The syntheses and structures of 1,3-dithiole and tetrathiafulvalene de
rivatives of benzoquinone have been investigated. This work extends ea
rlier investigations of naphthoquinone analogues. The X-ray structures
, NMR, IR, UV, mass spectra, and E degrees 1/2 values from cyclic volt
ammetry measurements are reported. Ab initio STO-6-31G calculations ar
e used to correlate the cyclic voltammetry and UV data for selected co
mpounds.