ELECTRONIC-PROPERTIES OF DINUCLEAR RUTHENIUM-ACETYLIDE COMPLEXES - ELECTROCHEMICAL AND THEORETICAL CHARACTERIZATION

By using electrochemical and spectroscopic techniques, we have investi gated the interactions between the metal sites and the conjugated liga nds in neutral and oxidized dinuclear ruthenium-acetylide derivatives. We have paid particular attention to the influence of the nature of t he conjugated organic linking groups on the coupling strength between the metals, which determines the electrochemical properties of the com plexes. On the basis of the experimental results, we propose a simple model to describe the oxidation process that is confirmed by semiempir ical quantum-chemical calculations.