Synthesis of asymmetrically substituted 1,4,7,10-tetraazacyclododecanes for the triggered near infrared emission from lanthanide complexes†
Abstract
A synthetic strategy to prepare asymmetrically substituted 1,4,7,10-tetrazadodecane derivatives was developed to prepare a novel series of photoactive donor–acceptor quencher triads based on Yb and Nd complexes; a