DITHIADIAZAFULVALENES - NEW STRONG ELECTRON-DONORS - SYNTHESIS, ISOLATION, PROPERTIES, AND EPR STUDIES

Several dithiadiazafulvalenes, which are potent electron donors, were isolated as pure compounds for the first time. Solid charge-transfer c omplexes with TCNQ and also cation-radical and dication salts with per chlorate gegenions were obtained. Two of the TCNQ complexes are modera tely conductive at room temperature (0.083 and 0.011 S/cm). A solution EPR study, combined with theoretical calculations, allowed the determ ination of the relative equilibrium cation-radical and anion-radical c oncentrations.