Synthesis, structure and properties of new dithiolene complexes containing a 1,3,5-trithiepin ring

Abstract

Mono-tetrabutylammonium salts of nickel, copper, and gold 1,3,5-trithiepin-6,7-dithiolato (ttdt) complexes1a–c have been prepared and the structures of 1b and 1c determined by X-ray crystallography. Cyclic voltammograms of these complexes showed oxidation peaks in the range 0.23–0.46 V (vs. SCE). Partially oxidised salts of these complexes were obtained either as amorphous or polycrystalline solids. The electrical conduction properties are reported. The crystal structure of (TTF)[Au(ttdt)₂ ] obtained from the reaction of 1c and TTF₃(BF₄)₂ was determined by X-ray crystallography.