Optimization of Redox Potential Values-Approaches, Practical Importance, and Theoretical Obscurity

Abstract

This article deals with the state of the art in the field of predictions and optimizations of redox potential values for the couples of complexes and organometallics. The paper assesses how the dependence of the redox potential E ^o(Ox/Red) on the electron affinity of Ox (the ionization energy of Red), on the differences in ΔG of solvation. and on the difference in ΔG accompanying the transformation of composition and structure of the reactant in its transition to the product is reflected in individual approaches dealing with the prediction of E ^o(Ox/Red) values. Theoretical justification of generally used treatments is questioned.

Key Words:

• metal complexes
• redox potential
• electrochemistry
• ligand additivity