摘要

A chemo-sensor [Ru(bpy)(2)(bpy-DPF)](PF6)(2) (1) (bpy = 2,2'-bipyridine, bpy-DPF = 2,2'-bipyridyl-4,4'-bis(N,N-di(2-picolyl))formylamide) for Cu2+ using di(2-picolyl)amine (DPA) as the recognition group and a ruthenium(II) complex as the reporting group was synthesized and characterized successfully. It demonstrates a high selectivity and efficient signaling behavior only for Cu2+ with obvious red-shifted MLCT (metal-to-ligand charge transfer transitions) absorptions and dramatic fluorescence quenching compared with Zn2+ and other metal ions.