Novel dendralene type cross-conjugate molecules based on 1,3-dithiol-2-ylidene units with thiophene have been prepared. The conjugation in the oxidized stage is mainly through the thiophene core, while the cross-conjugated nature is observed in the neutral state. The CT complex of 2a with TCNQF(4) shows moderated electrical conductivity of 10(-4) S cm(-1).