P. Viruelamartin et al., GEOMETRIC AND ELECTRONIC-STRUCTURE OF DITHIAPYRANYLIDINE - EVOLUTION UPON OXIDATION, Synthetic metals, 57(2-3), 1993, pp. 4572-4578
We present a theoretical investigation of the modifications that succe
ssive oxidation induces on the geometric and electronic structures of
the pi-electron donor dithiapyranylidene. The lengthening of the doubl
e bonds and the shortening of the single bonds calculated as the molec
ular charge increases indicate a gain of aromaticity with oxidation. B
oth the geometric and the electronic structure of dithiapyranylidene s
how a clear evolution towards those of biphenyl as oxidation takes pla
ce.