Metal complexes with extended TTF dithiolato ligand: PTDT

Novel monoanionic, dianionic and neutral nickel, copper and palladium complexes with the extended TTF dithiolato ligand, propylenedithiotetrathiafulvalenedithiolate[ptdt2−=(S8C9H6)2−], have been synthesized. The crystal structures of these complexes show the possibility of the electronic band formation by novel 2D or 3D intermolecular contacts through ptdt ligands. The single crystal of Ni(ptdt)2 revealed an extremely high electrical conductivity(7 S cm−1) at room temperature as a neutral molecular crystal.