Hexaphosphabenzene as Complex Ligand

Abstract

Hexaphosphabenzene, P6, long a goal of chemical synthesis, has been obtained for the first time as a complex-stabilized ligand. The triple-decker sandwich complex 1 forms air-stable, amber-colored crystals. According to an X-ray structure analysis, the aromatic P6 ring is planar and lies parallel to the two five-membered rings.