2-(THIOPYRAN-4'-YLIDEN)-1,3-DITHIOLES FUSED WITH THIOPHENE UNITS - INTRAMOLECULAR S-S INTERACTION AFFECTING THE REDOX PROPERTIES AND MOLECULAR GEOMETRIES
Citation
T. Suzuki et al., 2-(THIOPYRAN-4'-YLIDEN)-1,3-DITHIOLES FUSED WITH THIOPHENE UNITS - INTRAMOLECULAR S-S INTERACTION AFFECTING THE REDOX PROPERTIES AND MOLECULAR GEOMETRIES, Journal of the Chemical Society, Chemical Communications, (12), 1994, pp. 1431-1432
Categorie Soggetti
Chemistry
SICI code
0022-4936(1994):12<1431:2FWTU->2.0.ZU;2-C
Abstract
The title molecules (1) are strong electron donors like tetrathiafulva
lene (TTF) but possess non-planar geometries with short intramolecular
contacts between S atoms (av. 3.06 Angstrom in 1b, X-ray); by contras
t, their cation radicals are endowed with molecular planarity, and the
shorter S...S contacts (av. 2.87 Angstrom in 1b(.+), X-ray) result in
the enhanced attractive interaction as well as much smaller Coulombic
repulsion in 1(2+) than in TTF2+.
