Preparation of multicomponent molecular conductors with supramolecular assembly

Supramolecular chemistry is applied to molecular conductors. In order to construct supramolecular systems, Lewis acid-base interactions between anions and iodine-containing neutral molecules have been utilized. In the presence of diiodoacetylene (DIA), p-bis(iodoethynyl)benzene (pEIB), 4,4′-bis(iodoethynyl)biphenyl (BIBP) and/or tetraiodoethylene (TIE), several cation-radical salts of bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF), ethylenedithiotetrathiafulvalene (EDT-TTF), ethylenedithiodiselena-dithiafulvalene (EDT-STF) tetramethyltetraselenafulvalene (TMTSF) are prepared by galvanostatic oxidation with such supporting electrolytes as Cl−, Br−, I−, and/or AuBr2−. Crystal structures of these salts solved by the X-ray diffraction method exhibit novel donor (BEDT-TTF or EDT-TTF) arrangements and supramolecular assemblies made of the anions and the neutral molecules.