Synthesis and Electrical Conductivities of Some Metal Complexes with the Extended Dithiolato Ligand Having a C8S8 Skeleton

Abstract
The new dithiolato ligand with an extended π-electron system, CgH4S8 2-(2-[(4,5-ethylenedithio)-1,3-dithiole-2-ylidene]-1,3-dithiole-4,5-dithiolate) was synthesized and [NBun 4][Au(C8H4S8)2] and Pt(C8H4S8)-(SEt2)2 prepared. Redox potentials of these complexes were determined. Their oxidized species and Na1.5[Ni(C8H4S8)2] exhibit electrical conductivities of 0.06-17 S cm−1 at room temperature for compacted pellets.