Crystal structure of bis-[1,3-bis-(di-phenyl-phosphan-yl)propane-κ(2) P,P']platinum(II) dichloride chloro-form penta-solvate.

In the title compound, [Pt{Ph2P(CH2)3PPh2}2]Cl2·5CHCl3, the Pt(II) cations, located on a centre of inversion, is coordinated by two chelating diphosphane ligands in a geometry which is close to square-planar. The chelate rings adopt a chair conformation. The Pt(II) cations are arranged in layers separated by Cl(-) anions as well as CHCl3 solvent mol-ecules.

Synthesis and characterization of the dinuclear polyhydrides [Os(2)H(7)(PPh(i)Pr(2))(4)](+) and [Os(2)H(6)(PPh(i)Pr(2))(4)].

The dinuclear osmium polyhydride [Os(2)H(7)(PPh(i)Pr(2))(4)][HC(SO(2)CF(3))(2)] (1) was synthesized by the protonation of [OsH(6)(PPh(i)Pr(2))(2)] with bis(trifluoromethylsulfonyl)methane. Treatment with amine bases was not able to deprotonate 1, but reaction with potassium hydride gave the corresponding neutral polyhydride [Os(2)H(6)(PPh(i)Pr(2))(4)] (2). Single crystal X-ray diffraction revealed that 1 and 2 both crystallize in the P2(1)/c space group and are classical polyhydrides containing similar Os(mu-H)(3)Os cores with Os-Os distances of 2.