T. Benincori et al., CONFORMATIONAL EFFECTS ON ELECTRICAL AND SPECTROSCOPIC PROPERTIES OF BI-THIOPHENES, TER-THIOPHENES, AND POLY-THIOPHENES, Journal of the Chemical Society, Chemical Communications, (8), 1995, pp. 881-882
Using conformationally constrained bi- and ter-thiophenes, the effects
of inter-ring torsional angles on spectroscopic properties of the cor
responding polymers are demonstrated; effects on conductivity are comp
licated by inter-chain contributions.