A Novel Class of Cyclometalated Platinum(II) Complexes for Solution-Processable OLEDs

Substitution of the chlorido ligand of cyclometalated [Pt (5-R-1,3-di(2-pyridyl) benzene)Cl] (R = methyl, mesityl, 2-thienyl, or 4-diphenylamino-phenyl) by 4-phenylthiazole-2-thiolate leads to related thiolato complexes, which were fully characterized. Their photophysical properties were determined...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2022-08, Vol.27 (16), p.5171
Main Authors: Roberto, Dominique, Colombo, Alessia, Dragonetti, Claudia, Fagnani, Francesco, Cocchi, Massimo, Marinotto, Daniele
Format: Article
Language:English
Subjects:
Benzene
Chloride
coordination compounds
cyclometalated platinum(II) complexes
Dichloromethane
dipyridyl benzene ligand
Emitters
Fabrication
Glass substrates
Hydrocarbons
Ligands
Light-emitting diodes
Measurement techniques
Optoelectronics industry
Platinum
Solvents
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Summary:Substitution of the chlorido ligand of cyclometalated [Pt (5-R-1,3-di(2-pyridyl) benzene)Cl] (R = methyl, mesityl, 2-thienyl, or 4-diphenylamino-phenyl) by 4-phenylthiazole-2-thiolate leads to related thiolato complexes, which were fully characterized. Their photophysical properties were determined in degassed dichloromethane solution. The emission color of the novel complexes can be easily tuned by the nature of the substituents on the terdentate ligand, as is the case for the parent chlorido complexes. Their luminescence Quantum Yield is high, with that of the compounds with the 2-thienyl or 4-diphenylamino-phenyl substituents being much higher than that of the related chloride complexes. The platinum complex with the cyclometalated 5-(2-thienyl)-1,3-di(2-pyridyl) benzene was used as the emitter for the fabrication of a yellow solution-processable OLED.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27165171