3-Dithiolthione-substituted Polythiophene and Its Redox Activities

We synthesized 3-dithiolthione-substituted polythiophene, poly[3-(1ʹ,2ʹ-dithiol-3ʹ-thione-4ʹ-yl)thiophene], by cyclization reaction of poly[3-bis(methoxycaronyl)methyl thiophene]. Its redox behavior and electronic states showed that the oxidation of the polythiophene followed the oxidation of the dithiolthione ring to the radical cation of the dithiolthione ring.