WO2015039723A1 - Polycyclische phenyl-pyridin iridiumkomplexe und derivate davon für oled - Google Patents
Polycyclische phenyl-pyridin iridiumkomplexe und derivate davon für oled Download PDFInfo
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- WO2015039723A1 WO2015039723A1 PCT/EP2014/002276 EP2014002276W WO2015039723A1 WO 2015039723 A1 WO2015039723 A1 WO 2015039723A1 EP 2014002276 W EP2014002276 W EP 2014002276W WO 2015039723 A1 WO2015039723 A1 WO 2015039723A1
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- -1 Polycyclic phenylpyridine iridium complexes Chemical class 0.000 title claims description 54
- 150000001875 compounds Chemical class 0.000 claims abstract description 59
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 37
- 239000003446 ligand Substances 0.000 claims description 65
- 125000003118 aryl group Chemical group 0.000 claims description 53
- 239000000203 mixture Substances 0.000 claims description 40
- 125000004432 carbon atom Chemical group C* 0.000 claims description 29
- 229910052741 iridium Inorganic materials 0.000 claims description 27
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 25
- 239000011159 matrix material Substances 0.000 claims description 25
- 229910052717 sulfur Inorganic materials 0.000 claims description 22
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 18
- 229910052731 fluorine Inorganic materials 0.000 claims description 16
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 14
- 125000001931 aliphatic group Chemical group 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 125000004122 cyclic group Chemical group 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 125000003342 alkenyl group Chemical group 0.000 claims description 12
- 229910052794 bromium Inorganic materials 0.000 claims description 12
- 125000000304 alkynyl group Chemical group 0.000 claims description 11
- 229910052697 platinum Inorganic materials 0.000 claims description 11
- 125000003545 alkoxy group Chemical group 0.000 claims description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 9
- 125000005309 thioalkoxy group Chemical group 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 125000002950 monocyclic group Chemical group 0.000 claims description 8
- 125000003367 polycyclic group Chemical group 0.000 claims description 8
- 229910052805 deuterium Inorganic materials 0.000 claims description 7
- 229910052763 palladium Inorganic materials 0.000 claims description 7
- 239000010948 rhodium Substances 0.000 claims description 7
- 229910052703 rhodium Inorganic materials 0.000 claims description 7
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 7
- 238000009472 formulation Methods 0.000 claims description 6
- 125000004429 atom Chemical group 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 4
- 150000007942 carboxylates Chemical class 0.000 claims description 4
- 150000004820 halides Chemical class 0.000 claims description 4
- 125000005553 heteroaryloxy group Chemical group 0.000 claims description 4
- 229910052711 selenium Inorganic materials 0.000 claims description 4
- 125000004104 aryloxy group Chemical group 0.000 claims description 3
- 150000001642 boronic acid derivatives Chemical class 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 125000000623 heterocyclic group Chemical group 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical class [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 claims description 2
- 150000004985 diamines Chemical class 0.000 claims description 2
- 125000004986 diarylamino group Chemical group 0.000 claims description 2
- 230000005669 field effect Effects 0.000 claims description 2
- 150000004678 hydrides Chemical class 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 150000002466 imines Chemical class 0.000 claims description 2
- 239000012948 isocyanate Substances 0.000 claims description 2
- 150000002513 isocyanates Chemical class 0.000 claims description 2
- 150000002540 isothiocyanates Chemical class 0.000 claims description 2
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 150000002736 metal compounds Chemical class 0.000 claims description 2
- 229910001507 metal halide Inorganic materials 0.000 claims description 2
- 150000005309 metal halides Chemical class 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 150000003003 phosphines Chemical class 0.000 claims description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 claims description 2
- 238000007146 photocatalysis Methods 0.000 claims description 2
- 108091008695 photoreceptors Proteins 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- OUULRIDHGPHMNQ-UHFFFAOYSA-N stibane Chemical class [SbH3] OUULRIDHGPHMNQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 125000005240 diheteroarylamino group Chemical group 0.000 claims 2
- 150000004703 alkoxides Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 239000010410 layer Substances 0.000 description 68
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 54
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 33
- 150000003254 radicals Chemical class 0.000 description 28
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 24
- 239000000463 material Substances 0.000 description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 22
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 22
- 239000000243 solution Substances 0.000 description 21
- 239000007787 solid Substances 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000001816 cooling Methods 0.000 description 14
- 239000011521 glass Substances 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 12
- 0 CCCC*C(*C1)=C(*)C(C2(CC)C3(CC)C2)=C1c(c(C)c1*)*3c2c1c(*)c(*)c(*)c2* Chemical compound CCCC*C(*C1)=C(*)C(C2(CC)C3(CC)C2)=C1c(c(C)c1*)*3c2c1c(*)c(*)c(*)c2* 0.000 description 11
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 10
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 10
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 125000001072 heteroaryl group Chemical group 0.000 description 9
- 230000007935 neutral effect Effects 0.000 description 9
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 8
- 239000002243 precursor Substances 0.000 description 8
- 238000010992 reflux Methods 0.000 description 8
- 125000006275 3-bromophenyl group Chemical group [H]C1=C([H])C(Br)=C([H])C(*)=C1[H] 0.000 description 7
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- HERDQHZXYBPTOL-UHFFFAOYSA-N 1-(3-bromophenyl)isoquinoline Chemical compound BrC1=CC=CC(C=2C3=CC=CC=C3C=CN=2)=C1 HERDQHZXYBPTOL-UHFFFAOYSA-N 0.000 description 6
- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 150000001716 carbazoles Chemical group 0.000 description 6
- 239000002019 doping agent Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 125000005842 heteroatom Chemical group 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 6
- 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 6
- 238000005424 photoluminescence Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 208000027386 essential tremor 1 Diseases 0.000 description 5
- 208000027385 essential tremor 2 Diseases 0.000 description 5
- 208000031534 hereditary essential 2 tremor Diseases 0.000 description 5
- 238000004128 high performance liquid chromatography Methods 0.000 description 5
- 150000002503 iridium Chemical class 0.000 description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 5
- 238000005160 1H NMR spectroscopy Methods 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 4
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 4
- 239000001273 butane Substances 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 125000004433 nitrogen atom Chemical group N* 0.000 description 4
- 239000012074 organic phase Substances 0.000 description 4
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004528 spin coating Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 3
- OISVCGZHLKNMSJ-UHFFFAOYSA-N 2,6-dimethylpyridine Chemical compound CC1=CC=CC(C)=N1 OISVCGZHLKNMSJ-UHFFFAOYSA-N 0.000 description 3
- FSEXLNMNADBYJU-UHFFFAOYSA-N 2-phenylquinoline Chemical class C1=CC=CC=C1C1=CC=C(C=CC=C2)C2=N1 FSEXLNMNADBYJU-UHFFFAOYSA-N 0.000 description 3
- YCOKLXDOECDIFR-UHFFFAOYSA-N 8,8-dimethyl-8h-indolo[3,2,1-de]acridine-3-boronic acid Chemical compound C12=CC=C(B(O)O)C=C2C2=CC=CC3=C2N1C1=CC=CC=C1C3(C)C YCOKLXDOECDIFR-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 3
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 3
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- CUJRVFIICFDLGR-UHFFFAOYSA-N acetylacetonate Chemical compound CC(=O)[CH-]C(C)=O CUJRVFIICFDLGR-UHFFFAOYSA-N 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 description 3
- 238000004587 chromatography analysis Methods 0.000 description 3
- 239000000539 dimer Substances 0.000 description 3
- 238000000295 emission spectrum Methods 0.000 description 3
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- MILUBEOXRNEUHS-UHFFFAOYSA-N iridium(3+) Chemical compound [Ir+3] MILUBEOXRNEUHS-UHFFFAOYSA-N 0.000 description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N o-dimethylbenzene Natural products CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- LXNAVEXFUKBNMK-UHFFFAOYSA-N palladium(II) acetate Substances [Pd].CC(O)=O.CC(O)=O LXNAVEXFUKBNMK-UHFFFAOYSA-N 0.000 description 3
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000011734 sodium 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
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 3
- 125000005259 triarylamine group Chemical group 0.000 description 3
- AZFHXIBNMPIGOD-LNTINUHCSA-N (z)-4-hydroxypent-3-en-2-one;iridium Chemical compound [Ir].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O AZFHXIBNMPIGOD-LNTINUHCSA-N 0.000 description 2
- BFIMMTCNYPIMRN-UHFFFAOYSA-N 1,2,3,5-tetramethylbenzene Chemical compound CC1=CC(C)=C(C)C(C)=C1 BFIMMTCNYPIMRN-UHFFFAOYSA-N 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 2
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- CHLICZRVGGXEOD-UHFFFAOYSA-N 1-Methoxy-4-methylbenzene Chemical compound COC1=CC=C(C)C=C1 CHLICZRVGGXEOD-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
- QPUYECUOLPXSFR-UHFFFAOYSA-N 1-methylnaphthalene Chemical compound C1=CC=C2C(C)=CC=CC2=C1 QPUYECUOLPXSFR-UHFFFAOYSA-N 0.000 description 2
- LPCWDYWZIWDTCV-UHFFFAOYSA-N 1-phenylisoquinoline Chemical compound C1=CC=CC=C1C1=NC=CC2=CC=CC=C12 LPCWDYWZIWDTCV-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
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
- DXYYSGDWQCSKKO-UHFFFAOYSA-N 2-methylbenzothiazole Chemical compound C1=CC=C2SC(C)=NC2=C1 DXYYSGDWQCSKKO-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
- BPMFPOGUJAAYHL-UHFFFAOYSA-N 9H-Pyrido[2,3-b]indole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=N1 BPMFPOGUJAAYHL-UHFFFAOYSA-N 0.000 description 2
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
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- LTEQMZWBSYACLV-UHFFFAOYSA-N Hexylbenzene Chemical compound CCCCCCC1=CC=CC=C1 LTEQMZWBSYACLV-UHFFFAOYSA-N 0.000 description 2
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- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 1
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- AVYPTBDUFIEJDP-UHFFFAOYSA-N tricyclohexylstibane Chemical compound C1CCCCC1[Sb](C1CCCCC1)C1CCCCC1 AVYPTBDUFIEJDP-UHFFFAOYSA-N 0.000 description 1
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- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- CYTQBVOFDCPGCX-UHFFFAOYSA-N trimethyl phosphite Chemical compound COP(OC)OC CYTQBVOFDCPGCX-UHFFFAOYSA-N 0.000 description 1
- PORFVJURJXKREL-UHFFFAOYSA-N trimethylstibine Chemical compound C[Sb](C)C PORFVJURJXKREL-UHFFFAOYSA-N 0.000 description 1
- BPLUKJNHPBNVQL-UHFFFAOYSA-N triphenylarsine Chemical compound C1=CC=CC=C1[As](C=1C=CC=CC=1)C1=CC=CC=C1 BPLUKJNHPBNVQL-UHFFFAOYSA-N 0.000 description 1
- SLGBZMMZGDRARJ-UHFFFAOYSA-N triphenylene Chemical compound C1=CC=C2C3=CC=CC=C3C3=CC=CC=C3C2=C1 SLGBZMMZGDRARJ-UHFFFAOYSA-N 0.000 description 1
- HVYVMSPIJIWUNA-UHFFFAOYSA-N triphenylstibine Chemical compound C1=CC=CC=C1[Sb](C=1C=CC=CC=1)C1=CC=CC=C1 HVYVMSPIJIWUNA-UHFFFAOYSA-N 0.000 description 1
- QZBJYTDDWVXFDF-UHFFFAOYSA-N tris(2,3,4,5,6-pentafluorophenyl)arsane Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1[As](C=1C(=C(F)C(F)=C(F)C=1F)F)C1=C(F)C(F)=C(F)C(F)=C1F QZBJYTDDWVXFDF-UHFFFAOYSA-N 0.000 description 1
- FQLSDFNKTNBQLC-UHFFFAOYSA-N tris(2,3,4,5,6-pentafluorophenyl)phosphane Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1P(C=1C(=C(F)C(F)=C(F)C=1F)F)C1=C(F)C(F)=C(F)C(F)=C1F FQLSDFNKTNBQLC-UHFFFAOYSA-N 0.000 description 1
- DAGQYUCAQQEEJD-UHFFFAOYSA-N tris(2-methylpropyl)phosphane Chemical compound CC(C)CP(CC(C)C)CC(C)C DAGQYUCAQQEEJD-UHFFFAOYSA-N 0.000 description 1
- NZJQTVDLVPHKGY-UHFFFAOYSA-N tritert-butylstibane Chemical compound CC(C)(C)[Sb](C(C)(C)C)C(C)(C)C NZJQTVDLVPHKGY-UHFFFAOYSA-N 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
- 238000001947 vapour-phase growth Methods 0.000 description 1
- ABDKAPXRBAPSQN-UHFFFAOYSA-N veratrole Chemical compound COC1=CC=CC=C1OC ABDKAPXRBAPSQN-UHFFFAOYSA-N 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H10K85/342—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising iridium
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- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
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- C07F15/0033—Iridium compounds
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- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
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- H05B33/00—Electroluminescent light sources
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Definitions
- the present invention relates to metal complexes for use in electronic devices and electronic devices, in particular organic electroluminescent devices containing these metal complexes, in particular as an emitter.
- OLEDs organic electroluminescent devices
- OLEDs organic electroluminescent devices
- phosphorescent organometallic complexes For quantum mechanical reasons, up to four times energy and power efficiency is possible using organometallic compounds as phosphorescence emitters.
- OLEDs organic electroluminescent devices
- many phosphorescent emitters do not have high solubility for processing from solution, so there is further room for improvement here as well.
- iridium and platinum complexes are used as triplet emitters, which are usually used as cyclo-metallated complexes.
- the ligands are often derivatives of phenylpyridine for green and yellow emission or derivatives of phenylquinoline or phenylisoquinoline for red emission.
- solubility of such complexes is often low, which makes processing from solution difficult or completely impossible.
- Iridium complexes are known in the prior art which are attached to the phenyl ring of the phenylpyridine ligand in the para position for coordination to the metal with an optionally substituted carbazole group (WO 2012/007103, WO 2013/072740) or indenocarbazole group (WO 2013/072740) or indenocarbazole group (WO 2013/072740).
- the invention thus relates to a compound according to formula (1),
- A is the same or different at each occurrence and represents a group of the following formula (A):
- M is a metal selected from the group consisting of iridium, rhodium, platinum and palladium;
- X is the same or different every occurrence CR 1 or N;
- V is the same or different at each occurrence O, S, Se or NR 1 ;
- indices n and m are chosen such that the coordination number on the metal for M equals iridium or rhodium 6 and for M equals platinum or palladium 4.
- An aryl group for the purposes of this invention contains 6 to 40 carbon atoms;
- a heteroaryl group contains 2 to 40 C atoms and at least one 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 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, phenanthrene, quinoline, isoquinoline, 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 heteroaryl groups Heteroaryl groups by a non-aromatic unit (preferably less than 10% of the atoms other than H), such as.
- systems such as 9,9'-spirobifluorene, 9,9-diaryl fluorene, triarylamine, diaryl ethers, stilbene, etc. are to be understood as aromatic ring systems in the context of this invention, and also systems in which two or more aryl groups, for example are interrupted by a linear or cyclic alkyl group or by a silyl group.
- a cyclic alkyl, alkoxy or thioalkoxy group is understood as meaning a monocyclic, a bicyclic or a polycyclic group.
- 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, for example the radicals methyl, ethyl, n-propyl, Propyl, n-butyl, i-butyl, s-butyl, t-butyl,
- Pentenyl cyclopentenyl, hexenyl, cyclohexenyl, heptenyl, cycloheptenyl, octenyl, cyclooctenyl or cyclooctadienyl understood.
- alkynyl groups include ethynyl, propynyl, butynyl, pentynyl, Hexinyl, heptynyl or octynyl understood.
- a C to C 40 alkoxy group is meant for example methoxy, trifluoromethoxy, ethoxy, n-propoxy, i-propoxy, n-butoxy, i-butoxy, s-butoxy, t-butoxy or 2-methylbutoxy.
- aromatic or heteroaromatic ring system having 5-60 aromatic ring atoms, which may be substituted in each case with the abovementioned radicals R and which may be linked via any position on the aromatic or heteroaromatic, are understood, for example, groups which are derived from benzene, Naphthalene, anthracene, benzanthracene, phenanthrene, benzophenanthrene, pyrene, chrysene, perylene, fluoranthene, benzfluoranthene, naphthacene, pentacene, benzpyrene, biphenyl, biphenylene, terphenyl,
- the ring systems formed are aliphatic or aromatic rings fused to the ligand.
- Ring systems are fused cyclohexy groups or fused phenyl groups.
- radicals which bind to the two different aromatic rings of the ligand for example to the phenyl group and the pyridine group, form a ring with one another, which may, for example, lead to azafluorene structures or benzo [h] quinoline structures.
- Q is CR 1
- M is iridium or platinum. Most preferably, M is iridium. When M is platinum or palladium, the subscript n is 1 or 2.
- the index n 1
- the index m 1
- the index m 2
- the subscript n is 1, 2 or 3, preferably 2 or 3.
- the subscript n 1, there are four more monodentate or two bidentate or one bidentate and two monodentate or one tridentate and one a monodentate or a tetradentate ligand L ⁇ preferably two bidentate ligands L ', coordinated to the metal.
- the index m depending on the ligand L ', is equal to 1, 2, 3 or 4.
- the index n 2
- a maximum of one symbol X per cycle stands for N and the other symbols X stand for CR 1 .
- the symbol X is the same or different at each occurrence for CR.
- the following combinations are suitable here:
- the symbol Y is identical or different at each occurrence for a single bond or a divalent group selected from C (R 1 ) 2, NR 1 or O, preferably at most one of the groups Y for a single bond stands.
- Preferred A groups are the groups of the following formulas (A-1), (A-2) and (A-3)
- group A is the structures of the following formulas (A-1a), (A-2a) and (A-3a)
- group A is the structures of the following formulas (A-1 b), (A-2b) and (A-3b),
- M is iridium or platinum
- A is the same or different each occurrence of a group of the above formula (A-1a) or (A-2a) or (A-3a);
- X is the same or different every occurrence CR 1 ;
- V is the same or different at each occurrence O, S or NR 1 ;
- Y is the same or different at each occurrence C (R 1 ) 2, NR 1 or O.
- M is iridium
- A is the same or different each occurrence of a group of the above (A-1b) and (A-2b) and (A-3b);
- X is the same or different every occurrence CR 1 ;
- V is S
- Y is the same or different at each occurrence C (R 1 ) 2, NR 1 or O.
- the substructures of the formula (2) or (3) are therefore selected from the substructures of the following formulas (4) or (5),
- adjacent radicals R 1 can also form a ring with one another.
- quinoline or isoquinoline structures accessible from the pyridine rings which may be substituted by one or more radicals R 2 , or the two coordinating cycles are bridged with one another.
- Preferred structures resulting from the fact that adjacent radicals R 1 form a ring with each other are the structures of the following formulas (4-1), (4-2), (4-3), (4-4), (5- 1), (5-2) and (5-3),
- the group A is preferably selected from
- a bridging unit Z may be present which contains this ligand L with a or several other ligands L and L 'linked.
- a bridging unit Z is present, so that the ligands have tridentate or polydentate or polypodal character. There may also be two such bridging units Z present. This leads to the formation of macrocyclic ligands or to the formation of cryptates.
- Preferred structures with polydentate ligands or with polydentate ligands are the metal complexes of the following formulas (6) to (9),
- the bridging unit V can also be constructed asymmetrically, ie the combination of Z to L or L 'does not have to be identical.
- the bridging unit Z may be neutral, single, double or triple negative or single, double or triple positively charged. Z is preferably neutral or simple negatively or simply positively charged.
- the charge of Z is preferably chosen so that a total of a neutral complex is formed.
- Z is a trivalent group, ie three ligands L are bridged with one another or two ligands L with L 'or one ligand L with two ligands L', Z is preferably identical or different at each occurrence selected from the group consisting of B, B ( R 2 ) -, B (C (R 2 ) 2 ) 3,
- the other symbols used have the meanings given above.
- Z is a divalent group, ie two ligands L bridged with each other or a ligand L with L '
- Preferred neutral, monodentate ligands L ' are selected from carbon monoxide, nitrogen monoxide, alkyl cyanides, such as.
- trifluorophosphine trimethylphosphine, tricyclohexylphosphine, tri- terf-butylphosphine, triphenylphosphine, tris (pentafluorophenyl) phosphine, phosphites, such as.
- trimethyl phosphite triethyl phosphite
- arsines such as.
- Trifluorostibine trimethylstibine, tricyclohexylstibine, tri-tert-butylstibin, triphenylstibin, tris (pentafluorophenyl) stibin, nitrogen-containing heterocycles, such as.
- pyridine pyridazine, pyrazine, pyrimidine, triazine, and carbenes, in particular Arduengo carbenes.
- Preferred monoanionic, monodentate ligands L ' are selected from hydride, deuteride, the halides F-, Cl ⁇ ⁇ and ⁇ , alkyl acetylides, such as.
- methyl-C C ⁇
- tert-butyl-C C ⁇
- arylacetylidene such as.
- Carboxylates such as. Acetate, trifluoroacetate, propionate, benzoate,
- Aryl groups such as. Phenyl, naphthyl, and anionic nitrogen-containing heterocycles such as pyrrolidine, imidazolide, pyrazolide.
- the alkyl groups in these groups are preferably C 1 -C 20 -alkyl groups,
- C 1 -C 10 -alkyl groups particularly preferably C 1 -C 4 -alkyl groups.
- An aryl group also means heteroaryl groups. These groups are as defined above.
- Preferred neutral or mono- or dianionic, bidentate or higher-dentate ligands L ' are selected from diamines, such as. Example, ethylene diamine, ⁇ , ⁇ , ⁇ ', ⁇ ' tetramethylethylenediamine, propylenediamine, ⁇ , ⁇ , ⁇ ', ⁇ ' - tetramethylpropylenediamine, cis- or trans-diaminocyclohexane, cis- or trans-N, N, N ' , N'-tetramethyldiaminocyclohexane, imines, such as. B.
- Bipyridine, o-phenanthroline, diphosphines such as.
- B bis-diphenylphosphino methane, bis-diphenylphosphinoethane, bis (diphenylphosphino) propane, bis (diphenylphosphino) butane, bis (dimethylphosphino) methane, bis (dimethylphosphino) ethane, bis (dimethylphosphino) propane, bis (diethylphosphino) methane, bis (diethylphosphino) ethane, bis (diethylphosphino) - propane, bis (di-ferf-butylphosphino) methane, bis (di-ferf-butylphosphino) ethane, bis (ferf-butylphosphino) propane, 1, 3-diketonates derived from 1,3-diketones, such as.
- acetylacetone benzoylacetone, 1, 5-diphenylacetyl acetone, dibenzoylmethane, bis (1,1-trifluoroacetyl) methane, 3-ketonates derived from 3-keto esters, such as.
- ethyl acetoacetate 1, 5-diphenylacetyl acetone, dibenzoylmethane, bis (1,1-trifluoroacetyl) methane
- 3-ketonates derived from 3-keto esters, such as.
- 3-keto esters such as.
- ethyl acetoacetate ethyl acetoacetate
- Carboxylates derived from aminocarboxylic acids such as.
- pyridine-2-carboxylic acid quinoline-2-carboxylic acid, glycine, ⁇ , ⁇ -dimethylglycine, alanine, ⁇ , ⁇ -dimethylaminoalanine
- salicyliminates derived from salicylimines such as.
- methylsalicylimine, ethylsalicylimine, phenylsalicylimine dialcoholates derived from dialcohols, such as.
- ethylene glycol, 1, 3-propylene glycol and dithiolates derived from dithiols, such as. B. 1, 2-ethylenedithiol, 1, 3-propylenedithiol.
- Preferred tridentate ligands are borates of nitrogen-containing heterocycles, such as. As tetrakis (1-imidazolyl) borate and tetrakis (1-pyrazolyl) borate.
- bidentate monoanionic ligands L ' which have with the metal a cyclometall believing five-membered or six-membered ring with at least one metal-carbon bond, in particular a cyclometall striv five-membered ring.
- ligands such as are generally used in the field of phosphorescent metal complexes for organic electroluminescent devices, ie ligands of the type phenylpyridine, naphthylpyridine, phenylquinoline, phenylisoquinoline, etc., which may each be substituted by one or more radicals R 1 .
- Electroluminescent devices a plurality of such ligands is known, and he can without further inventive step other such
- ligand L for compounds according to formula (1).
- the combination of two groups represented by the following formulas (23) to (50) is particularly suitable, one group bonding via a neutral nitrogen atom or a carbene atom and the other group via a negatively charged carbon atom or a negative one charged nitrogen atom binds.
- the ligand L 'can then be formed from the groups of formulas (23) to (50) by each of these groups bonding to each other at the position indicated by #.
- the position at which the groups coordinate to the metal is indicated by *.
- These groups can also be bound to the ligand L via one or two bridging units Z.
- the symbols used have the same meaning as described above, and preferably are a maximum of three symbols X in each group for N, more preferably are a maximum of two symbols X in each group for N, most preferably is a maximum of one symbol X in each group for N.
- all symbols X are identical or different for each occurrence for CR 1 .
- the groups according to formulas (34) to (38) may also contain O instead of S.
- ligands L ' are 1,3,5-cis-cyclohexane derivatives, in particular of formula (51), 1,1,1-tri (methylene) methane derivatives, in particular of formula (52) and 1,1,1-trisubstituted methanes , in particular of the formula (53) and (54),
- R 1 has the abovementioned meaning and A, same or different at each occurrence, represents O, "S”, COO ⁇ P (R 1) 2 or N (R 1 ) 2 stands.
- radicals R 2 each of which may be substituted by one or more radicals R 2 ;
- radicals R 1 can also form a mono- or polycyclic, aliphatic, aromatic and / or benzoanneiltechnischtechnische
- R 1 can also form a mono- or polycyclic, aliphatic, aromatic and / or benzoanneiltechnischtechnische
- R 1 can also form a mono- or polycyclic, aliphatic, aromatic and / or benzoanneilieris ring system with each other.
- radicals R 1 are identically or differently selected on each occurrence from the group consisting of H, F, Br, CN, B (OR 2 ) 2, a straight-chain alkyl group having 1 to 6 C atoms, in particular methyl, or a branched one or cyclic alkyl group having 3 to 10 C atoms, in particular iso-propyl or tert-butyl, wherein one or more H atoms may be replaced by F, or an aromatic or heteroaromatic ring system having 5 to 12 aromatic ring atoms, each by a or a plurality of radicals R 2 may be substituted;
- radicals R 1 can also form a mono- or polycyclic, aliphatic, aromatic and / or benzoanneilieris ring system with each other.
- the metal complexes according to the invention can in principle be prepared by various methods. However, the methods described below have been found to be particularly suitable.
- Another object of the present invention is a process for the preparation of the metal complex compounds according to formula (1) by reacting the corresponding free ligands with metal alcoholates of the formula (55), with metal ketoketones of the formula (56), with metal halides of the formula (57) or with dimeric metal complexes of the formula (58),
- metal compounds in particular iridium compounds, which carry both alcoholate and / or halide and / or hydroxyl and also ketoketonate radicals. These connections can also be loaded.
- iridium compounds which are particularly suitable as starting materials are disclosed in WO 2004/085449.
- heteroleptic complexes are preferably based on the chloro-bridged dimer, ie for iridium complexes of [(L) 2 lrCl] 2 or
- the synthesis of the complexes is preferably carried out as in
- Heteroleptic complexes can also be synthesized, for example, according to WO 2005/042548.
- the synthesis can be activated, for example, thermally, photochemically, by microwave radiation and / or in an autoclave.
- the compounds according to the invention of the formula (1) can be obtained in high purity, preferably more than 99% (determined by means of 1 H-NMR and / or HPLC).
- formulations of the compounds according to the invention are required. These formulations may be, for example, solutions, dispersions or emulsions. It may be preferable to use mixtures of two or more solvents for this purpose.
- Suitable and preferred solvents are, for example, toluene, anisole, o-, m- or p-xylene, methyl benzoate, mesitylene, tetralin, veratrol, THF, methyl THF, THP, chlorobenzene, dioxane, phenoxytoluene, in particular 3-phenoxytoluene, ( -) - Fenchone, 1,2,3,5-tetramethylbenzene, 1, 2,4,5-tetramethylbenzene, 1-methylnaphthalene, 2-methylbenzothiazole, 2-phenoxyethanol, 2-pyrrolidinone, 3-methylanisole, 4-methylanisole , 3,4-dimethylanisole, 3,5-dimethylanisole, acetophenone, ⁇ -terpineol, benzothiazole, butyl benzoate, cumene, cyclohexanol, cyclohexanone, cyclohexylbenzene, decalin,
- Another object of the present invention is therefore a
- a formulation in particular a solution or dispersion, containing at least one compound according to formula (1) or according to the above-mentioned preferred embodiments and at least one further compound, in particular a solvent.
- the formulation may also contain further compounds, for example one or more matrix materials.
- the above-described complexes of the formula (1) and the above-mentioned preferred embodiments may be used as an active component in an electronic device.
- Another object of the present invention is therefore the use of a compound of formula (1) or according to one of the preferred embodiments in an electronic device.
- the compounds according to the invention can be used for the production of singlet oxygen, in photocatalysis or in oxygen sensors.
- Yet another object of the present invention is an electronic device containing at least one compound according to formula (1) or according to the preferred embodiments.
- An electronic device is understood to mean a device which contains anode, cathode and at least one layer, this layer containing at least one organic or organometallic compound.
- the electronic device according to the invention thus contains anode, cathode and at least one layer which contains at least one compound of the above-mentioned formula (1).
- preferred electronic devices are selected from the group consisting of organic electroluminescent devices (OLEDs, PLEDs), organic integrated circuits (O-ICs), organic field effect transistors (O-FETs), organic thin film transistors (O-TFTs), organic light-emitting Transistors (O-LETs), organic solar cells (O-SCs), organic optical detectors, organic photoreceptors, organic field quench devices (O-FQDs), light-emitting electrochemical cells (LECs) or organic laser diodes (O-lasers) containing in at least one layer at least one compound according to the above-mentioned formula (1). Particularly preferred are organic electroluminescent devices.
- Active components are generally the organic or inorganic materials incorporated between the anode and cathode, for example, charge injection, charge transport or charge blocking materials, but especially emission materials and matrix materials.
- the compounds according to the invention exhibit particularly good properties as emission material in organic electroluminescent devices.
- a preferred embodiment of the invention are therefore organic electroluminescent devices.
- the organic electroluminescent device includes cathode, anode and at least one emitting layer.
- they may also contain further layers, for example one or more hole injection layers, hole transport layers, hole blocking layers, electron transport layers, electron injection layers, exciton blocking layers, electron blocking layers, charge generation layers and / or organic or inorganic p / n junctions.
- interlayers may be introduced between two emitting layers which, for example, have an exciton-blocking function and / or control the charge balance in the electroluminescent device. It should be noted, however, that not necessarily each of these layers must be present.
- the organic electroluminescent device can be any organic electroluminescent device.
- the organic electroluminescent device can be any organic electroluminescent device.
- a preferred embodiment is three-layer systems, wherein the three layers show blue, green and orange or red emission (see, for example, WO 2005/011013) or systems which have more than three emitting layers.
- Another preferred embodiment is two-layer systems wherein the two layers show either blue and yellow or blue-green and orange emission. Two-layer systems are of particular interest for lighting applications. Such embodiments are particularly suitable with the compounds according to the invention, since they often show yellow or orange emission.
- the white-emitting electroluminescent devices can be used for lighting applications or as a backlight for displays or with color filters as a display.
- the organic electroluminescent device contains the compound according to formula (1) or the above-mentioned preferred embodiments as
- emitting compound in one or more emitting layers When the compound of the formula (1) is used as an emitting compound in an emitting layer, it is preferably used in combination with one or more matrix materials.
- Mixture of the compound of formula (1) and the matrix material contains between 1 and 99 vol .-%, preferably between 2 and
- the mixture contains between 99 and 1% by volume, preferably between 98 and 10% by volume, more preferably between 97 and 60% by volume, in particular between 95 and 85% by volume of the matrix material or of the matrix materials to the total mixture of emitter and matrix material.
- the triplet level of the matrix material is higher than the triplet level of the emitter.
- Suitable matrix materials for the compounds according to the invention are ketones, phosphine oxides, sulfoxides and sulfones, for. B. according to WO 2004/013080, WO 2004/093207, WO 2006/005627 or WO
- Diazasilol derivatives e.g. B. according to WO 2010/054729
- Diazaphospholderivate z. B. according to WO 2010/054730
- triazine derivatives z. B. according to WO
- a preferred combination is, for example, the use of an aromatic ketone or a triazine derivative with a triarylamine derivative or a carbazole derivative as a mixed matrix for the metal complex according to the invention.
- triplet emitter with the shorter-wave emission spectrum serves as a co-matrix for the triplet emitter with the longer-wave emission spectrum.
- blue or green emitting triplet emitters can be used as a co-matrix for the complexes of the formula (1) according to the invention.
- the compounds according to the invention are also particularly suitable as phosphorescent emitters in organic electroluminescent devices, as described, for example, in US Pat. In WO 98/24271, US 2011/0248247 and US 2012/0223633. In these multi-colored display components, an additional blue emission layer is vapor-deposited over all pixels, even those with a different color from blue. It was found that the compounds of the invention, when they are used as emitters for the red and / or green pixels, together with the deposited blue emission layer lead to very good emission.
- low work function metals, metal alloys or multilayer structures of various metals are preferable, such as alkaline earth metals, alkali metals, main group metals or lathanoids (eg, Ca, Ba, Mg, Al, In, Mg, Yb, Sm, etc.).
- alkaline earth metals alkali metals
- main group metals or lathanoids eg, Ca, Ba, Mg, Al, In, Mg, Yb, Sm, etc.
- alloys of an alkali or alkaline earth metal and silver for example an alloy of magnesium and silver.
- further metals which have a relatively high work function such as eg. B. Ag, which then usually combinations of metals, such as Ca / Ag or Ba / Ag are used.
- a metallic cathode and the organic semiconductor may also be preferred to introduce between a metallic cathode and the organic semiconductor a thin intermediate layer of a material with a high dielectric constant.
- a metallic cathode and the organic semiconductor a thin intermediate layer of a material with a high dielectric constant.
- Suitable examples of this are alkali metal or alkaline earth metal fluorides, but also the corresponding oxides or carbonates (for example LiF, Li 2 O, BaF 2 , MgO, NaF, CsF, CS 2 CO 3, etc.).
- the layer thickness of this layer is preferably between 0.5 and 5 nm.
- the anode high workfunction materials are preferred.
- the anode has a work function greater than 4.5 eV. Vacuum up.
- metals with a high redox potential are suitable for this purpose, such as eg Aeg, Pt or Au.
- the electrons z. B. AI / Ni / NiO x, Al / PtO x
- metal / metal oxide may be preferred, metal / metal oxide.
- at least one of the electrodes must be transparent to allow either the irradiation of the organic material (O-SC) or the outcoupling of light (OLED / PLED, O-LASER).
- a preferred construction uses a transparent anode. preferred
- Anode materials are here conductive mixed metal oxides. Particularly preferred are indium tin oxide (ITO) or indium zinc oxide (IZO).
- conductive, doped organic materials in particular conductive doped polymers.
- all the materials used in the prior art for the layers can be used in the other layers, and those skilled in the art can combine any of these materials in an electronic device with the inventive materials without any inventive step.
- the device is structured accordingly (depending on the application), contacted and finally hermetically sealed because the life of such devices drastically shortened in the presence of water and / or air.
- an organic electroluminescent device characterized in that one or more layers are coated with a sublimation process.
- 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 "applied 5 mbar and 1 bar.
- OVJP organic vapor jet printing
- the materials are applied directly through a nozzle and patterned (eg. BMS Arnold et al., Appl. Phys. Lett., 2008, 92, 053301).
- 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.
- 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
- the organic electroluminescent device may also be fabricated as a hybrid system by applying one or more layers of solution and depositing one or more other layers.
- a hybrid system by applying one or more layers of solution and depositing one or more other layers.
- the electronic devices according to the invention are distinguished by the following surprising advantages over the prior art:
- the compounds of formula (1) have good solubility in a variety of common organic solvents and are therefore very well suited for processing from solution.
- the compounds have high photoluminescence quantum efficiency.
- the compounds have a narrower emission spectrum than compounds substituted with similar carbazole derivatives of the prior art. This results in a greater color purity.
- Tris- (6-tert-butyl-9, 0-dimethylbenzo [4,5] imidazo [1,2-c] quinazolinato) iridium (III) can be prepared as described in the application WO 2011/157339: A mixture of 4.90 g (10.1 mmol) of tris (acetylacetonato) iridium (III) [15635-87-7] and 18.20 g (60.0 mmol) of 6-tert-butyl-9,10-dimethylbenzo [4,5] imidazo [1, 2-c] quinazoline [1352330-29-0] is melted with a glass-coated magnetic stirring bar in a thick-walled 50 ml glass vial under vacuum (pressure about 10 "5 mbar).
- the vial is heated for 100 h at 270 ° C with stirring. After cooling, the ampoule is opened (CAUTION: The ampoules are usually under pressure) .
- the sinter cake is stirred with 100 g glass beads (diameter 3 mm) in 100 ml dichloromethane for 3 h and mechanically digested in.
- the fine suspension is decanted from the glass beads, the solid is filtered off with suction through a glass filter frit and in vacuo
- lr (L4Br) 3 can be prepared by bromination of Ir (L4) 3 :
- Dimer chlorine-bridged iridium complexes can be synthesized analogously to S.
- the precursors [Ir (L2Br) 2 Cl] 2 and [Ir (L5Br) 2 Cl] 2 can be prepared from iridium trichloride hydrate and the corresponding ligand L:
- the organic phase is separated, washed three times with 150 ml of water and dried over magnesium sulfate.
- the solvent is removed in vacuo.
- the residue is extracted with 150 ml of toluene in a hot extractor over about 25 g of alumina (basic, activity level 1).
- the mixture is concentrated in vacuo to about 50 ml and slowly added with 150 ml of ethanol.
- the solid formed is filtered off with suction and dried in vacuo. There remain 17.4 g (36 mmol, 80% of theory) as a yellow solid.
- the boronic acid esters BS2 to BS9 can be prepared in an analogous manner
- the ligands L7 to L '6 can be prepared:
- the solid formed is separated on a glass filter frit, washed three times with 50 ml of water and three times with 50 ml of methanol and dried in vacuo.
- the solid is extracted with 400 ml of toluene in a hot extractor over about 50 g of alumina (basic, activity level 1).
- the suspension is concentrated in vacuo to about 100 ml, treated with 200 ml of methanol and stirred for 1 h.
- the solid is filtered off, washed twice with 50 ml of methanol and dried in vacuo. If the purity is then below 99% by 1 H-NMR and / or HPLC, the hot extraction step is repeated accordingly. There remain 8.97 g (10.4 mmol, 83% of theory) as a red powder.
- the remaining residue is suspended in 500 ml of ethanol, 1.83 g (11.8 mmol) of 2-phenylpyridine and 1.54 g (14.4 mmol) of 2,6-dimethylpyridine are added and the mixture is heated to reflux for 48 h The solid is separated on a glass filter frit, washed three times with about 50 ml of ethanol and dried in vacuo The remaining residue is suspended in 250 ml of ethylene glycol and The mixture is heated for 8 h to 190 ° C.
- the phases are separated.
- the aqueous phase is washed three times with 100 ml of toluene and twice with 100 ml of dichloromethane.
- the combined organic phases are washed three times with 250 ml of water, dried over MgSO 4 and concentrated in vacuo to about 150 ml.
- 450 ml of ethanol are slowly added dropwise with stirring, then the suspension is stirred for 1 h.
- the solid is filtered off, washed twice with 50 ml of ethanol, dried in vacuo and then extracted in a hot extractor with about 250 ml of toluene over 75 g of alumina (basic, activity level 1).
- the solvent is concentrated in vacuo to about 75 ml.
- the suspension is stirred for 1 h, then the solid is filtered off with suction and dried in vacuo.
- the product is purified by chromatography on silica gel with a THF / MeOH mixture (90:10 vv), freed from solvent under vacuum and finally in a high vacuum (pressure about 10 "6 mbar) at 300 ° C annealed. There remains 4.95 g ( 3.0 mmol, 42% of theory) as a red powder with a purity of 99.8% by HPLC.
- the complexes K2 to K36 can be prepared. If the solubility in toluene is too low, hot extraction may be used. if carried out with chlorobenzene or dichlorobenzene.
- Typical typical eluents for the chromatographic purification are THF / MeOH, dichloromethane / heptane, dichloromethane / ethyl acetate,
- the complexes K37 to K42 can be prepared from Ir (L3Br) 3 :
- the complexes K59 to K66 can be prepared from Ir (L4Br) 3 :
- the complexes K68 to K85 can be prepared.
- Exemplary typical eluents for chromatographic purification are THF / MeOH, dichloromethane / heptane, dichloromethane / ethyl acetate,
- the phases are separated.
- the aqueous phase is washed three times with 100 ml of toluene.
- the combined organic phases are washed three times with 250 ml of water, dried over MgSO 4 and concentrated in vacuo to about 150 ml.
- 450 ml of ethanol are slowly added dropwise with stirring, then the suspension is stirred for 1 h.
- the solid is filtered off, washed twice with 50 ml of ethanol, dried in vacuo and then in a hot extractor with about Extracted 250 ml of xylene over 50 g of alumina (basic, activity level 1).
- the solvent is concentrated in vacuo to about 50 ml.
- the suspension is stirred for 1 h, then the solid is filtered off with suction and dried in vacuo.
- the product is purified by chromatography on silica gel with a heptane / dichloromethane mixture (90:10 vv), freed from solvent under vacuum and finally in a high vacuum (pressure about 10 "6 mbar) at 300 ° C annealed. There remain 16.2 g (1.6 mmol, 41% of theory) as a red powder with a purity of 99.8% by HPLC.
- Bis - [(3-bromophen-1-yl) pyridinato] platinum (II) can be prepared as described in WO 2004/041835.
- Bis- ⁇ 1- [3- (8,8-dimethyl-8H-indolo [3,2,1-de] acridin-3-yl) phen-1-yl] pyridinato ⁇ platinum (II) can be prepared therefrom analogously to F.1 described from bis - [(3-bromophen-1-yl) pyridinato] - platinum (II) and 8,8-dimethyl-8H-indolo [3,2,1-de] acridin-3-yl
- the comparative examples V1 and V2 can be prepared according to WO 2011/141120.
- the complexes according to the invention can be dissolved in toluene.
- the characteristics of photoluminescence spectra of toluene solutions of the complexes from Table 1 are listed in Table 2. In this case, solutions were used with a concentration of about 1 mg / ml and the optical excitation in the local absorption maximum performed (at about 450 nm for red complexes, about 380 nm for blue complexes, about 410 nm for green complexes).
- Complexes according to the invention exhibit a narrower half-width and a red-shifted spectrum.
- the complexes according to the invention can be processed from solution and, compared to vacuum-processed OLEDs, lead to OLEDs which are easier to produce and nevertheless have good properties.
- the preparation of completely solution-based OLEDs has already been described many times in the literature, z. In WO 2004/037887.
- the production of vacuum-based OLEDs is also widely prescribed, inter alia in WO 2004/058911.
- solution-based and vacuum-based deposited layers within an OLED were combined so that the processing up to and including the emission layer was from solution and in the subsequent layers (hole blocking layer and electron transport layer) from the vacuum.
- the above-described general methods are described as follows for the here described adapted and combined (layer thickness variation, materials):
- the structure is as follows:
- PEDOT 80 nm or 20 nm, adapted for red or green emission layers
- Emission layer (60 nm)
- HBL hole blocking layer
- Electron transport layer (ETL) (40 nm),
- the substrate used is glass flakes coated with structured ITO (indium tin oxide) 50 nm thick.
- structured ITO indium tin oxide
- PEDOT PSS (poly (3,4-ethylenedioxy-2,5-thiophene): polystyrene sulfonate, obtained from Heraeus Precious Metals GmbH & Co. KG, Germany).
- PEDOTPSS is spun in air from water and subsequently heated in air at 180 ° C for 10 minutes to remove residual water.
- the interlayer and the emission layer are applied to these coated glass slides.
- the interlayer used is for hole injection and can be networked. There is used a polymer of the structure shown below, which according to WO
- 2010/097155 can be synthesized.
- the interlayer is dissolved in toluene.
- the typical solids content of such solutions is about 5 g / l, if, as here, the typical for a device layer thickness of 20 nm is to be achieved by spin coating.
- the layers are spun in an inert gas atmosphere, in this case argon, and heated for 60 minutes
- the emission layer is always composed of at least one matrix material (host material, host material) and an emitting dopant (dopant, emitter). Furthermore, mixtures can arise several matrix materials as well as co-dopants.
- the mixture for the emission layer is dissolved in toluene.
- the typical solids content of such solutions is about 18 g / l, if, as here, the typical for a device layer thickness of 60 nm is to be achieved by spin coating.
- the layers are spin-coated in an inert gas atmosphere, in the present case argon, and baked at 180 ° C. for 10 minutes.
- the materials used in the present case are shown in Table 3.
- the materials for the hole blocking layer and electron transport layer are thermally evaporated in a vacuum chamber. It can be z.
- the electron transport layer consist of more than one material, which are admixed by co-evaporation in a certain volume fraction.
- An indication such as ETM1: ETM2 (50%: 50%) here means that the materials ETM1 and ETM2 are present in a volume fraction of 50% each in the layer.
- the materials used in the present case are shown in Table 4.
- the cathode is made by the thermal evaporation of a 100nm
- the OLEDs are characterized by default. For this purpose, the electroluminescence spectra, current-voltage-luminance characteristics (IUL characteristics) assuming a
- the electroluminescence spectra are measured at a luminance of 1000 cd / m 2 and from this the CIE 1931 x and y color coordinates are calculated.
- LD80 @ 8000 cd / m 2 is the lifetime until the OLED has dropped to 80% of the initial intensity, ie 6400 cd / m 2 , at a starting brightness of 8000 cd / m 2 .
- LD80 @ 10000 cd / m 2 is the lifetime until the OLED has dropped to 80% of the initial intensity, ie to 8000 cd / m 2 , at a starting brightness of 0000 cd / m 2 .
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Abstract
Description
Claims
Priority Applications (5)
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US15/022,231 US20160233444A1 (en) | 2013-09-17 | 2014-08-19 | Polycyclic phenylpyridine iridium complexes and derivatives thereof for oleds |
KR1020167010015A KR20160058874A (ko) | 2013-09-17 | 2014-08-19 | Oled 를 위한 폴리시클릭 페닐피리딘 이리듐 착물 및 그의 유도체 |
CN201480051250.6A CN105555792B (zh) | 2013-09-17 | 2014-08-19 | 用于oled的多环苯基吡啶铱络合物及其衍生物 |
EP14752791.5A EP3046927B1 (de) | 2013-09-17 | 2014-08-19 | Polycyclische phenyl-pyridin iridiumkomplexe und derivate davon für oled |
JP2016543330A JP6434035B2 (ja) | 2013-09-17 | 2014-08-19 | Oledのための多環式フェニルピリジンイリジウム錯体およびその誘導体 |
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US (1) | US20160233444A1 (de) |
EP (1) | EP3046927B1 (de) |
JP (1) | JP6434035B2 (de) |
KR (1) | KR20160058874A (de) |
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CN105555792A (zh) | 2016-05-04 |
JP6434035B2 (ja) | 2018-12-05 |
WO2015039723A8 (de) | 2016-04-21 |
KR20160058874A (ko) | 2016-05-25 |
CN105555792B (zh) | 2019-12-31 |
JP2016538323A (ja) | 2016-12-08 |
US20160233444A1 (en) | 2016-08-11 |
EP3046927A1 (de) | 2016-07-27 |
EP3046927B1 (de) | 2019-01-30 |
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