SYNTHESIS, STRUCTURE AND PROPERTIES OF A LINEAR COPPER(I) COORDINATION POLYMER WITH TETRAKIS(ETHYLTHIO)TETRATHIAFULVALENE

A new linear coordination polymer composed of copper(I) cations and te trakis(ethylthio)tetrathiafulvalene (TTC2-TTF) molecules has been synt hesized by the reaction of copper(I) perchlorate and TTC2-TTF in aceto ne under argon. The compound, [Cu(TTC2-TTF)]ClO4, was characterized by spectroscopic and X-ray crystallographic methods. It is a 1:1 metal-l igand complex in which each of the copper(I) ions is tetrahedrally coo rdinated by four sulphur atoms from the bridging TTC2-TTF molecules to form coordination polymeric chains which are separated from each othe r by the perchlorate anions in the crystal. The complex was doped with iodine to afford {[Cu(TTC2-TTF)] ClO4}I, which exhibits a conductivit y of 6 x 10(-4) S cm(-1) at 25 degrees C for a compacted pellet.