Synthesis, characterisation and luminescence properties of carbazole-containing platinum(II) and palladium(II) alkynyl complexes

A series of luminescent carbazole-containing palladium(II) and platinum(II) alkynyl complexes has been successfully synthesized and characterized. Through a systematic comparison study, the emission of the platinum(II) bis-alkynyl complexes has been assigned to originate from an admixture of 3IL/3MLCT excited states with predominantly IL character.