Poly[di(2-thiophenyl) carborane]s: conducting polymers with high electrochemical and thermal resistance

The synthesis, X- ray structure and electropolymerization of three new carbon-carbon linked di(2- thiophenyl) carboranes (1o, 1m and 1p) are reported; the resulting polymers bearing icosahedral ortho-, meta- or para-carborane clusters show high thermal and electrochemical stabilities in comparison with unsubstituted polythiophene; the ortho-carborane-containing polymer has the highest conductivity of the new materials.