Novel Phthalocyanine Conductor Containing Two-dimensional Pc Stacks, [PXX]2[Co(Pc)(CN) 2] (PXX = peri-Xanthenoxanthene, Co(Pc)(CN)2 = Dicyano(phthalocyaninato)cobalt(III))

A novel phthalocyanine conductor containing 2-D (pi)–(pi) stacks of the partially oxidized Co(Pc)(CN)2 units has been obtained by the electrochemical oxidation method with PXX. The crystal is highly conductive (>10^3 S cm^-1) at all the temperatures measured (5 K < T < 300 K). Though the metallic character becomes clearer compared with the single chain or ladder chain conductors, the 2-D sheet has been found to be still anisotropic.