Electrochemical coating of an electrode by a poly(pyrrole) film containing the viologen (4,4′-bipyridinium) system

Abstract
The electro-oxidation of a pyrrole N-substituted by an aliphatic chain bearing the viologen (4,4′-bipyridinium) group (V2+) produces a film of electroactive poly(pyrrole) containing the V2+ redox center on the electrode surface.