Chiral auxiliary and induced chiroptical sensing with 5d/4f lanthanide–organic macrocycles

Abstract

A stereocontrolled self-assembly of 5d/4f heterometal–organic macrocycles has been realized by a post-assembly chiral auxiliary approach. Interligand π–π stacking interactions promoted chiral transfer from point-chirality of the auxiliary ligand to metal centers and then the helicates to produced CD and CPL active europium assemblies, facilitating a feasible enantiomeric excess determination by induced chiroptical signals.