the OLED according to the invention is produced by successive vapor deposition of the individual layers onto a suitable substrate.
- Suitable substrates are for example glass, inorganic semiconductors or polymer films.
- conventional techniques can be used such as thermal evaporation, chemical vapor deposition (CVD), physical vapor deposition (PVD) and others.
- the organic layers of the OLED can be applied from solutions or dispersions in suitable solvents, using coating techniques known to those skilled in the art.
- the various layers have the following thicknesses: anode (1) 50 to 500 nm, preferably 100 to 200 nm; Hole-conductive layer (2) 5 to 100 nm, preferably 20 to 80 nm, light-emitting layer (3) 1 to 100 nm, preferably 10 to 80 nm, Block layer for holes / excitons (4) 2 to 100 nm, preferably 5 to 50 nm, electron-conducting layer (5) 5 to 100 nm, preferably 20 to 80 nm, cathode (6) 20 to 1000 nm, preferably 30 to 500 nm.
- a. be influenced by the relative thickness of each layer.
- the thickness of the electron transport layer should preferably be chosen such that the position of the recombination zone is tuned to the optical resonator property of the diode and thus to the emission wavelength of the emitter.
- the ratio of the layer thicknesses of the individual layers in the OLED depends on the materials used.
- the layer thicknesses of optionally used additional layers are known to the person skilled in the art. It is possible that the electron-conducting layer and / or the hole-conducting layer have larger thicknesses than the specified layer thicknesses when they are electrically doped.
- the light-emitting layer E and / or at least one of the further layers optionally present in the OLED according to the invention contains at least one compound of the general formula (I). While the at least one compound of the general formula (I) is present in the light-emitting layer E as the matrix material, the at least one compound of the general formula (I) in the at least one further layer of the inventive OLED can each alone or together with at least one of further suitable for the corresponding layers above materials are used.
- Substituted or unsubstituted C 1 -C 20 -alkyl is to be understood as meaning alkyl radicals having 1 to 20 carbon atoms. Cr are preferred to C O alkyl, especially preferably Cr to C 6 alkyl radicals.
- the alkyl radicals can be straight-chain as well as branched or cyclic, the alkyl radicals having at least 3 carbon atoms in the case of cyclic alkyl radicals.
- the alkyl radicals may be selected from the group with one or more substituents consisting of C 1 -C 20 - alkoxy, halogen, preferably F, and C 6 -C 3 o-aryl which may in turn be substituted or unsub- stituiert substituted, be.
- Suitable aryl substituents as well as suitable alkoxy and halogen substituents are mentioned below.
- kyl group Al examples include methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl and octyl, as well as C 6 -C 3 o-aryl, -C 2 o-alkoxy and / or halogen, especially F, substituted derivatives the said alkyl groups, for example CF 3 .
- n-isomers of the radicals mentioned and branched isomers such as isopropyl, isobutyl, isopentyl, sec-butyl, tert-butyl, neopentyl, 3,3-dimethylbutyl, 3-ethylhexyl, etc. are included.
- Preferred alkyl groups are methyl, ethyl, tert-butyl and CF 3 .
- Suitable cyclic alkyl groups which may also be unsubstituted or substituted by the radicals mentioned above with respect to the alkyl groups, are cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl and cyclodecyl.
- it may also be polycyclic ring systems, such as decalinyl, norbornyl, bomanyl or adamantyl.
- Examples include OCH 3 , OC 2 H 5 , OC 3 H 7 , OC 4 H 9 and OC 8 Hi 7 and SCH 3 , SC 2 H 5 , SC 3 H 7 , SC 4 H 9 and SC 8 H 17 , C 3 H 7 , C 4 H 9 and C 8 H 17 include both the n-isomers and branched isomers such as isopropyl, isobutyl, sec-butyl, tert-butyl and 2-ethylhexyl.
- Particularly preferred alkoxy or alkylthio groups are methoxy, ethoxy, n-octyloxy, 2-ethylhexyloxy and SCH 3 .
- Suitable halogen radicals or halogen substituents for the purposes of the present application are fluorine, chlorine, bromine and iodine, preferably fluorine, chlorine and bromine, particularly preferably fluorine and chlorine, very particularly preferably fluorine.
- Suitable pseudohalogen radicals in the context of the present application are CN, SCN, OCN, N 3 and SeCN, CN and SCN being preferred. Most preferred is CN.
- C 6 -C 30 -aryl radicals in the present invention are radicals which are derived from monocyclic, bicyclic or tricyclic aromatics which contain no ring heteroatoms. Unless they are monocyclic systems, the term aryl for the second ring also includes the saturated form (perhydroform) or the partially unsaturated form (for example, the dihydroform or tetrahyroform), as far as the respective forms are known and stable. That is, the term aryl in the present invention includes, for example, bicyclic or tricyclic radicals in which both both and all three radicals are aromatic, as well as bicyclic or tricyclic radicals in which only one ring is aromatic, and tricyclic radicals wherein two rings are aromatic.
- aryl examples include: phenyl, naphthyl, indanyl, 1, 2-dihydronaphthenyl, 1, 4-dihydronaphthenyl, indyl, anthracenyl, phenanthrenyl or 1, 2,3,4-tetrahydronaphthyl.
- Particularly preferred are C 6 -C 0 -aryl, for example phenyl or naphthyl, very particularly preferably C ⁇ -aryl, for example phenyl.
- the C 6 -C 3 O-aryl groups may be unsubstituted or substituted with one or more further radicals. Suitable further radicals are selected from the group consisting of dC 2 o-alkyl, C ⁇ -C 3 o-aryl or substituents with donor or acceptor effect, with suitable substituents with donor or acceptor being mentioned below.
- the C 6 -C 3 are preferably unsubstituted o-aryl radicals or with one or more Ci-C2 o alkoxy, CN, CF 3, F or amino (NR 14 R 15, suitable radicals R 15 and R 14 mentioned above ), substituted. Further preferred substitutions of the C 6 -C 30 aryl radicals are dependent on the intended use of the compounds of the general formula (I) and are mentioned below.
- Suitable C ⁇ -Cso-aryloxy, C6-C o-3 alkylthio radicals are derived accordingly by the aforementioned C 6 -C 30 -aryl radicals l. Particularly preferred are phenoxy and phenylthio.
- Unsubstituted or substituted heteroaryl having 5 to 30 ring atoms are to be understood as meaning monocyclic, bicyclic or tricyclic heteroaromatics, some of which can be derived from the abovementioned aryl in which at least one carbon atom in the aryl skeleton is replaced by a heteroatom.
- Preferred heteroatoms are N, O and S.
- the heteroaryl radicals have 5 to 13 ring atoms.
- the backbone of the heteroaryl radicals selected from systems such as pyridine and five-membered heteroaromatics such as thiophene, pyrrole, imidazole or furan. These backbones may optionally be fused with one or two six-membered aromatic radicals. Suitable fused heteroaromatics are carbazolyl, benzimidazolyl, benzofuryl, dibenzofuryl or dibenzothiophenyl.
- the backbone may be substituted at one, several or all substitutable positions, suitable substituents being the same as those already mentioned under the definition of C 6 -C 30 -aryl.
- the heteroaryl radicals are unsubstituted.
- Suitable heteroaryl radicals are, for example, pyridin-2-yl, pyridin-3-yl, pyridin-4-yl, thiophen-2-yl, thiophen-3-yl, pyrrol-2-yl, pyrrol-3-yl, furan-2 - yl, furan-3-yl and imidazol-2-yl and the corresponding benzanellated radicals, in particular particular carbazolyl, benzimidazolyl, benzofuryl, dibenzofuryl or dibenzothiophenyl.
- Preferred substituents with donor or acceptor action are selected from the group consisting of: C 1 - to C 2 o-alkoxy, preferably C 1 -C 6 -alkoxy, particularly preferably ethoxy or methoxy; C 6 -C 30 -aryloxy, preferably C 6 -C 0 aryloxy, most preferably phenyloxy; SiR 14 R 15 R 16 , wherein R 14 , R 15 and R 16 are preferably each independently substituted or unsubstituted alkyl or substituted or unsubstituted phenyl; more preferably at least one of R 14 , R 15 or R 16 is substituted or unsubstituted phenyl, most preferably at least one of R 14 , R 15 and R 16 is substituted phenyl, suitable substituents being mentioned above; Halogen radicals, preferably F, Cl, Br, particularly preferably F or Cl, very particularly preferably F, halogenated C 1 -C 20 -alkyl radicals,
- CF 3 CH 2 F, CHF 2 or C 2 F 5 ;
- Amino preferably dimethylamino, diethylamino or diphenylamino;
- OH pseudohalogen radicals, preferably CN, SCN or OCN, particularly preferably CN, -C (O) OCi-C 4 -alkyl, preferably -C (O) OMe, P (O) R 2 , preferably P (O) Ph 2 or SO 2 R 2 , preferably SO 2 Ph.
- Very particularly preferred substituents having donor or acceptor selected from the group consisting of methoxy, phenyloxy, halogenated CrC 4 - alkyl, preferably CF 3, CH 2 F, CHF 2, C 2 F 5, halogen, preferably F, CN, SiR 14 R 15 R 16 , where suitable radicals R 14 , R 15 and R 16 are already mentioned, diphenylamino, -C (O) O-C 4 -alkyl, preferably -C (O) OMe, P (O) Ph 2 , SO 2 Ph.
- the abovementioned groups with donor or acceptor action it should not be ruled out that further of the abovementioned radicals and groups may also have a donor or acceptor action.
- the above-mentioned heteroaryl radicals are also donor or acceptor groups and the dC 2 o-alkyl radicals are donor-donating groups.
- radicals R 14 , R 15 and R 16 mentioned in the abovementioned groups with donor or acceptor action have the meanings already mentioned above, ie R 14 , R 15 , R 16 independently of one another
- Ci-C 2 o alkyl or substituted or unsubstituted C 6 -C 30 -aryl suitable and preferred alkyl and aryl radicals are above overall Nannt.
- the radicals R 14 , R 15 and R 16 Ci-C 6 alkyl, z For example, methyl, ethyl or i-propyl, phenyl.
- R 15 and R 16 preferably each independently substituted or unsubstituted d-C2o-alkyl or substituted or unsubstituted phenyl; more preferably at least one of R 14 , R 15 or R 16 is substituted or unsubstituted phenyl, most preferably at least one of R 14 , R 15 and R 16 is substituted phenyl, suitable substituents being mentioned above.
- electron-donating substituents and electron-withdrawing substituents further used in the present application are donor-action substituents (electron-donating substituents) and acceptor-action substituents (electron-withdrawing substituents), respectively.
- Suitable electron-donating and electron-withdrawing substituents are thus those already mentioned above with respect to the substituents with donor or acceptor effect substituents.
- the compounds of the formula (I) are disilyl compounds in which the radicals and indices have the following meanings:
- X is NR 1 , S, O, PR 1 , SO 2 or SO, preferably NR 1 , S, O;
- R 1 is substituted or unsubstituted Ci-C 2 o alkyl, substituted or unsubstituted C 6 -C 3 o-aryl, or substituted or unsubstituted heteroaryl having 5 to 30 ring atoms; preferably substituted or unsubstituted C r
- R 2 , R 3 , R 4 , R 5 , R 6 , R 7 are independently substituted or unsubstituted dC 2 o-alkyl or substituted or unsubstituted C 6 -C 3 o-aryl or a structure of general formula (c); preferably at least one of the radicals R 2, R 3 or R 4 and / or at least one of the radicals R 5, R 6 or R 7 is substituted or unsubstituted C 6 -C 30 -aryl, more preferably substituted or unsubstituted C 6 -C 0 -Aryl, very particularly preferably substituted or unsubstituted phenyl, wherein suitable substituents are mentioned above, and / or one of the radicals R 2 , R 3 or R 4 and / or one of the radicals R 5 , R 5 or R 7 is a radical of Structure (c);
- R a, R b are each independently substituted or unsubstituted C 2 o alkyl, substituted or unsubstituted C 6 -C 3 O-Aiyi, subsituators or unsubstituted heteroaryl having 5 to 30 ring atoms, or a substituent having Do- normal or acceptor, wherein suitable and preferred substituents with donor or acceptor action are mentioned above;
- R 14 , R 15 , R 16 are independently substituted or unsubstituted dC 2 o-alkyl or substituted or unsubstituted C 6 -C 30 -aryl, preferably substituted or unsubstituted C 1 -C 6 -alkyl or substituted or unsubstituted C 6 -C 10 -aryl, wherein R 14 , R 15 and R 16 particularly preferably each independently represent substituted or unsubstituted C 1 -C 20 -alkyl or substituted or unsubstituted phenyl; more preferably, at least one of R 14 , R 15 or R 16 is substituted or unsubstituted phenyl, most preferably at least one of R 14 , R 15 and R 1 is substituted phenyl, suitable substituents being mentioned above;
- q, r are each independently 0, 1, 2 or 3, where, when q or r are 0, all substitutable positions of the aryl radical carry hydrogen atoms, preferably 0.
- the present invention relates to an organic light-emitting diode according to the invention, wherein in the case when the compound of the general formula (I) exists exclusively in the light-emitting layer or in the light-emitting layer and in the hole-conductor layer and the group X NR 1 be - indicates, at least one of the radicals R 1 to R 7 , R a or R b in the compounds of formula (I) contains at least one heteroatom.
- Preferred heteroatoms are N, Si, halogen, in particular F or Cl, O, S or P.
- the heteroatom may be in the form of a substituent on at least one of the radicals R 1 to R 7 , R a or R b or in the form of a Part of a substituent or present in the backbone of at least one of the radicals R 1 to R 7 , R a or R b .
- Suitable substituents or basic skeletons are known to the person skilled in the art and are mentioned under the definitions of the radicals R 1 to R 7 , R a or R b .
- a preferred embodiment of the present invention relates to an organic light-emitting diode according to the present invention, wherein at least one of R 2 , R 3 or R 4 and / or at least one of R 5 , R 6 or R 7 in the compounds of formula (I ) substituted or unsubstituted C 6 -C 3 o-aryl.
- Preferred aryl radicals and their substituents have already been mentioned above.
- a further embodiment of the present invention relates to an organic light-emitting diode according to the invention, in which the compound of the general formula (I) is a 3,6-disilyl-substituted compound of the general formula (Ia):
- X is NR 1 , S, O, PR 1 , SO 2 or SO; preferably NR 1 , S or O; especially NR 1 ;
- R 1 is substituted or unsubstituted Ci-C 2 o alkyl, substituted or unsubstituted C 6 -C 3O -aryl or substituted or unsubstituted heteroaryl having 5 to 30 ring atoms; preferably substituted or unsubstituted C 6 - C 30 aryl, or substituted or unsubstituted C 2 o alkyl more preferably substituted or unsubstituted C 6 -C 0 aryl or unsubstituted C 2 o alkyl, most preferably substituted or unsubstituted phenyl, wherein suitable substituents are mentioned above; R 2 , R 3 , R 4 , R 5 , R 6 , R 7 independently substituted or unsubstituted dC 2 o-alkyl or substituted or unsubstituted C 6 -C 3 o-aryl or a structure of general formula (c); preferably, at least one of the radicals R 2, R 3
- R 8 , R 9 , R 10 , R 11 , R 12 , R 13 independently of one another are hydrogen or the meanings mentioned for R a and R b , that is to say independently of one another substituted or unsubstituted C 1 -C 20 -alkyl, substituted or unsubstituted C ⁇ -Cso -Aryl, substituted or unsubstituted heteroaryl having 5 to 30 ring atoms or a substituent with donor or acceptor effect, wherein suitable substituents with donor or acceptor are mentioned above; preferably hydrogen, substituted or unsubstituted C 6 alkyl, substituted or unsubstituted C 6 -C 0 aryl or SiR 14 R 15 R 16; particularly preferably hydrogen, methyl, ethyl, phenyl, CF 3 or SiR 14 R 15 R 16 where R 14 , R 15 and R 16 preferably independently of one another are substituted or unsubstituted C 1 -C 20 -alkyl
- R 14 , R 15 or R 16 is substituted or unsubstituted phenyl, very particularly preferably at least one of R 14 , R 15 and R 16 is substituted phenyl, suitable substituents being mentioned above; and the further radicals and indices R 14 , R 15 , R 16 have the abovementioned meanings; in which case, when the compound of the general formula (I) is present exclusively in the light-emitting layer or in the light-emitting layer and in the hole layer, and the group X is NR 1 , at least one of the radicals R 1 to R 7 , R a or R b in the compounds of formula (I) contains at least one heteroatom.
- the compounds of the formula (I) used in the organic light-emitting diodes according to the invention for the radicals R 1 to R 7 , R a and R b and the group X have the following meanings:
- R 1 is substituted or unsubstituted C 6 -C 3 o-aryl, or substituted or unsubstituted heteroaryl having 5 to 30 ring atoms, preferably substituted or unsubstituted C 6 -Cio-aryl, more preferably substituted or unsubstituted phenyl, suitable substituents are specified above;
- R 2 , R 3 , R 4 , R 5 , R 6 , R 7 are independently substituted or unsubstituted dC 2 o-alkyl or substituted or unsubstituted C 6 -C 30 -alkyl, or a structure of general formula (c), preferred each independently substituted or unsubstituted C 6 alkyl or substituted or unsubstituted C 6 -C 0 -aryl, more preferably substituted or unsubstituted C 1 - C ⁇ alkyl, or substituted or unsubstituted phenyl; wherein in one embodiment at least one of R 2 , R 3 or R 4 and / or at least one of R 5 , R 6 or R 7 is substituted or unsubstituted C 6 -C 30 -aryl, preferably substituted or unsubstituted C 6 -C 1 0 -aryl, more preferably substituted or unsubstituted phenyl group; preferred substituents being
- R 8, R 9, R 10, R 11, R 12, R 13 are independently hydrogen or have the meanings mentioned for R a and R b, that is independently substituted or unsubstituted C 2 o alkyl, substituted or unsubstituted C 6 - C 30 -aryl, substituted or unsubstituted heteroaryl having 5 to 30 ring atoms o- a substituent with donor or acceptor effect, wherein suitable substituents with donor or acceptor are already mentioned above; preferably hydrogen, substituted or unsubstituted C 1 -C 6 -alkyl, substituted or unsubstituted C 6 -C 10 -aryl or SiR 14 R 15 R 16 ; particularly preferably hydrogen, methyl, ethyl, phenyl, CF 3 or
- R 14 , R 15 , R 16 are independently substituted or unsubstituted C 1 -C 20 -alkyl or substituted or unsubstituted C 6 -C 30 -aryl, preferably substituted or unsubstituted C 1 -C 6 -alkyl, or substituted or unsubstituted C 6 -C 10 -aryl, wherein R 14 , R 15 and R 16 particularly preferably each independently represent substituted or unsubstituted dC ⁇ o-alkyl or substituted or unsubstituted phenyl; at least one of the radicals R 14 , R 15 or R 16 is particularly preferably substituted or unsubstituted phenyl, with very particular preference being given to at least one of the radicals R 14 , R 15 and R 16 are substituted phenyl, suitable substituents being mentioned above; in which case, when the compound of the general formula (I) is present exclusively in the light-emitting layer or in the light-emitting layer
- X in the formulas mentioned under iia) and (iv) is preferably O, S, SO or SO 2 .
- the present invention relates to an organic light emitting diode in which a compound of formula (I) is used, wherein the radical R 1 , and / or at least one of the radicals R 2 , R 3 and R 4 and or at least one of the radicals from the group R 5 , R 6 and R 7 is independently of one another substituted or unsubstituted C 6 -aryl of the following formula:
- R 17 is hydrogen, substituted or unsubstituted C 1 -C 20 -alkyl, substituted or unsubstituted C 6 -C 30 -aryl, substituted or unsubstituted heteroaryl having from 5 to 30 ring atoms, a substituent with donor or acceptor action, suitable substituents with donor or acceptor action mentioned above are, or a radical of the general formula a or b
- X ' is N or P
- the radicals and indices X ", R 2' , R 3 ' , R 4' , R 5 ' , R 5" , R 6' , R 6 " , R 7 , R 7" , R a ' , R a " , R b' , R b" , q ', q ", r' and r" independently represent the radicals and indices X, R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R a , R b , q and r have the meanings mentioned; or one of the radicals R 2 , R 3 or R 4 and / or one of the radicals R 5 , R 6 or R 7 is a radical of the general formula c
- radicals and indices X ''', R 5''' , R 6 '' , R 7 '' , R a '' , R b '', q '''andr''independently of one another denote the radicals and indices X, R 5 , R 6 , R 7 , R a , R b , q and r have mentioned meanings.
- Preferred radicals R 17 are selected from the group consisting of hydrogen, substituted or unsubstituted C 1 -C 6 -alkyl, substituted or unsubstituted
- R 14 , R 15 and R 16 are independently substituted or unsubstituted C 1 to C 6 alkyl or substituted or unsubstituted C 6 to C 10 aryl and, in the case of SiR 14 R 15 R 16 , preferably independently of one another are substituted or unsubstituted C 1 -C 20 -alkyl or substituted or unsubstituted phenyl; most preferably at least one of the radicals R 14 , R 15 or R 16 is substituted or unsubstituted pheny
- the radicals R 17 are independently selected from the group consisting of methoxy, phenyloxy, unsubstituted -C 4 alkyl, preferably methyl, halogenated Ci-C 4 alkyl, preferably CF 3, CHF 2, CH 2 F, C 2 F 5 CN, halogen, preferably F, -C (O) O-C 1 -C 4 -alkyl, preferably -C (O) OMe, P (O) Ph 2 , and substituted or unsubstituted heteroaryl having 5 to 13 ring atoms, preferably carbazolyl in which case, when the compound of the general formula (I) is present exclusively in the light-emitting layer or in the light-emitting layer and in the hole layer, and the group X is NR 1 , at least one of the radicals R 1 to R 7 , R a or R b in the compounds of formula (I) contains at least one heteroatom.
- the indices r and q in the compounds of the formula (I) are O, d. H. all substitutable positions of the aryl groups carry hydrogen atoms. For all other radicals and indices, the meanings given above apply.
- the compounds of the formula (I) used according to the invention can be used in various layers of the organic light-emitting diode according to the invention, suitable and preferred layer sequences being mentioned above in the OLEDs according to the invention
- the present invention relates to organic light-emitting diodes in which the compounds of the formula (I) are used in the light-emitting layer E as a matrix, in which case, when the compound of the general formula (I) is used exclusively in the light-emitting Layer or in the light-emitting layer and in the hole conductor layer and the group X is NR 1 , at least at least one of the radicals R 1 to R 7 , R a or R b in the compounds of formula (I) contains at least one heteroatom.
- the present invention relates to an organic light-emitting diode according to the invention, in which the compounds of the formula (I) are used in the blocking layer for electrons as electron / exciton blocker and / or in the hole injection layer and / or in the hole conductor layer in the case where the compound of the general formula (I) is present in the light-emitting layer and in the hole conductor layer and the group X is NR 1 , at least one of R 1 to R 7 , R a or R b in FIG the compounds of the formula (I) contains at least one heteroatom. It is also possible that the compounds of the formula (I) are further present in the light-emitting layer E and / or one or more of the layers mentioned below.
- the present invention relates to an organic light-emitting diode according to the invention, in which the compounds of the formula (I) are used in the block layer for holes as hole / exciton blocker and / or in the electron injection layer and / or in the electron conductor layer. It is also possible that the compounds of the formula (I) are present in the light-emitting layer E and / or one or more of the abovementioned layers.
- the compounds of the formula (I) have different preferred radicals R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R a and R b and different groups X on.
- the radicals R 1 to R 7 , R a and R b and the group X of the compounds of the formula (I) are furthermore from the electronic properties (relative positions of the HOMOs and LUMOs) of the respective layers used in the OLED according to the invention.
- Layers of an OLED are known to the person skilled in the art. The following are the principles by way of example with respect to the properties of the block layer for electrons and the block layer for holes in relation to the light-emitting layer:
- the LUMO of the block layer for electrons is higher in energy than the LUMO of the materials used in the light-emitting layer (both of the emitter material and optionally used matrix materials).
- the greater the energy difference of the LUMOs of the block layer for electrons and the materials in the light-emitting layer the better the electron and / or exciton-blocking properties of the block layer for electrons.
- Suitable substitution patterns of the compounds of the formula (I) which are suitable as electron and / or exciton blocker materials are thus dependent inter alia on the electronic properties (in particular the position of the LUMO) of the materials used in the light-emitting layer.
- the HOMO of the block layer for electrons is higher in energy than the HOMOs of the materials present in the light-emitting layer (both of the emitter materials and of the optionally present matrix materials).
- Suitable substitution patterns of the compounds of the formula (I) which are suitable as hole and / or exciton blocker materials are thus dependent inter alia on the electronic properties (in particular the position of the HOMOs) of the materials present in the light-emitting layer.
- Preferred radicals R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R a and R b are the compounds of the formula (I) depending on their use in different layers of the inventive OLED mentioned below. It should be noted that other than the below-mentioned preferred substitutions of the compounds of formula (I) for use in the various layers - depending on the electronic properties of the other layers of the OLED, in particular depending on the electronic properties of the light. emitting layer - may be suitable in principle.
- a preferred embodiment of the present invention relates to an organic light-emitting diode in which the compounds of the formula (I) are used in a block layer for electrons, in a hole injection layer and / or in a hole conductor layer and / or in the light-emitting layer E as matrix materials ,
- Preferred compounds of the formula (I) which can be used in at least one of the abovementioned layers have at least one radical R 1 , R 2 , R 3 , R 4 , R 5 , R 6 or R 7 which is substituted or unsubstituted .es Ci-C 2 -alkyl, heteroaryl having 5 to 30 ring atoms, with at least one substituent having a donor action substituted C 6 -C 30 -aryl or heteroaryl having 5 to 30 ring atoms substituted C 6 -C 30 -aryl or is a substituent with donor effect or, in the case of R 2 , R 3 , R 4 , R 5 , R 6 or R 7 , hydrogen, in which case, when the compound of general formula (I) exclusively in the light-emitting Layer or in the light-emitting layer and in the hole conductor layer and the group X NR 1 , at least one of R 1 to R 7 , R a or R b in the compounds of formula (I
- Suitable substituents with donor are selected from the group consisting of substituted or unsubstituted 6 -alkyl, preferably methyl, substituted or unsubstituted C 6 -C 0 aryl, substituted or unsubstituted electron-rich heteroaryl having five to 30 ring atoms, preferably selected from the group consisting of carbazolyl, pyrrolyl, imidazolyl, pyrazolyl, triazolyl, oxazolyl, thiophenyl, preferably carbazolyl, pyrrolyl and thiophenyl, more preferably carbazolyl, C 1 -C 20 -alkoxy, preferably C 1 -C 6 -alkoxy, more preferably methoxy and ethoxy, C 6 -C 30 -aryloxy, preferably C 6 -C 0 aryloxy, most preferably phenyloxy, C 20 alkylthio, preferably C- ⁇ -
- substituents with donor action are selected from the group consisting of diphenylamino, carbazolyl, methoxy, phenoxy, with methoxy and carbazolyl being especially particularly preferred.
- the at least one radical which is used in the abovementioned layers is particularly preferably a C 6 -aryl radical of the formula (d) which is substituted by at least one donor-active substituent and / or at least one heteroaryl radical having from 5 to 30 ring atoms )
- R 18 each independently represents substituted or unsubstituted C 6 alkyl, preferably methyl, substituted or unsubstituted C 6 -Cio-aryl, Ci-C2o-alkoxy, CrC preferably 6 alkoxy, particularly preferably methoxy and ethoxy, C 6 -C 30 -
- Aryloxy preferably C 6 -Cio-aryloxy, most preferably phenyloxy, C1-C20 alkylthio, preferably Ci-Ce-alkylthio, more preferably -SCH 3, C 6 -C 30 -arylthio, preferably C 6 -C 0 arylthio, particularly preferably -SPh, SiR 14 R 15 R 16 , wherein R 14 , R 15 and R 16 have the meanings given above and preferably denote donor-substituted phenyl groups, amino (-NR 14 R 15 ), preferably
- R 14 , R 15 and R 16 have the meanings given above, and preferably denotes donor-substituted phenyl groups, or R 18 denotes substituted or unsubstituted electron-rich heteroaryl having five to 30 ring atoms, preferably selected from the group consisting of carbazolyl, pyrrolyl, imidazolyl, pyrazolyl, triazolyl, oxazolyl, thiophenyl, more preferably carbazolyl, pyrrolyl and thiophenyl Preferred groups R 18 are selected from the group consisting of methoxy, ethoxy, phenoxy, with methoxy being most particularly preferred, carbazolyl, pyrrolyl, imidazolyl, pyrazolyl, triazoly
- At least one radical R 1 , R 2 , R 3 , R 4 , R 5 , R 6 or R 7 selected from the group consisting of
- at least the radical R 1 is a C 6 -aryl radical of the formula (d) which is substituted by at least one substituent having a donor effect and / or at least one heteroaryl radical having from 5 to 30 ring atoms;
- R 2 , R 3 , R 4 , R 5 , R 6 and R 7 are preferably phenyl, methyl or phenyl substituted with methoxy or phenyloxy.
- Another object of the present invention relates to an organic light-emitting diode according to the invention, wherein at least one compound of formula (I) is present in at least one of the layers selected from light-emitting layer E, block layer for holes, electron injection layer and electron conductor layer.
- Preferred compounds of the formula (I) used in the abovementioned layers have at least one radical R 1 , R 2 , R 3 , R 4 , R 5 , R 6 or R 7 which has at least one substituent with acceptor action (electron-withdrawing radical). substituted d- to C2o-alkyl, at least one substituent with acceptor-substituted C 3 -C 3 o-aryl, substituted with at least one heteroaryl group having 5 to 30 ring atoms C 6 -C 3 o-aryl, or a substituent having Acceptor effect is.
- Suitable substituents with acceptor action are selected from the group consisting of electron-poor heteroaryls having 5 to 30
- Halogen substituted CrC 2 o-alkyl, pseudohalogen radicals, amido (-C O (NR 14 ),
- NR 14 R 15 hydrazone radicals, oxime radicals, nitroso groups, diazo groups, sulfoximines, SiR 14 R 15 R 16 ,, borane radicals, stannane radicals, acceptor-substituted vinyl groups,
- R 14 , R 15 and R 16 are substituted or unsubstituted C 1 -C 20 -alkyl, preferably substituted or unsubstituted C 1 -C 6 -alkyl, or substituted or unsubstituted C 6 -C 30 -aryl, preferably substituted or unsubstituted C 6 - Ci 0 -
- Preferred substituents with acceptor action are selected from the group consisting of halogen, preferably F, halogen-substituted alkyl, preferably CF 3 ,
- the at least one radical which is used in the abovementioned layers is particularly preferably a substituted C 6 -aryl radical of the formula (e)
- p is 1, 2, 3, 4 or 5, preferably 1, 2 or 3, more preferably 1 or 2, and
- R 14 , R 15 and R 16 are substituted or unsubstituted C 1 -C 20 -alkyl, preferably substituted or unsubstitutedCrC 6 - -C 6 alkyl, or substituted or unsubstituted C 30 aryl, preferably substituted or unsubstituted C 6 -C 0 aryl; prefers
- the compounds of the formula (I) used in the abovementioned layers particularly preferably have at least one radical R 1 , R 2 , R 3 , R 4 , R 5 , R 6 or R 7 selected from the group consisting of:
- a typical carbazole synthesis is the Borsche-Drechsel cyclization (Borsche, Ann., 359, 49 (1908); Drechsel, J. prakt. Chem., [2], 38, 69, 1888).
- tetrahydrocarbocoles can be prepared according to methods known to those skilled in the art, e.g. B. by condensation of optionally suitably substituted phenylhydrazine with optionally suitably substituted cyclohexanone, wherein the corresponding imine is obtained.
- an acid-catalyzed rearrangement and ring closure reaction takes place to give the corresponding tetrahydrocarbozole.
- X is NR 1 , SO, SO 2 , S, O or PR 1 or NH or PH or PPh.
- radicals R 1 in the case that X is NH or PH, before or after the introduction of the radicals R a , R b , SiR 2 R 3 R 4 and SiR 5 R 6 R 7 , as far as the radicals R a and R b in the compounds of formula (I), or for the introduction of the radicals R a , R b , SiR 2 R 3 R 4 and SiR 5 R 6 R 7 suitable precursor compounds are introduced.
- X NR 1 and PR 1 :
- Variant b) is particularly preferred when R 1 is substituted or unsubstitu- jewes Ci-C 6 -C 3 o-aryl or Ci-C 20 alkyl or C 20 alkyl substituted C 6 -C 3 o-aryl.
- Variant c) ic) Preparation of a precursor compound suitable for introducing the radicals R a , R b , SiR 2 R 3 R 4 and SiR 5 R 6 R 7 , iic) introducing the radicals R a , R b , if present, and the radicals SiR 2 R 3 R 4 and
- Suitable precursor compounds for introducing the radicals R a , R b , SiR 2 R 3 R 4 and SiR 5 R 6 R 7 are in particular the corresponding halogenated, preferably brominated compounds of the general formula (III):
- Hal is halogen, preferably bromine or iodine, particularly preferably bromine
- n is 0, 1 or 2 (the sum of both n in formula (III) being at least 1), preferably 1 in each case and X in step ia) and ic)
- X is NH or PH
- X in step ib) is NR 1 or PR 1
- X in step id) is NR 1 , SO, SO 2 , S, O or PR 1 .
- halogenation can be carried out according to methods known to the person skilled in the art.
- bromination with Br 2 is carried out in glacial acetic acid or chloroform at low temperatures, for example 0 0 C.
- the introduction of the radical is preferably carried out by reacting the skeleton of the formula (II) or the compound of the formula (III) with an alkyl halide or aryl halide.
- the introduction of the radical R 1 is generally carried out in the presence of a base.
- Suitable bases are known to the person skilled in the art and are preferably selected from the group consisting of alkali metal and alkaline earth metal hydroxides such as NaOH, KOH, Ca (OH) 2 ,
- Alkali hydrides such as NaH, KH, alkali metal amides such as NaNH 2 , alkali metal or alkaline earth metal carbonates such as K 2 C ⁇ 3 ⁇ der Cs 2 C ⁇ 3 "and alkali metal alkoxides such as NaOMe, NaOEt.
- alkali metal amides such as NaNH 2
- alkali metal or alkaline earth metal carbonates such as K 2 C ⁇ 3 ⁇ der Cs 2 C ⁇ 3 "and alkali metal alkoxides such as NaOMe, NaOEt.
- mixtures of the abovementioned bases are suitable. Particularly preferred are NaOH, KOH, K 2 CO 3 or NaH.
- N-alkylation for example disclosed in M. Tosa et al., Heterocyclic Communications, Vol. 7, No. 3, 2001, pp. 277-282
- N-arylation or N-heteroarylation for example (N -Arylation) disclosed in H. Gilman and DA Shirley, J. Am. Chem. Soc. 66 (1944) 888; D. Li et al., Dyes and Pigments 49 (2001) 181-186
- Suitable solvents are e.g. polar aprotic solvents such as dimethyl sulfoxide, dimethylformamide or alcohols.
- reaction may further be carried out in a non-polar aprotic solvent, e.g. As toluene, be carried out when a phase transfer catalyst, for. Tetra-n-butylammonium hydrogensulfate (as disclosed, for example, in I. Gozlan et al., J. Heterocycl Chem 21 (1984) 613-614).
- a phase transfer catalyst for. Tetra-n-butylammonium hydrogensulfate (as disclosed, for example, in I. Gozlan et al., J. Heterocycl Chem 21 (1984) 613-614).
- the N- (hetero) arylation can be carried out, for example, by copper-catalyzed coupling of the compound of the formula (II) or (III) with a (hetero) aryl halide, for example an aryliodine (Ullmann reaction).
- the introduction of the radical R 1 preferably takes place by reaction of the compound of the formula (II) or (III) with an alkyl, aryl or heteroaryl fluoride in the presence of NaH in DMF (nucleophilic substitution) or by reaction with an alkyl, aryl or heteroaryl bromide or iodide under Cu / base (Ullmann, supra) or Pd catalysis.
- the molar ratio of the compound of the formula (II) or (III) to the alkyl halide or (hetero) aryl halide of the formula R 1 -Hal is generally from 1: 1 to 1:15, preferably from 1: 1 to 1: 6 preferably 1: 4.
- the N-alkylation or N- (hetero) arylation is generally carried out at a temperature from 0 to 220 0 C., preferably 20 to 200 0 C.
- the reaction time is in the Generally 0.5 to 48 hours, preferably 1 to 24 hours.
- the N-alkylation or N-arylation is carried out at atmospheric pressure.
- the crude product obtained is worked up in accordance with methods known to the person skilled in the art.
- the preparation of the desired silylated compounds of the formula (I) is carried out starting from the halogenated precursor compounds of the formula (III) generally by halogen / metal exchange and subsequent silylation by methods known to the person skilled in the art.
- the preparation is carried out in a first step by halogen / metal exchange by reacting the halogenated compounds of the formula (III) with alkyllithium compounds or Mg at temperatures of generally -80 0 C to + 80 0 C, preferably at -78 ° C to 0 0 C (for Alkyllithiumverbinguen) or 0 0 C to 80 0 C (for Mg), particularly preferably from 0 0 C to 4O 0 C (for Mg).
- alkyllithium compounds in particular n-BuLi or tert-BuLi.
- the reaction generally takes place in a solvent, preferably in THF (or ether, preferably diethyl ether)
- silylation to the desired compounds of the formula (I) takes place, preferably by reaction with SiR m Cl (4- m) or SiR m (OR ') (4-m), where m is 1, 2 or 3 and R' is C 1 to C 6 alkyl
- the silylation is generally carried out in a solvent Preferred solvents are THF or ether
- the silylation is carried out directly following the reaction in the first step, without working up or isolation of the product obtained after the first step.
- the halogen / metal exchange and the subsequent silylation are generally repeated until all n halogen radicals in Tsai et al., Adv. Mater., 2006, Vol. 18, No. 9, pages 1216 to 1220.
- the introduction of the protective group is carried out in accordance with methods known in the art.
- a deprotonation first takes place and then the introduction of a protective group.
- the deprotonation is usually carried out with bases, for. With NaH, nBuLi or tert-BuLi.
- the deprotection is likewise carried out according to methods known to the person skilled in the art. Suitable reagents for deprotection depend on the protective groups used.
- the compounds of the formula (I) according to the invention as matrix materials in the light-emitting layer and / or in at least one further layer of OLEDs according to the invention selected from disilylcarbazoles, disilyldibenzofurans, disilyldibenzothiophenes, disilyldibenzophospholes, disilyldibenzothiophene-oxides and disilyldibenzothiophene-S , S-dioxides can be obtained with high efficiency and lifetime OLEDs.
- the efficiency of the OLEDs according to the invention can be further improved by optimizing the other layers. For example, highly efficient cathodes such as Ca or Ba, optionally in combination with an intermediate layer of LiF, can be used.
- Shaped substrates and novel hole-transporting materials which cause a reduction in the operating voltage or an increase in the quantum efficiency can also be used in the OLEDs according to the invention. Furthermore, additional layers in the OLEDs be present to adjust the energy levels of the different layers and to facilitate electroluminescence.
- the OLEDs according to the invention can be used in all devices in which electroluminescence is useful. Suitable devices are preferably selected from stationary and mobile screens and lighting units. Stationary screens are e.g. Screens of computers, televisions, screens in printers, kitchen appliances and billboards, lights and signboards. Mobile screens are e.g. Screens in cell phones, laptops, digital cameras, vehicles, and destination displays on buses and trains.
- the compounds of formula (I) can be used in OLEDs with inverse structure.
- the compounds of the formula (I) used according to the invention in these inverse OLEDs are preferably used in turn as matrix materials in the light-emitting layer and / or in at least one further layer of the OLED.
- the construction of inverse OLEDs and the materials usually used therein are known to the person skilled in the art.
- Another object of the present invention relates to a light-emitting layer containing at least one compound of formula (I) according to the present invention and at least emitter material.
- Preferred compounds of the formula (I) and emitter materials are mentioned above.
- the proportion of the at least one compound of the formula (I) in the light-emitting layer of the OLED according to the invention is 10 to 99% by weight, preferably 50 to 99% by weight, particularly preferably 70 to 97% by weight.
- the proportion of the at least one emitter material in the light-emitting layer is generally from 1 to 90 wt .-%, preferably 1 to 50 wt .-%, particularly preferably 3 to 30 wt .-%, wherein the proportions of the at least a compound of the formula (I) and the at least one emitter material give 100% by weight.
- the light-emitting layer in addition to the at least one compound of general formula (I) and the at least one emitter material contains further substances, for. B. further diluent, further from the compounds of formula (I) different matrix material, wherein z. B. further dilution material has been mentioned above.
- Another object of the present invention is the use of compounds of general formula I according to the present application as a matrix material, hole / Excitonenblockermaterial and / or electron / Excitonenblockermaterial and / or hole injection material and / or electron injection material and / or hole conductor material and / or electron conductor material in an organic light emitting diode.
- the compounds of the formula (I) are preferably used as matrix materials and / or hole / exciton blocker materials in the OLED according to the invention.
- the present invention relates to a device selected from the group consisting of stationary screens such as screens of computers, televisions, screens in printers, kitchen appliances and billboards, lights, billboards and mobile screens such as screens in mobile phones, laptops, digital cameras, vehicles and target displays Buses and trains and lighting units comprising at least one organic light-emitting diode according to the invention or at least one light-emitting layer according to the invention.
- Example 1a Synthesis of 9- (3,5-bis (trifluoromethyl) phenyl) -3,6-dibromo-carbazole
- N-arylation of carbazole means N-H
- Carbazole (1 eq), phenyl halide A, potassium carbonate and copper powder are heated to 160-200 0 C and stirred overnight at this temperature. After cooling to room temperature, it is extracted with acetone or methylene chloride. The precipitate is filtered off and purified by column chromatography (silica gel, methylene chloride / cyclohexane).
- Carbazole (1 eq), phenyl iodide B, potassium carbonate and copper powder are heated to 130-160 ° C and stirred for 48 h at this temperature. After cooling to room temperature, it is extracted with methylene chloride. Recrystallization from EtOH gives the desired product.
- Example 4c Synthesis of 9- (3,4,5-trimethoxyphenyl) -3,6-bis (triphenylsilyl) carbazole
- Example 4d Synthesis of 3,6-bis - [(3,5-bis (trifluoromethyl) phenyl) -dimethyl-silyl] -9-phenyl-carbazole
- the residue is first digested in methanol, then in water and then again in methanol, filtered off and dried.
- the crude product is dissolved in methylene chloride, filtered through silica gel and crystallized by blanketing with cyclohexane. The crystals are filtered off and dried. 9.28 g (73%) of white powder are obtained.
- AIIg. Method 1.70 g (2.50 mmol) of 3,6-bis-t ⁇ phenylsilanyl-9H-carbazole are dissolved in 50 ml of absolute toluene under nitrogen atmosphere in a 100 ml 2-necked flask equipped with nitrogen inlet and septum. Subsequently, the solution is treated at room temperature over a period of 10 minutes with 1.92 ml (2.50 mmol) of sec-butyllithium (1.3M in cyclohexane) and stirred for a further 10 minutes.
- the ITO substrate used as the anode is first cleaned with commercial cleaning agents for LCD production (Deconex 20NS ® and neutralizing agent 25ORGAN- ACI D ®) and subsequently cleaned in an acetone / isopropanol mixture in an ultrasonic bath. To remove possible organic residues, the substrate is exposed to a continuous flow of ozone for another 25 minutes in an ozone furnace. This treatment also improves the hole injection properties of the ITO.
- the material 9-phenyl-3,6-bis (triphenylsilyl) carbazole (Example 4b) is vapor-deposited to a thickness of 10 nm as exciton and hole blocker.
- an electron transporter BCP (2,9-dimethyl-4,7-diphenyl-1, 10-phenanthroline) in a thickness of 50 nm, a 0.75 nm thick lithium fluoride layer and finally a 110 nm thick Al electrode evaporated.
- electroluminescence spectra are recorded at different currents or voltages. Furthermore, the current-voltage characteristic is measured in combination with the radiated light output. The light output can be converted by calibration with a luminance meter into photometric quantities.
- Table 1 below shows the electroluminescence data (current efficiency, quantum efficiency (QE) and voltage) for various OLEDs according to the invention.
- the structure of the respective OLED is given in the right column of Table 1 (Device Structure).
- the preparation of the respective OLED is carried out according to the above-mentioned typical working instructions.
- the values for the current efficiency, quantum efficiency (QE) and voltage given in Table 1 are relative values, in each case based on a reference OLE D, which is identical in structure to the respective OLED and differs therefrom from the respective OLED according to the invention, that 9-phenyl-3,6-bis (triphenylsilyl) carbazole (Example 4b) are used both as matrix and as exciton and hole blocker.
- the OLED used in each case as a reference OLED which has 9-phenyl-3,6-bis (triphenylsilyl) carbazole (Example 4b) both as matrix and as exciton and hole blocker, also serves as a reference for an OLED, the 9- (4-tert-butylphenyl) -3,6-bis (triphenylsilyl) carbazole, both as a matrix and as an exciton and hole blocker.
- the OLEDs listed below in Table 2 are prepared according to the typical procedure described in Example 1.
- the following table shows the electroluminescence data (current efficiency, quantum efficiency (QE) and voltage) for various OLEDs according to the invention.
- the OLEDs mentioned below instead of the material 9-phenyl-3,6-bis (triphenylsilyl) - OO 4 -carbazole (Example 4b) according to the typical procedure according to Example 1 in each case a different compound of formula II as a matrix material and / or blocker material used. Otherwise, the OLEDs mentioned below do not differ from those described above
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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US12/667,765 US8697255B2 (en) | 2007-07-05 | 2008-06-26 | Organic light-emitting diodes comprising at least one disilyl compound selected from disilylcarbazoles, disilyldibenzofurans, disilyldibenzothiophenes, disilyldibenzopholes, disilyldibenzothiophene S-oxides and disilyldibenzothiophene S,S-dioxides |
EP08774381.1A EP2173834B1 (de) | 2007-07-05 | 2008-06-26 | ORGANISCHE LEUCHTDIODEN ENTHALTEND MINDESTENS EINE DISILYLVERBINDUNG AUSGEWÄHLT AUS DISILYLCARBAZOLEN, DISILYLDIBENZOFURANEN und DISILYLDIBENZOTHIOPHENEN |
CN200880023458.1A CN101688114B (zh) | 2007-07-05 | 2008-06-26 | 包含至少一种选自二甲硅烷基咔唑、二甲硅烷基二苯并呋喃、二甲硅烷基二苯并噻吩、二甲硅烷基二苯并磷杂环戊二烯、二甲硅烷基二苯并噻吩s-氧化物和二甲硅烷基二苯并噻吩s,s-二氧化物的二甲硅烷基化合物的有机发光二极管 |
JP2010513923A JP5804703B2 (ja) | 2007-07-05 | 2008-06-26 | ジシリルカルバゾール、ジシリルジベンゾフラン、ジシリルジベンゾチオフェン、ジシリルジベンゾホスホール、ジシリルジベンゾチオフェンs−オキシドおよびジシリルジベンゾチオフェンs,s−ジオキシドから選択される少なくとも1つのジシリル化合物を含む有機発光ダイオード |
EP18156284.4A EP3345983B1 (de) | 2007-07-05 | 2008-06-26 | Verbindungen enthaltend mindestens eine disilylverbindung ausgewählt aus disilylcarbazolen, disilyldibenzofuranen, disilyldibenzothiophenen, disilyldibenzophospholen, disilyldibenzothiophen-s-oxiden und disilyldibenzothiophen-s, s-dioxiden |
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EP07111824.4 | 2007-07-05 | ||
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PCT/EP2008/058207 WO2009003919A1 (de) | 2007-07-05 | 2008-06-26 | Organische leuchtdioden enthaltend mindestens eine disilylverbindung ausgewählt aus disilylcarbazolen, disilyldibenzofuranen, disilyldibenzothiophenen, disilyldibenzophospholen, disilyldibenzothiophen-s-oxiden und disilyldibenzothiophen-s,s-dioxiden |
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EP (2) | EP3345983B1 (de) |
JP (1) | JP5804703B2 (de) |
KR (1) | KR101558623B1 (de) |
CN (1) | CN101688114B (de) |
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EP3345983A1 (de) | 2018-07-11 |
US8697255B2 (en) | 2014-04-15 |
EP3345983B1 (de) | 2020-08-26 |
US20110031477A1 (en) | 2011-02-10 |
CN101688114B (zh) | 2014-07-16 |
EP2173834B1 (de) | 2018-02-14 |
JP2010532557A (ja) | 2010-10-07 |
EP2173834A1 (de) | 2010-04-14 |
KR101558623B1 (ko) | 2015-10-07 |
CN101688114A (zh) | 2010-03-31 |
KR20100039393A (ko) | 2010-04-15 |
JP5804703B2 (ja) | 2015-11-04 |
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