New symmetrical and asymmetrical tetrathiafulvalene (TTF) derivatives fused
with diphenylthiophene have been successfully prepared via coupling method
using neat P(OEt)(3). Cyclic voltammogram of these compounds show two reve
rsible oxidation potentials similar to TTF. Diphenylthiophene-fused bis(met
hylthio)tetrathiafulvalene forms an 1 : 1 charge-transfer salt with F-4-TCN
Q (tetrafluorotetracyano-p-quinomethane) which exhibits a four-probe electr
ical conductivity in 0.21 - 5.54 S/cm at 300 K.