Electrochemically-driven conformational shift in mono- and di-copper constrained macrotricyclic cyclen receptors
Abstract
An electrochemical study of mono- and di-copper constrained cyclen macrotricycles is presented. Electrochemical data in DMF solution indicate that the reduction of dinuclear complexes occurs in two steps in the −0.4 to −0.8 V vs.AgCl/Ag potential range yielding CuIICuI and CuICuI species further reduced to Cu metal at highly negative potentials. Mononuclear complexes are reduced in two steps to CuI and Cu metal. Electrochemical data suggest that