Trans influence in platinum(II) complexes. Phenylation of Pt(II) dialkylsulfide complexes by BPh-4 and SnPh3H. Crystal structures of two polymorphs of trans-chlorobis(dimethylsulfide)(phenyl)platinum(II)

Article abstract of DOI:10.1016/0022-328X(95)06103-4

Two methods of phenylation of platinum(II) complexes are described, one by heating [PtCl(dms)₃](BPh₄) and another starting from triphenyltin hydride and [PtCl₂(dms)₂], dms = dimethylsulfide. Two different polymorphs of trans-[PtPhCl(dms)₂] are obtained, one monoclinic and one triclinic. The monoclinic form contains two crystallographically different complexes. The main difference between the molecular geometries in the polymorphs is the orientation of the dms ligands. Distances found are Pt-Cl, 2.403-2.420; Pt-S, 2.279-2.298 and Pt-C, 1.99-2.00 A. A comparison of some Pt-Cl bond distances obtained from the literature reveals that the trans influence increases in the following order: Cl < S ≤ Sn, P < C, H < Si.