Poly(pyrrole-metallodeuteroporphyrin)electrodes: towards electrochemical biomimetic devices

New Cu (II), Mn (III) and Fe (III) deuteroporphyrins functionalized by two electropolymerizable pyrrole groups have been synthesized. The electrooxida tion of these metallodeuteroporphyrins has allowed the formation of conduct ing polypyrrole films exhibiting electrochemical behavior identical to that of the corresponding monomers. In addition, the efficient immobilization o f metallodeuteroporphyrins was corroborated by spectrophotometric measureme nts. Moreover, the potential electrocatalytic properties of Mn (III)-based polypyrrole films in the presence of dioxygen and benzoic anhydride have be en illustrated by cyclic voltammetry. Furthermore, the recognition properti es of Fe (III)-based polypyrrole films have been highlighted with cyanide i n organic electrolyte. Preliminary experiments have also demonstrated the f easibility of such recognition processes in aqueous media. (C) 2000 Elsevie r Science S.A. All rights reserved.