The synthesis, characterization and electrochemical behaviour of novel monomers for use in sol-gel processes are described. These new compounds include a rigid tetrathiafulvalene (TTF) core substituted by one or two spacers, to which a triethoxysilyl group is covalently bonded. The synthesis is based on the preparation of various cyanoethyl-protected TTF thiolates, deprotection and alkylation of thiolate