Compounds containing platinum–carbon bonds. Part II. Crystal and molecular structure of cis-dichlorobis(phenyl isocyanide)platinum(II), cis-[PtCl2(CNPh)2]

Abstract

The structure crystal of the title compound has been determined from X-ray diffractometer data. The crystals are monoclinic, a= 9·936(4), b= 11·825(7), c= 13·088(4)Å, β= 101·75(3)°, Z= 4, space-group P2₁/c. The structure was solved by the heavy-atom method and refined by full-matrix least-squares to R 0·046 for 1644 independent reflexions. The arrangement of molecular units in the crystal structure is such that there is a Pt⋯Pt contact of 3·48 Å between centrosymmetrically related molecules. Co-ordination around the platinum atom is square planar. The mean Pt–C bond length [1·896(16)Å] suggests that there is appreciable metal-ligand back-donation. Pt–Cl (mean) is 2·308(5)Å.