441072-26-0Relevant articles and documents
High Triplet Energy Iridium(III) Isocyanoborato Complex for Photochemical Upconversion, Photoredox and Energy Transfer Catalysis
Glaser, Felix,Schaer, Raoul,Schmid, Lucius,Wenger, Oliver S.
, p. 963 - 976 (2022/01/19)
Cyclometalated Ir(III) complexes are often chosen as catalysts for challenging photoredox and triplet–triplet-energy-transfer (TTET) catalyzed reactions, and they are of interest for upconversion into the ultraviolet spectral range. However, the triplet e
Rational design, synthesis, and characterization of deep blue phosphorescent Ir(III) complexes containing (4′-Substituted-2′- pyridyl)-1,2,4-triazole ancillary ligands
Park, Hea Jung,Kim, Ji Na,Yoo, Hyun-Ji,Wee, Kyung-Ryang,Kang, Sang Ook,Cho, Dae Won,Yoon, Ung Chan
, p. 8054 - 8064 (2013/09/12)
On the basis of the results of frontier orbital considerations, 4-substituted-2′-pyridyltriazoles were designed to serve as ancillary ligands in 2-phenylpyridine main ligand containing heteroleptic iridium(III) complexes that display deep blue phosphorescence emission. The iridium(III) complexes, Ir1-Ir7, prepared using the new ancillary ligands, were found to display structured, highly quantum efficient (Φp = 0.20-0.42) phosphorescence with emission maxima in the blue to deep blue 448-456 nm at room temperature. In accord with predictions based on frontier orbital considerations, the complexes were observed to have emission properties that are dependent on the electronic nature of substituents at the C-4 position of the pyridine moiety of the ancillary ligand. Importantly, placement of an electron-donating methyl group at C-4′ of the pyridine ring of the 5-(pyridine-2′-yl)-3-trifluoromethyl-1,2,4-triazole ancillary ligand leads to an iridium(III) complex that displays a deep blue phosphorescence emission maximum at 448 nm in both the liquid and film states at room temperature. Finally, an OLED device, constructed using an Ir-complex containing the optimized ancillary ligand as the dopant, was found to emit deep blue color with a CIE of 0.15, 0.18, which is close to the perfect goal of 0.15, 0.15.
Phosphorescent light-emitting iridium complex containing pyridyltriazole ligand
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, (2012/02/06)
An Ir complex having a pyridyl triazole ligand substituted with at least one substituent on its pyridyl ring, and a light emitting material comprising such Ir complex. Such light emitting material was found to have a significantly enhanced photophosphorescence quantum yield and hypsochromic blue shifted photophosphorescent emission over other Ir complexes with a pyridyl triazole ligand having no substituent in its pyridine ring. Use of such light emitting material and an organic light emitting device including the same.
Light-Emitting Material
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, (2009/08/18)
This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [C?N]2ML, comprising chelate monoionic ligands (L), also called ancillary ligands. It has been surprisingly found that when the ancillary ligand comprises a substituted aromatic ring bearing a substituent possessing adequate electron-donating properties, said ligand (L) advantageously participates in the emission process, significantly shifting emission towards higher energies (blue-shift) and enabling appreciable improvement of the emission efficiency of complexes [C?N]2ML. Still objects of the invention are the use of said light emitting materials and organic light emitting device comprising said light emitting material.
LIGHT EMITTING MATERIAL
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Page/Page column 16-17, (2009/01/24)
This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [C^N]2M[P^O] comprising two orthometalated chelate C^N ligands and an ancillary ligand of bidentate phosphinocarboxylate type. It ha
ELECTRO LUMINESCENT METAL COMPLEXES
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Page/Page column 26, (2008/06/13)
Electro luminescent metal, e.g. Ir, complexes are disclosed. The metal complexes comprise at least one ligand Ll and at least one ligand L2, wherein ligand Ll is a 2-phenylpyridine ligand (I), comprising a phenyl ring (A) and a pyridine ring (B). The inte
Light-emitting material
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Page/Page column 12, (2008/06/13)
This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [C^N]2M(T)(L), comprising chelate C^N ligands, monodentate neutral ligand (L) having sp2 hybridized N atom and a monodent