Redox Changes in Mononuclear Copper Complexes Containing the N₂S₂ Donor Set. Electrochemical Parameters as a Probe of the Structural Features

Abstract

The electrochemical behavior of a wide series of CuN₂S₂ complexes is examined. The stereodynamic copper(II)/copper(I) redox change is by far the most important one in this type of derivative, which in many cases constitutes a valid model for blue copper proteins. Both the thermodynamic and kinetic aspects of the electrode processes are correlated to the stereochemical reorganizations accompanying the redox changes, as well as to the electronic effects of the ligands.

Key Words:

• electrochemistry of mononuclear CuN₂S₂ complexes
• structure-redox relationships in biomimetic models of copper proteins