Structure-function relationship in some macrocyclic dicopper complexes

A number of macrocyclic dicopper(II) complexes containing aza-, amino or amido nitrogen and phenolic oxygen donors are described, X-ray crystal structures of several of these compounds are discussed. An account of their electrochemical behaviour and magnetic properties is given. Factors that affect electron transfer behaviour with regard to stabilization of the lso- and mixed-valence species, intramolecular electron transfer, and spin-exchange interactions have been examined in terms of the structural features.