EP2240425A1 - Neue materialien für organische elektrolumineszenzvorrichtungen - Google Patents
Neue materialien für organische elektrolumineszenzvorrichtungenInfo
- Publication number
- EP2240425A1 EP2240425A1 EP09709699A EP09709699A EP2240425A1 EP 2240425 A1 EP2240425 A1 EP 2240425A1 EP 09709699 A EP09709699 A EP 09709699A EP 09709699 A EP09709699 A EP 09709699A EP 2240425 A1 EP2240425 A1 EP 2240425A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- aromatic
- substituted
- group
- formula
- organic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 34
- 150000001875 compounds Chemical class 0.000 claims abstract description 72
- 125000005577 anthracene group Chemical group 0.000 claims abstract description 8
- 125000003118 aryl group Chemical group 0.000 claims description 67
- 239000010410 layer Substances 0.000 claims description 56
- -1 aromatic radicals Chemical class 0.000 claims description 50
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims description 32
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims description 22
- 125000004432 carbon atom Chemical group C* 0.000 claims description 18
- 239000002019 doping agent Substances 0.000 claims description 14
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- 229910052731 fluorine Inorganic materials 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 125000001424 substituent group Chemical group 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 150000003254 radicals Chemical class 0.000 claims description 11
- DXBHBZVCASKNBY-UHFFFAOYSA-N 1,2-Benz(a)anthracene Chemical compound C1=CC=C2C3=CC4=CC=CC=C4C=C3C=CC2=C1 DXBHBZVCASKNBY-UHFFFAOYSA-N 0.000 claims description 10
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 229910052794 bromium Inorganic materials 0.000 claims description 9
- 239000000460 chlorine Substances 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 9
- 125000001072 heteroaryl group Chemical group 0.000 claims description 9
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 150000001412 amines Chemical class 0.000 claims description 7
- 150000001454 anthracenes Chemical class 0.000 claims description 7
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 claims description 7
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims description 6
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- ZADPBFCGQRWHPN-UHFFFAOYSA-N boronic acid Chemical compound OBO ZADPBFCGQRWHPN-UHFFFAOYSA-N 0.000 claims description 6
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 claims description 6
- 150000004985 diamines Chemical class 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 claims description 6
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 claims description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 5
- XBDYBAVJXHJMNQ-UHFFFAOYSA-N Tetrahydroanthracene Natural products C1=CC=C2C=C(CCCC3)C3=CC2=C1 XBDYBAVJXHJMNQ-UHFFFAOYSA-N 0.000 claims description 5
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 claims description 5
- 239000004305 biphenyl Substances 0.000 claims description 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical group BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 5
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical group II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 5
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 claims description 5
- UWRZIZXBOLBCON-UHFFFAOYSA-N 2-phenylethenamine Chemical class NC=CC1=CC=CC=C1 UWRZIZXBOLBCON-UHFFFAOYSA-N 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 150000004982 aromatic amines Chemical class 0.000 claims description 4
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 4
- 229910052740 iodine Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 125000002950 monocyclic group Chemical group 0.000 claims description 4
- 150000002987 phenanthrenes Chemical class 0.000 claims description 4
- 125000005309 thioalkoxy group Chemical group 0.000 claims description 4
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 3
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 3
- 229910052805 deuterium Inorganic materials 0.000 claims description 3
- 239000012044 organic layer Substances 0.000 claims description 3
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 claims description 2
- MNCMBBIFTVWHIP-UHFFFAOYSA-N 1-anthracen-9-yl-2,2,2-trifluoroethanone Chemical group C1=CC=C2C(C(=O)C(F)(F)F)=C(C=CC=C3)C3=CC2=C1 MNCMBBIFTVWHIP-UHFFFAOYSA-N 0.000 claims description 2
- UYWWLYCGNNCLKE-UHFFFAOYSA-N 2-pyridin-4-yl-1h-benzimidazole Chemical compound N=1C2=CC=CC=C2NC=1C1=CC=NC=C1 UYWWLYCGNNCLKE-UHFFFAOYSA-N 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 125000004104 aryloxy group Chemical group 0.000 claims description 2
- 125000002676 chrysenyl group Chemical group C1(=CC=CC=2C3=CC=C4C=CC=CC4=C3C=CC12)* 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 230000005669 field effect Effects 0.000 claims description 2
- 125000001207 fluorophenyl group Chemical group 0.000 claims description 2
- 125000005553 heteroaryloxy group Chemical group 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 125000004437 phosphorous atom Chemical group 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 108091008695 photoreceptors Proteins 0.000 claims description 2
- 125000003367 polycyclic group Chemical group 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 125000001792 phenanthrenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C=CC12)* 0.000 abstract description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 30
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000000203 mixture Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 12
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 10
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000009835 boiling Methods 0.000 description 7
- UEWHMHUEUVHQQH-UHFFFAOYSA-N 6-bromophenanthrene-9-carboxylic acid Chemical compound BrC1=CC=C2C(C(=O)O)=CC3=CC=CC=C3C2=C1 UEWHMHUEUVHQQH-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 6
- 230000009477 glass transition Effects 0.000 description 6
- 125000005842 heteroatom Chemical group 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 5
- 125000000623 heterocyclic group Chemical group 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 125000005504 styryl group Chemical group 0.000 description 5
- 238000000859 sublimation Methods 0.000 description 5
- 230000008022 sublimation Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- BNGNNFQSUWVWCW-UHFFFAOYSA-N 3-bromophenanthrene Chemical class C1=CC=C2C3=CC(Br)=CC=C3C=CC2=C1 BNGNNFQSUWVWCW-UHFFFAOYSA-N 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 238000006069 Suzuki reaction reaction Methods 0.000 description 4
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 4
- 238000001953 recrystallisation Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- FNQJDLTXOVEEFB-UHFFFAOYSA-N 1,2,3-benzothiadiazole Chemical compound C1=CC=C2SN=NC2=C1 FNQJDLTXOVEEFB-UHFFFAOYSA-N 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- 239000005964 Acibenzolar-S-methyl Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 3
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 3
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000001642 boronic acid derivatives Chemical class 0.000 description 3
- 125000004986 diarylamino group Chemical group 0.000 description 3
- 125000003914 fluoranthenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC=C4C1=C23)* 0.000 description 3
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical compound C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- HHODURONDUJKNR-UKTHLTGXSA-N (e)-2-(4-bromophenyl)-3-(2-nitrophenyl)prop-2-enoic acid Chemical compound C=1C=C(Br)C=CC=1/C(C(=O)O)=C\C1=CC=CC=C1[N+]([O-])=O HHODURONDUJKNR-UKTHLTGXSA-N 0.000 description 2
- MOTNJMXVDYOMSI-UKTHLTGXSA-N (e)-3-(2-aminophenyl)-2-(4-bromophenyl)prop-2-enoic acid Chemical compound NC1=CC=CC=C1\C=C(\C(O)=O)C1=CC=C(Br)C=C1 MOTNJMXVDYOMSI-UKTHLTGXSA-N 0.000 description 2
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 2
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 2
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 2
- TZMSYXZUNZXBOL-UHFFFAOYSA-N 10H-phenoxazine Chemical compound C1=CC=C2NC3=CC=CC=C3OC2=C1 TZMSYXZUNZXBOL-UHFFFAOYSA-N 0.000 description 2
- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- OULPKDZSDWWWTD-UHFFFAOYSA-N 2-[4-(10-phenanthren-3-ylanthracen-9-yl)phenyl]-1-phenylbenzimidazole Chemical compound C1=CC=CC=C1N1C2=CC=CC=C2N=C1C1=CC=C(C=2C3=CC=CC=C3C(C=3C=C4C5=CC=CC=C5C=CC4=CC=3)=C3C=CC=CC3=2)C=C1 OULPKDZSDWWWTD-UHFFFAOYSA-N 0.000 description 2
- CMWKITSNTDAEDT-UHFFFAOYSA-N 2-nitrobenzaldehyde Chemical compound [O-][N+](=O)C1=CC=CC=C1C=O CMWKITSNTDAEDT-UHFFFAOYSA-N 0.000 description 2
- SCNBZWFFVGFRTK-UHFFFAOYSA-N 3-anthracen-9-ylphenanthrene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C(C=3C=C4C5=CC=CC=C5C=CC4=CC=3)=C21 SCNBZWFFVGFRTK-UHFFFAOYSA-N 0.000 description 2
- HUVYLKJFFITFTN-UHFFFAOYSA-N 6-(10-naphthalen-2-ylanthracen-9-yl)phenanthrene-9-carboxylic acid Chemical compound C12=CC=CC=C2C(C=2C=C3C4=CC=CC=C4C=C(C3=CC=2)C(=O)O)=C(C=CC=C2)C2=C1C1=CC=C(C=CC=C2)C2=C1 HUVYLKJFFITFTN-UHFFFAOYSA-N 0.000 description 2
- SBMOYCBVWFNAPL-UHFFFAOYSA-N 6-anthracen-9-ylphenanthrene-9-carboxylic acid Chemical compound C1=CC=C2C(C=3C=C4C5=CC=CC=C5C=C(C4=CC=3)C(=O)O)=C(C=CC=C3)C3=CC2=C1 SBMOYCBVWFNAPL-UHFFFAOYSA-N 0.000 description 2
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 2
- ZIRVQSRSPDUEOJ-UHFFFAOYSA-N 9-bromoanthracene Chemical class C1=CC=C2C(Br)=C(C=CC=C3)C3=CC2=C1 ZIRVQSRSPDUEOJ-UHFFFAOYSA-N 0.000 description 2
- RXQPIOQJJMGXOE-UHFFFAOYSA-N 9-naphthalen-2-yl-10-phenanthren-3-ylanthracene Chemical compound C12=CC=CC=C2C(C2=CC3=CC=CC=C3C=C2)=C(C=CC=C2)C2=C1C1=CC=C(C=CC=2C3=CC=CC=2)C3=C1 RXQPIOQJJMGXOE-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 2
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 2
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 2
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- JGDFBJMWFLXCLJ-UHFFFAOYSA-N copper chromite Chemical compound [Cu]=O.[Cu]=O.O=[Cr]O[Cr]=O JGDFBJMWFLXCLJ-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- TXCDCPKCNAJMEE-UHFFFAOYSA-N dibenzofuran Chemical compound C1=CC=C2C3=CC=CC=C3OC2=C1 TXCDCPKCNAJMEE-UHFFFAOYSA-N 0.000 description 2
- IYYZUPMFVPLQIF-UHFFFAOYSA-N dibenzothiophene Chemical compound C1=CC=C2C3=CC=CC=C3SC2=C1 IYYZUPMFVPLQIF-UHFFFAOYSA-N 0.000 description 2
- 230000005525 hole transport Effects 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- RDOWQLZANAYVLL-UHFFFAOYSA-N phenanthridine Chemical compound C1=CC=C2C3=CC=CC=C3C=NC2=C1 RDOWQLZANAYVLL-UHFFFAOYSA-N 0.000 description 2
- 229950000688 phenothiazine Drugs 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- XSCHRSMBECNVNS-UHFFFAOYSA-N quinoxaline Chemical compound N1=CC=NC2=CC=CC=C21 XSCHRSMBECNVNS-UHFFFAOYSA-N 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000021286 stilbenes Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
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- 125000004365 octenyl group Chemical group C(=CCCCCCC)* 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- SLIUAWYAILUBJU-UHFFFAOYSA-N pentacene Chemical compound C1=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C21 SLIUAWYAILUBJU-UHFFFAOYSA-N 0.000 description 1
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
- 125000005981 pentynyl group Chemical group 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- LHEOFIBQZSRTNC-UHFFFAOYSA-N phenanthrene-3-carbaldehyde Chemical compound C1=CC=C2C3=CC(C=O)=CC=C3C=CC2=C1 LHEOFIBQZSRTNC-UHFFFAOYSA-N 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- CPNGPNLZQNNVQM-UHFFFAOYSA-N pteridine Chemical compound N1=CN=CC2=NC=CN=C21 CPNGPNLZQNNVQM-UHFFFAOYSA-N 0.000 description 1
- 125000005581 pyrene group Chemical group 0.000 description 1
- BUAWIRPPAOOHKD-UHFFFAOYSA-N pyrene-1,2-diamine Chemical class C1=CC=C2C=CC3=C(N)C(N)=CC4=CC=C1C2=C43 BUAWIRPPAOOHKD-UHFFFAOYSA-N 0.000 description 1
- 150000003220 pyrenes Chemical class 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- GDISDVBCNPLSDU-UHFFFAOYSA-N pyrido[2,3-g]quinoline Chemical compound C1=CC=NC2=CC3=CC=CN=C3C=C21 GDISDVBCNPLSDU-UHFFFAOYSA-N 0.000 description 1
- JWVCLYRUEFBMGU-UHFFFAOYSA-N quinazoline Chemical compound N1=CN=CC2=CC=CC=C21 JWVCLYRUEFBMGU-UHFFFAOYSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 125000006413 ring segment Chemical group 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- GOBIABRISFZMIT-UHFFFAOYSA-M sodium;2-(4-bromophenyl)acetate Chemical compound [Na+].[O-]C(=O)CC1=CC=C(Br)C=C1 GOBIABRISFZMIT-UHFFFAOYSA-M 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 150000001629 stilbenes Chemical class 0.000 description 1
- 238000005092 sublimation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 125000006836 terphenylene group Chemical group 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- CNALVHVMBXLLIY-IUCAKERBSA-N tert-butyl n-[(3s,5s)-5-methylpiperidin-3-yl]carbamate Chemical compound C[C@@H]1CNC[C@@H](NC(=O)OC(C)(C)C)C1 CNALVHVMBXLLIY-IUCAKERBSA-N 0.000 description 1
- IOGXOCVLYRDXLW-UHFFFAOYSA-N tert-butyl nitrite Chemical compound CC(C)(C)ON=O IOGXOCVLYRDXLW-UHFFFAOYSA-N 0.000 description 1
- 239000012414 tert-butyl nitrite Substances 0.000 description 1
- 150000003536 tetrazoles Chemical class 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 238000007832 transition metal-catalyzed coupling reaction Methods 0.000 description 1
- 125000005259 triarylamine group Chemical group 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- YGPLLMPPZRUGTJ-UHFFFAOYSA-N truxene Chemical compound C1C2=CC=CC=C2C(C2=C3C4=CC=CC=C4C2)=C1C1=C3CC2=CC=CC=C21 YGPLLMPPZRUGTJ-UHFFFAOYSA-N 0.000 description 1
- 238000002061 vacuum sublimation Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Classifications
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- C07C13/54—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with three condensed rings
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- C07C13/567—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with three condensed rings at least one ring not being six-membered, the other rings being at the most six-membered with a fluorene or hydrogenated fluorene ring system
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- C07C211/61—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton with at least one of the condensed ring systems formed by three or more rings
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- C07D251/14—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom
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- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
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- Y10S428/917—Electroluminescent
Definitions
- the present invention relates to organic semiconductors and their use in organic electronic devices.
- Organic semiconductors are being developed for a variety of electronic applications.
- OLEDs organic electroluminescent devices
- the structure of organic electroluminescent devices (OLEDs) in which these organic semiconductors are used as functional materials is described, for example, in US Pat. No. 4,539,507, US Pat. No. 5,151,629, EP 0676461 and WO 98/27136.
- further improvements are needed before these devices can be used for high quality and durable displays.
- the lifetime and the efficiency of deep blue-emitting organic electroluminescent devices are currently still a problem in which there is still room for improvement.
- the compounds have a high thermal stability and a high glass transition temperature and can sublime undecomposed.
- a high glass transition temperature is essential for achieving high lifetimes.
- condensed aromatics in particular anthracene derivatives
- host materials for blue-emitting electroluminescent devices, eg. B. 9,10-bis (2-naphthyl) anthracene (US 5935721).
- WO 03/095445 and CN 1362464 disclose 9,10-bis (1-naphthyl) anthracene derivatives for use in OLEDs.
- Further anthracene derivatives are disclosed in WO 01/076323, in WO 01/021729, in WO 04/013073, in WO 04/018588, in WO 03/087023 or in WO 04/018587.
- Host materials based on aryl-substituted pyrenes and chrysenes are disclosed in WO 04/016575. It is necessary for high quality applications to have improved host materials available.
- anthracene derivatives which are substituted in the 9-position with a 3-phenanthrenyl group, wherein both the anthracene and the phenanthrene can be further substituted, here show significant improvements and are very suitable for use in organic electroluminescent devices.
- these compounds it is possible to increase the efficiency and, above all, the lifetime of the organic electronic device in comparison with materials according to the prior art. This is especially true for deep blue fluorescent devices.
- these compounds have a high thermal stability. In general, these materials are very well suited for use in organic electronic devices since they have a high glass transition temperature. These materials and their use in organic electronic devices are therefore the subject of the present invention.
- organic electroluminescent devices which contain phenanthrene derivatives, wherein the phenanthrene in addition to other substituents also by aromatic
- JP 2001/332384 does not teach that just one anthracene, to which in the 9-position one 3-phenanthrenyl group, particularly good results achieved in organic electroluminescent devices.
- WO 07/123256 generally claims fluoranthene-9-anthracene compounds for use in organic electroluminescent devices.
- the anthracene in the 10-position may also be substituted by further aromatic groups.
- two structures are also listed which contain a 3-phenathrenyl group on the anthracene in the 10-position.
- the inventive effect of these compounds is attributed to the combination of the fluoranthene moiety with the 9-anthracene moiety.
- the presence of phenanthrenyl is not attributed importance.
- the invention provides compounds of the formula (1)
- Ar is H 1 D or an aromatic or heteroaromatic ring system having from 5 to 60 aromatic ring atoms which may be substituted with one or more non-aromatic radicals R 1 ;
- R 1 is the same or different at each occurrence H, D, F, Cl 1 Br, I 1
- R2 is the same or different at each occurrence of R1 or two or more adjacent substituents R2 together form a mono- or polycyclic, aliphatic or aromatic ring system;
- the compounds according to formula (1) has a glass transition temperature T 9 of greater than 70 0 C, more preferably greater than 100 0 C, most preferably greater than 120 0 C.
- Ar is not a fluoranthene group or does not contain a fluoranthene group which is bonded directly to the anthracene.
- An aryl group in the sense of this invention contains 6 to 60 C atoms;
- a heteroaryl group contains 2 to 60 C atoms and at least 1 heteroatom, with the proviso that the sum of C atoms and heteroatoms gives at least 5.
- the heteroatoms are preferably selected from N, O and / or S.
- aryl group or heteroaryl group either a simple aromatic cycle, ie benzene, or a simple heteroaromatic cycle, for example pyridine, pyrimidine, thiophene, etc., or a fused aryl or heteroaryl group, for example naphthalene, anthracene, pyrene, quinoline, isoquinoline, benzimidazole , Phenanthrene, etc., understood.
- An aromatic ring system in the sense of this invention contains 6 to 60 carbon atoms in the ring system.
- a heteroaromatic ring system in the sense of this invention contains 2 to 60 C atoms and at least one heteroatom in the ring system, with the proviso that the sum of C atoms and heteroatoms gives at least 5.
- the heteroatoms are preferably selected from N, O and / or S.
- An aromatic or heteroaromatic ring system in the sense of this invention is to be understood as meaning a system which does not necessarily contain only aryl or heteroaryl groups but in which also several aryl or heteroaromatic ring systems Heteroaryl groups by a short, non-aromatic unit (preferably less than 10% of the atoms other than H), such as.
- N or O atom may be interrupted.
- systems such as 9,9'-spirobifluorene, 9,9-diarylfluorene, cis- and trans-indenofluorene, benzindene fluorene, dibenzoindenofluorene, triarylamine, diaryl ethers, stilbene, benzophenone, etc. are also to be understood as aromatic ring systems in the context of this invention.
- aromatic or heteroaromatic ring system is understood as meaning systems in which a plurality of aryl or heteroaryl groups are linked together by single bonds, for example biphenyl, terphenyl or bipyridine.
- a C 1 to C 40 alkyl group in which individual H atoms or CH 2 groups can also be substituted by the abovementioned groups, particularly preferably the radicals methyl, ethyl, n-propyl, i-propyl , n-butyl, i-butyl, s-butyl, t-butyl, 2-methylbutyl, n-pentyl, s-pentyl, cyclopentyl, n-hexyl, cyclohexyl, n-heptyl, cycloheptyl, n-octyl, cyclooctyl, 2 Ethylhexyl, trifluoromethyl, pentafluoroethyl, 2,2,2-trifluoroethyl, ethenyl, propenyl, butenyl, pentenyl, cyclopentenyl, hexenyl
- a C 1 to C 40 alkoxy group is more preferably understood as meaning methoxy, trifluoromethoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, s-butoxy, t-butoxy or 2-methylbutoxy.
- aromatic or heteroaromatic ring system having 5-60 aromatic ring atoms, which may each be substituted in each case with the abovementioned radicals R and which may be linked via any desired positions on the aromatic or heteroaromatic compounds, are understood in particular groups which are derived from Benzene, naphthalene, anthracene, phenanthrene, pyrene, chrysene, perylene, fluoranthene, naphthacene, pentacene, benzanthracene, benzpyrene,
- Phenanthroline 1, 2,3-triazole, 1, 2,4-triazole, benzotriazole, 1, 2,3-oxadiazole, 1,2,4-oxadiazole, 1, 2,5-oxadiazole, 1,3,4- Oxadiazole, 1, 2,3-thiadiazole, 1,2,4-thiadiazole, 1, 2,5-thiadiazole, 1, 3,4-thiadiazole, 1, 3,5-triazine, 1, 2,4-triazine, 1, 2,3-triazine. Tetrazole, 1,2,4,5-tetrazine, 1, 2,3,4-tetrazine, 1, 2,3,5-tetrazine, purine, pteridine, indolizine and benzothiadiazole.
- the anthracene unit of the formula (1) at most one group C-R2 is replaced by N. Most preferably, no group C-R2 is replaced by N, that is, it is an anthracene and not a heterocycle.
- no group is in the phenanthrene unit Replaced C-R1 by N, that is, it is a phenanthrene and not a heterocycle.
- Preferred embodiments of the present invention are compounds according to formula (2) to formula (7),
- the group Ar in formula (5) preferably represents H or D.
- the group Ar preferably represents an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms which may be substituted with one or more non-aromatic radicals R1.
- the group Ar is particularly preferably composed of the aromatic or heteroaromatic groups benzene, naphthalene, anthracene, carbazole, phenanthrene, benzanthracene, chrysene, pyrene, phenanthroline, triazine and benzimidazole.
- Very particularly preferred groups Ar are selected from phenyl, ortho, meta- or para-biphenyl, 1- or 2-naphthyl, 2-, 3- or 9-phenanthrenyl, para-phenylene-1-naphthyl, para-phenylene-2 naphthyl, 2-fluorenyl or 2-spirobifluorenyl, each of which may be substituted by one or more nonaromatic radicals R1, or the group Ar is selected from the following formulas (8), (9), (10) or (11),
- R1 has the meaning given above and furthermore:
- Ar 2 is an aryl or heteroaryl group having from 5 to 16 aromatic
- Ring atoms preferably phenyl, 1-naphthyl, 2-naphthyl, 9-anthryl, chrysenyl, 1-pyrenyl, 2-pyrenyl, 2-phenanthrenyl, 3-phenanthrene, 9-phenanthrenyl, 2-benzimidazole or fluoro-phenyl, which are each denoted by one or more R1 may be substituted;
- q is 0, 1, 2 or 3, preferably 1 or 2, more preferably 1.
- the radicals R 2 in compounds of the formula (1) form an aromatic ring system.
- H atoms may be replaced by F, or an aromatic or heteroaromatic ring system having from 5 to 30 aromatic ring atoms, each of which may be substituted by one or more non-aromatic R1 groups, or a combination of these systems.
- Examples of preferred compounds according to the formula (1) or according to the formulas (2) to (7) are the structures (1) to (122) depicted below.
- the compounds of the formula (1) according to the invention can be prepared by synthesis steps generally known to the person skilled in the art.
- a starting compound z For example, the corresponding 3-bromophenanthrenes and 9-bromoanthracenes or 9,10-dibromoanthracenes or 7- or 12-bromobenz [a] anthracene or 7,12-dibromobenz [a] anthracene.
- the compounds substituted with appropriate leaving groups such as chlorine, iodine, triflate or tosylate can serve as starting compounds which are then optionally converted into the corresponding boronic acid derivatives. Suzuki coupling of the compounds may take place under standard conditions known to those skilled in the art of organic chemistry.
- 3-Bromo-substituted phenanthrenes can be prepared by a modified Pschorr phenanthrene synthesis, as shown in Scheme 1.
- this consists of a stereospecific Perkin condensation of ortho-nitrobenzaldehyde and para-bromophenylacetic acid (Scheme 1a).
- the nitro group of the nitrocinnamic acid derivative obtained in the first step is reduced to the amino group, for example by iron (II) (Scheme 1 b).
- anthracene component is shown in Scheme 2 using the example of 2-naphthylanthracene.
- 2-naphthyl group another aryl group may be selected and / or the aryl group may be substituted.
- the unsubstituted anthracene a substituted anthracene or a substituted or unsubstituted benzanthracene or tetracene.
- the aromatic group Ar here a 2-naphthyl group, is introduced as a boronic acid derivative in a Suzuki coupling. This may be done under standard conditions as known to those skilled in the art of organic synthesis.
- the 9-arylanthracene derivative thus obtained is functionalized in the 10-position, for example brominated, the bromination being carried out under standard conditions, as known to those skilled in the art, for example with elemental bromine in acetic acid or chloroform or NBS in THF.
- the bromoanthracene can be converted to the boronic acid, for example by lithiation and reaction with B (O 1 Pr) 3 .
- Another object of the present invention is a process for the preparation of compounds of formula (1) by coupling a 9-aryl-substituted anthracene, which in position 10 by a reactive leaving group, in particular chlorine, bromine, iodine, triflate, tosylate, boronic acid or boronic acid ester, or a corresponding benz [a] anthracene or tetracene with a phenanthrene derivative which is functionalized in the 3-position, in particular by chlorine, bromine, iodine, triflate, tosylate, boronic acid or boronic acid ester.
- a reactive leaving group in particular chlorine, bromine, iodine, triflate, tosylate, boronic acid or boronic acid ester
- both the phenanthrene and also the anthracene, benzanthracene or tetracene may be substituted by the abovementioned substituents R 1 or R 2.
- the one component contains bromine as a functional leaving group and the other component contains a boronic acid or a boronic ester as a functional leaving group.
- Suitable coupling reactions are, in particular, transition metal-catalyzed coupling reactions, in particular the Suzuki coupling under palladium catalysis.
- the compounds of the formula (1) are suitable for use in electronic devices, in particular in organic electroluminescent devices (OLEDs, PLEDs). Depending on the substitution, the compounds are used in different functions and layers.
- Another object of the invention is therefore the use of compounds according to formula (1) in electronic devices, in particular in organic electroluminescent devices.
- organic electronic devices containing at least one compound according to formula (1), in particular organic electroluminescent devices containing anode, cathode and at least one emitting layer, characterized in that at least one organic layer containing an emitting layer or another layer, at least one compound according to formula (1) contains.
- the organic electronic device can also have inorganic layers.
- the organic electroluminescent device may contain further layers. These are selected, for example, from one or more hole injection layers, hole transport layers, electron transport layers, electron injection layers and / or charge generation layers
- the organic electroluminescent device contains a plurality of emitting layers, wherein at least one organic layer contains at least one compound according to formula (1).
- these emission layers have a total of several emission maxima between 380 nm and 750 nm, so that a total of white emission results, ie in the emitting layers are different emitting Used compounds that can fluoresce or phosphoresce and emit the blue and yellow, orange or red light.
- the compound according to the formula (1) is preferably used in a blue-emitting layer.
- Particularly preferred are three-layer systems, ie systems with three emitting layers, wherein at least one of these layers contains at least one compound according to formula (1) and wherein the three layers blue, green and orange or red emission show (for the basic structure see, for. WO 05/011013).
- white emission emitters which have broadband emission and thereby show white emission.
- the compounds of the formula (1) or (2) to (7) are used as host material for fluorescent dopants, in particular for blue-fluorescent dopants.
- the group Ar is preferably selected from simple or condensed aryl groups, in particular phenyl, ortho, meta- or para-biphenyl, 1-naphthyl, 2-naphthyl, 2-, 3- or 9-phenanthrenyl or 4- or 5-Benz [a] anthracene, which may each be substituted by one or more radicals R1.
- a host material in a system of host and dopant is understood to mean the component which is present in the system in the higher proportion.
- the host is understood to be that component whose proportion is the highest in the mixture.
- the proportion of the host material according to formula (1) or (2) to (7) in the emitting layer is between 50.0 and 99.9 wt .-%, preferably between 80.0 and 99.5 wt .-%, particularly preferably between 90.0 and 99.0 wt. -%. Accordingly, the proportion of the dopant is between 0.01 and 50.0 wt .-%, preferably between 0.1 and 20.0 wt .-%, more preferably between 0.5 and 15 wt .-%, most preferably between 1.0 and 10.0 wt .-%.
- Preferred dopants are selected from the class of monostyrylamines, the distyrylamines, the tristyrylamines, the tetrastyrylamines, the Styrylphosphi ⁇ e, the styryl ether and the arylamine.
- a monostyrylamine is understood as meaning a compound which contains a substituted or unsubstituted styryl group and at least one, preferably aromatic, amine.
- a distyrylamine is understood as meaning a compound which contains two substituted or unsubstituted styryl groups and at least one, preferably aromatic, amine.
- a tristyrylamine is understood as meaning a compound which contains three substituted or unsubstituted styryl groups and at least one, preferably aromatic, amine.
- a tetrastyrylamine is meant a compound containing four substituted or unsubstituted styryl groups and at least one, preferably aromatic, amine.
- the styryl groups are particularly preferred stilbenes, which may also be further substituted.
- Corresponding phosphines and ethers are defined in analogy to the amines.
- An arylamine or an aromatic amine in the context of this invention is understood as meaning a compound which contains three substituted or unsubstituted aromatic or heteroaromatic ring systems bonded directly to the nitrogen.
- At least one of these aromatic or heteroaromatic ring systems is preferably a fused ring system, preferably having at least 14 aromatic ring atoms.
- Preferred examples thereof are aromatic anthraceneamines, aromatic anthracenediamines, aromatic pyrenamines, aromatic pyrenediamines, aromatic chrysenamines or aromatic chrysenediamines.
- aromatic anthracene amine is meant a compound in which a diarylamino group is bonded directly to an anthracene group, preferably in the 9-position.
- An aromatic anthracenediamine is understood as meaning a compound in which two diarylamino groups are bonded directly to an anthracene group, preferably in the 9,10-position.
- Aromatic pyrenamines, pyrenediamines, chrysenamines and chrysenediamines are defined analogously thereto, the diarylamino groups being preferably attached to the pyrene in the 1-position or in the 1,6-position.
- Further preferred dopants are selected from indenofluorenamines or diamines, for example according to WO 06/122630, benzoindenofluorenamines or diamines, for example according to WO 08/006449, and dibenzoindenofluorenamines or diamines, for example according to WO 07/140847.
- Examples of dopants from the class of styrylamines are substituted or unsubstituted tristylbenzenes. amines or the dopants described in WO 06/000388, WO 06/058737, WO 06/000389, WO 07/065549 and WO 07/115610.
- the compounds of the formula (1) or (2) to (7) are used as electron transport material and / or as hole blocking material.
- the group Ar is an electron-poor heterocycle, for example imidazole, pyrazole, thiazole, benzimidazole, benzothiazole, triazole, oxadiazole , Benzothiadiazole, phenanthroline, etc., or when the group Ar contains at least one of these heterocycles.
- Particularly preferred Ar groups when the compound of the formulas (1) to (7) is to be used as the electron transporting compound, are the groups of the formulas (9), (10) and (11). Furthermore, it may be preferred if the compound is doped with electron donor compounds.
- an electron transport layer is understood as meaning a layer which adjoins an emission layer or a hole blocking layer on one side and an electron injection layer or the cathode on the other side.
- An electron injection layer is understood as meaning a layer which adjoins the cathode on one side and to an emission layer or a hole blocking layer or an electron transport layer on the other side.
- a hole-blocking compound When the compound according to the formulas (1) or (2) to (7) is used as a hole-blocking compound, it is preferably used in a perforated compound.
- blocking layer used in a fluorescent or phosphorescent electroluminescent device.
- a hole blocking layer is understood as meaning a layer which adjoins an emission layer on one side and an electron transport layer on the other side.
- the compounds of the formula (1) or (2) to (7) are used as the emitting material, in particular in combination with a host material.
- one or more substituents R 1 and or R 2, in particular one or more substituents R 2 represent a group of the formula N (ArI) z.
- an organic electroluminescent device characterized in that one or more layers are coated with a sublimation process.
- 10 * 6 "7 mbar the materials in vacuum sublimation at a pressure below 10 -5 mbar, preferably below mbar, particularly preferably less than 10 by vapor deposition.
- an organic electroluminescent device characterized in that one or more layers are coated with the OVPD (Organic Vapor Phase Deposition) method or with the aid of a carrier gas sublimation.
- the materials are applied at a pressure between 10 "5 mbar and 1 bar.
- an organic electroluminescent device characterized in that one or more layers of solution, such. B. by spin coating, or with any printing process, such.
- any printing process such as screen printing, flexographic printing or offset printing, but more preferably LITI (Light Induced Thermal Imaging, thermal transfer printing) or inkjet printing (ink jet printing), are produced.
- LITI Light Induced Thermal Imaging, thermal transfer printing
- inkjet printing ink jet printing
- soluble compounds are needed. High solubility can be achieved by suitable substitution of the compounds.
- processing and application of the substances in the form of a microemulsion are generally known to the person skilled in the art and the person skilled in the art can apply them to the materials according to the invention without inventive step.
- the compounds according to the invention When used in organic electroluminescent devices, the compounds according to the invention have a higher efficiency and a significantly longer service life, as a result of which the organic electroluminescent devices according to the invention are particularly well suited for use in high-quality and long-lived displays. This is especially true when using the materials as host material for blue dopants and / or as electron transport material. Furthermore, the compounds according to the invention have a high thermal stability and a high glass transition temperature and can be sublimated without decomposition.
- organic field-effect transistors O-FETs
- organic thin-film transistors O-TFTs
- organic light-emitting transistors O-LETs
- organic integrated circuits O-ICs
- organic solar cells O-SCs
- organic FeId quench devices O-FQDs
- LECs organic laser diodes
- O-lasers organic photoreceptors.
- Example 1 6- (10-Naphthalen-2-yl-anthracen-9-yl) -phenanthrene a) (E) -2- (4-Bromophenyl) -3- (2-nitrophenyl) -acrylic acid
- reaction mixture is filtered hot over Celite, washed with warm 10% NH 4 OH solution, neutralized with acetic acid, the resulting solid is filtered off with suction, washed with water and MeOH and dried. Yield of yellow, felted crystals: 52 g (72.3%).
- Solution 2 A solution of 93.6 g (551 mmol) of calcium hypophosphite in 770 mL of 80 0 C hot water is added to a solution of sodium carbonate in 550 mL of 80 0 C hot water, the precipitate is filtered off, the filtrate in a second apparatus, on brought an internal temperature of 50 0 C and 440 mg (7 mmol) of copper powder was added. Solution 1 is added dropwise to this suspension and stirred vigorously for 3 h at 50 ° C. The precipitate is filtered off, washed with water and MeOH, dissolved in toluene and filtered through silica gel. Yield: 21.8 g (90.4%) of yellow powder.
- OLEDs takes place according to a method which is generally described in WO 04/058911 and which in individual cases is adapted to the respective circumstances (eg layer thickness variation in order to achieve optimum efficiency or color).
- the OLEDs consist of the following layer sequence: substrate / hole injection layer (HIL1) 60 nm / hole transport layer (HTM1) 60 nm / emission layer (EML) 30 nm / electron transport layer (ETM) 20 nrn and finally a cathode.
- HIL1 substrate / hole injection layer
- HTM1 hole transport layer
- EML emission layer
- ETM electron transport layer
- cathode The materials are thermally evaporated in a vacuum chamber.
- the emission layer always consists of a matrix material (host) and a dopant (dopant), which is mixed by cover evaporation to the host.
- the cathode is formed by a 1 nm thin LiF layer and a 150 nm Al layer deposited thereon.
- Table 1 shows the chemical structures of the materials used to construct the OLEDs.
- OLEDs are characterized by default; For this purpose, the electroluminescence spectra, the efficiency (measured in cd / A), the power efficiency (measured in Im / W) as a function of the brightness, calculated from current-voltage-brightness characteristics (IUL characteristics), and the lifetime are determined.
- the lifetime is defined as the time after which the initial brightness of 6000 cd / m 2 has fallen to half.
- Table 2 summarizes the results of some OLEDs (Examples 7 to 17).
- the compounds of Examples 1 to 4 or 5 are used.
- the host H1 and the electron transport materials ETM1 and ETM2 are used according to the prior art.
- organic electroluminescent devices containing the compounds according to the invention have a longer lifetime and a better efficiency than organic electroluminescent devices according to the prior art.
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US20100327270A1 (en) | 2010-12-30 |
WO2009100925A1 (de) | 2009-08-20 |
DE102008008953A1 (de) | 2009-08-20 |
JP5638960B2 (ja) | 2014-12-10 |
CN101939279A (zh) | 2011-01-05 |
CN101939279B (zh) | 2015-03-25 |
TWI473778B (zh) | 2015-02-21 |
US8993123B2 (en) | 2015-03-31 |
DE102008008953B4 (de) | 2019-05-09 |
TW200951100A (en) | 2009-12-16 |
KR20100110895A (ko) | 2010-10-13 |
JP2011514885A (ja) | 2011-05-12 |
KR101573096B1 (ko) | 2015-11-30 |
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