ELECTROPOLYMERIZED MANGANESE PORPHYRIN FILMS AS CATALYTIC ELECTRODE MATERIALS FOR BIOMIMETIC OXIDATIONS WITH MOLECULAR-OXYGEN

Some recently published results on the electrocatalytic oxidation of h ydrocarbons, olefins and a thioacetamide derivative by molecular oxyge n are described. The catalytic process involves electropolymerized man ganese porphyrin firms as electrode materials in acetonitrile or dichl oromethane solution containing 1-methylimidazole and benzoic (or aceti c) anhydride, with acceptable catalytic efficiency (up to 500 turnover s of the catalyst per hour) and faradaic yield (up to 98%). Confinemen t of the catalyst on the electrode surface markedly improves its stabi lity compared with that of homogeneous electrocatalytic systems and ma kes the supported porphyrin stable and reusable.