Complexes of mercury(II) with multidentate phosphorus and arsenic ligands, and the X-ray structure of tris-(o-diphenylarsinophenyl)-arsinemercury(II) bromide

Abstract

Tris-(o-diphenylphosphinophenyl)phosphine and tris-(o-diphenylarsinophenyl)arsine from complexes of types [HgX₂(chelate)] and [Hg(chelate)](ClO₄)₂. In the former compounds only two of the donor atoms of the quadridentate ligand are bonded to the central mercury atom, which is tetrahedrally co-ordinated. The phosphorus ligand forms also the complex [HgCl(chelate)](ClO₄).