Progress in Luminescence Properties of Transition Metal and Lanthanide Heteronuclear Complexes

Using transition metal-organic chromophores with strong charge-transfer transitions as sensitizers for efficient lanthanide luminescence is a new approach developed during the past decade.This review article outlines briefly the relative electronic properties of lanthanide ions and the simplified energy transfer modes between organic ligands and lanthanide ions,and introduces systematically the approaches for efficient sensitized(near-infrared,NIR) lanthanide luminescence,and highlights the advances to achieve lanthanide luminescence through d-f energy transfer together with the applications in various fields.Particularly,recent progresses in our group are summarized concerning the designed syntheses of a series of d-f heteronuclear complexes with bifunctional acetylides as the bridging ligands for achieving lanthanide(Ⅲ) luminescence.Finally,the hot topics and the research trends on lanthanide luminescence in near future are discussed.