Preparation and properties of poly-4-(1,3-dithiol-2-ylidene)-4H-cyclopenta[2,1-b; 3,4-b′]dithiophene and its derivatives

M. Kozaki, S. Tanaka and Y. Yamashita, J. Chem. Soc., Chem. Commun., 1992, 1137 DOI: 10.1039/C39920001137