Studies on inorganic tin diphenyldithiophosphinates. Crystal and molecular structure of cis-dichlorobis(diphenyldithiophosphinato)tin(IV)

Article abstract of DOI:10.1016/0277-5387(96)00100-3

The reactions between SnCl₂ and [Ph₂P(S)S]₂, Ph₂P(S)SH and Ph₂PS₂NH₄, respectively, were investigated by multinuclear (¹H, ¹³C, ³¹P, ¹¹⁹Sn) NMR spectroscopy and the results are discussed. The previously reported cis-dichlorobis(diphenyldithiophosphinato)tin(IV) was isolated as Cl₂Sn(S₂PPh₂)₂·0.5(CH ₃)₂CO and its crystal structure was determined by X-ray diffractometry. The dithiophosphinato groups are isobidentate coordinated [P(1) - S(1) 2.044(2), P(1) - S(2) 2.021(2) A] through both sulfur atoms [Sn - S(1) 2.530(1), Sn - S(2) 2.596(2) A]. The chlorine atoms are in cis positions [Cl - Sn - Cl(a) 92.8(1)°] in a distorted octahedral tin complex. Copyright