Bimetallamacrocycles involving tetrakis(diphenylphosphinoalkylthio)tetrathiafulvalene

Two novel tetrathiafulvalene (TTF) ligands, substituted by four diphenylphosphinoalkylthio groups, have been synthesized and characterized. Their redox properties, determined by cyclic voltammetry, have been compared with their precursors and discussed. The ability of these redox active ligands to react with two equivalent of cis-W(CO)₄(C₅H₁₁N)₂ is presented. X-ray crystal structure of a bis 13-metallamacrocycle is reported together with its redox behaviour.