SYNTHESIS OF SUBSTITUTED OLIGOTHIOPHENES AND X-RAY CRYSTAL-STRUCTURESOF 3'-METHYL-2,2'5',2''-TERTHIOPHENE, 3,3''-DIMETHYL-2,2'5',2''-TERTHIOPHENE AND 5'-(2-THIENYL)-2,2'3',2''-TERTHIOPHENE
Pa. Chaloner et al., SYNTHESIS OF SUBSTITUTED OLIGOTHIOPHENES AND X-RAY CRYSTAL-STRUCTURESOF 3'-METHYL-2,2'5',2''-TERTHIOPHENE, 3,3''-DIMETHYL-2,2'5',2''-TERTHIOPHENE AND 5'-(2-THIENYL)-2,2'3',2''-TERTHIOPHENE, Perkin transactions. 2, (8), 1997, pp. 1597-1604
A range of substituted oligothiophenes has been prepared and character
ised. Crystal structures were determined for three substituted terthio
phenes. Both in solution and in the solid state, syn-conformers were f
ound to be populated to a greater extent than expected.