Four- and five-coordinate platinum in tris[chlorotris(dimethyl sulfide) platinum(II)] pentakis(trichlorostannyl)platinate(II) from an SnCl2 insertion into a Pt–Cl bond

cis, trans-Dichlorobis(dimethyl sulfide)platinum(II) reacts with two molar equivalents of stannous chloride dihydrate to form tris[chlorotris(dimethyl sulfide)platinum(II)] pentakis (trichlorostannyl)platinate(II), [PtCl(SMe2)3]3[Pt(SnCl3)5]. The platinum atom in the cation shows square planar coordination whereas that in anion shows trigonal bipyramidal coordination. In solution, the compound dissociates into [PtCl(SMe2)3][SnCl3] and [PtCl(SMe2)3]2[SnCl4]. q 2004 Elsevier B.V. All rights reserved.