Synthesis, structure, luminescence and electrochemical studies of a novel class of ruthenium(II) polypyridine complexes with orthometallated aminocarbene ligands
Abstract
A series of ruthenium(II) orthometallated aminocarbene complexes have been synthesized and characterized. Their electrochemistry, electronic absorption, emission, and the crystal structures of [Ru(phen)2{C(CH2Ph)NHC6H4}]CF3SO3, [Ru(bpy)2{C(CH2Ph)NMeC6H4}]PF6 and [Ru(bpy)2{C(CH2C4H3S)NHC6H4}]CF3SO3 have been studied. The nature of the electronic transitions and the origin of the emission are discussed and an assignment of a 3MLCT emission has been supported by EHMO studies.