112492-65-6Relevant articles and documents
Four-membered red iridium(iii) complexes with Ir-S-C-S structures for efficient organic light-emitting diodes
Li, Fang-Ling,Su, Ning,Zheng, You-Xuan
, p. 7411 - 7416 (2020)
Three sulfur atom containing ligands (diphenylcarbamodithioate (dpdtc), di-p-tolylcarbamodithioate (medtc) and bis(4-(trifluoromethyl)phenyl)carbamodithioate (cf3dtc)) were prepared for three red iridium(iii) complexes. All(tfmpqz)2Ir(dpdtc),(tfmpqz)2Ir(medtc)and(tfmpqz)2Ir(cf3dtc)complexes were synthesized rapidly at room temperature in 5 min with high yields owing to strong coordination ability between sulfur and iridium atoms, in which 4-(4-(trifluoromethyl)phenyl)quinazoline (tfmpqz) was used as the main ligand. Three Ir(iii) complexes show distinct PL emissions in the range of 617-629 nm with a high phosphorescence quantum yields of up to 83%, respectively. With these complexes as dopants, the organic light-emitting devices (OLEDs) with the double-emissive-layer structure ofITO/HATCN(hexaazatriphenylenehexacabonitrile, 5 nm)/TAPC(bis(4-(N,N-ditolyl-amino)phenyl)cyclohexane, 30 nm)/Ir(iii) complexes:TCTA(4,4′,4′′-tris(carbazol-9-yl)-triphenylamine) (12 wt%, 10 nm)/Ir(iii) complexes:26DCzppy(2,6-bis-(3-(carbazol-9-yl)phenyl)pyridine) (12 wt%, 10 nm)/TmPyPB(1,3,5-tri((3-pyridyl)-phen-3-yl)benzene, 30 nm)/LiF (1 nm)/Al (100 nm) achieved good performances. In particular, the device employing the(tfmpqz)2Ir(cf3dtc)complex exhibits champion performances with a maximum luminance of 30?740 cd m?2and a maximum external quantum efficiency of 26.10%, respectively.
Novel iridium complex with thiocarboxylic acid compound as auxiliary ligand
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Paragraph 0034-0035; 0039, (2018/09/08)
The invention relates to a novel iridium complex with a nitrogen heterocyclic ring as a main ligand and a thiocarboxylic acid compound as an auxiliary ligand. The nitrogen heterocyclic ring and a carbon-sulfur group in an iridium complex molecule help to
Secondary Bonding. Part 15. Influence of Lone Pairs on Co-ordination: Comparison of Diphenyl-Tin(IV) and -Tellurium(IV) Carboxylates and Dithiocarbamates
Alcock, Nathaniel W.,Culver, Jane,Roe, S. Mark
, p. 1477 - 1484 (2007/10/02)
Seven complexes of general type Ph2MX2 with X = carboxylate or dithiocarbamate have been prepared and their molecular structures determined (M = Sn, X = O2CMe, O2CCH2Cl, or S2CNEt2; M = Te, X = O2CCCl3, S2CNEt2, S2CNEtPh, or S2CNPh2).All but one show unsymmetrical bidentate co-ordination by the carboxylate or dithiocarbamate ligands; the tellurium complexes show substantially greater differences between the longer and shorter M-O or M-S distances.The presence of the lone pair transforms the co-ordination geometry from approximately tetrahedral (M = Sn) to pseudo-trigonal bipyramidal (M = Te).Replacing carboxylates by dithiocarbamate has a modest effect when M = Te, but in the tin compound the sulfur ligand co-ordination is almost symmetrical.This contrasts with the unsymmetrical bonding in Me2Sn(S2CNEt2)2.