Redox chemistry of thiophene, pyrrole and thiophene-pyrrole-thiophene oligomers

Electrochemical properties of oligopyrroles and thiophene-pyrrole-thiophene oligomers, which are key-step intermediates in electropolymerization processes, have been investigated by means of fast electrochemistry, flash photolysis and pulse radiolysis techniques. From this studies, conclusions have been drawn concerning the reactions involved in the polymer formation, π-dimerization, carbon-carbon bond formation, deprotonation and the nature of coupling positions,