Preparation and electrochemical properties of a new organic donor bis-(hydroxymethylethylenedithio)-tetrathiafulvalene

Preparation and characterization of a new organic donor molecule bis(hydroxymethylethylenedithio)-tetrathiafulvalene is reported. Cyclic voltammogram (Figure 1) of the donor molecule shows two reversible redox processes in n-Bu4NBF4/DMF system at half-wave potentials of 0.64 and 0.81 V vs SCE, respectively which are higher than those of the well-known organic donor molecule bis(ethylenedithio)-tetrathiafulvalene with the corresponding values of 0.60 and 0.73 V, respectively. In addition, the pi-donor ability of some related donor molecules of the same series is compared and the effects of solvents on the half-wave potentials of the donors are studied.