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Recently, the stabilities of light-emitting electrochemical cells (LECs) based on cationic iridium(III) complexes with controlled intramolecular π–π stacking interactions by adopting pendant phenyl rings have been dramatically enhanced compared with those of the complexes without π–π stacking interactions within the molecule. Herein, a novel cationic iridium complex [Ir(ppy) 2 (pyphmi)]PF...
Two new blue emitting cationic iridium complexes with N-heterocyclic carbene–pyridine as the ancillary ligand, namely, [Ir(ppy) 2 (pymi)]PF 6 and [Ir(dfppy) 2 (pymi)]PF 6 (pymi is 1-pyridyl-3-methylimidazolin-2-ylidene-C,C 2′ , ppy is 2-phenylpyridine, dfppy is 2-(2,4-difluorophenyl)pyridine and PF6- is hexafluorophosphate), have been prepared, and the photophysical...
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