Strongly luminescent 5d/4f heterometal-organic macrocycles with open metal sites: post-assembly modification and sensing

摘要

A series of strongly luminescent 5d/4f heterometal-organic macrocycles formulated as Ln(2)(Pt-L)(2) have been constructed from a preformed cis-blocked alkynylplatinum metalloligand (Pt-L) and lanthanide (Ln = La-III, Eu-III, Lu-III) ions. Open metal sites on the lanthanide centres of the heterometal-organic macrocycles facilitate not only the post-assembly modification leading to great enhancement of the luminescence, but also the displacement sensing toward toxic thiophosphonates.