bis(ethylenedithio)dithiadiazaful-valenes (BEDT-DTDAFs), in four steps via 4,5-(ethylenedithio)thiazole and 3-alkyl-4,5-(ethylenedithio)thiazolium salts, and the generation of conductingcharge-transfer complexes from a new type of dithiadiazafulvalene and tetracyanoquinodimethane are reported.