Structural rigidity and luminescence of chiral lanthanide tetraamide complexes based on 1,4,7,10-tetraazacyclododecane

Abstract

The enantiopure europium and terbium complexes of the macrocyclic ligand 1 are conformationally rigid in solution. The cationic terbium complex gives rise to an intense circularly polarized emission, which offers much promise for its use as a chiral probe