88548-38-3Relevant academic research and scientific papers
S-alkyl (diorganothiophosphinoyl)dithioformate, N-phenyl(diorganophosphino)thioformamide, and N-phenyl(diorganothiophosphinoyl)thioformamide complexes of platinum. Preparation and hydrogen-1, phosphorus-31, and platinum-195 NMR studies
Carr, Stuart W.,Colton, Ray,Dakternieks, Dainis
, p. 720 - 726 (2008/10/08)
The reactions between (PPh3)2PtC2H4 and R2P(S)C(S)SR′ (R = Ph, cyclohexyl (Cy); R′ = Me, CH2Ph) have been studied and the products characterized by elemental analysis and by infrared and multinuclear magnetic resonance techniques. All spectroscopic data are consistent with the simple replacement of ethylene and coordination of the ligands in a η2 mode through the CS portion of the molecule. The initial products of the reactions between (PPh3)2PtC2H4 and R2PC(S)NPhH and R2P(S)C(S)NPhH (R = Ph, Cy) are also η2-CS-coordinated complexes. With the exception of the complex derived from Ph2P(S)C(S)NPhH, which is stable in the η2-CS-coordinated form, these compounds rearrange to give the platinum(II) hydrides (PPh3)Pt(H)(R2PC(S)NPh) and (PPh3)Pt(H)(Cy2P(S)C(S)NPh). Intermediates were observed in these internal oxidative-addition reactions, which are believed to involve P,S and S,S coordination of the ligands. The overall rates of these reactions decrease with decreasing basicity of the phosphorus portion of the ligands.
