Synthesis and characterization of novel tetrathiafulvalene-type electron donors bearing two pyridine groups

The syntheses of seven new tetrathiafulvalene (TTF) derivatives substituted by two pyridine groups and their characterization by the usual methods are described. Cyclic voltammetry of all the compounds showed two one-electron reversible waves with redox potentials comparable to other pyridine-substituted TTF molecules. X-ray crystal structures were solved for five compounds. In all the molecular structures the pyridine groups lie out of the central TTF plane but are located on the same side of that plane. (c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006.