70341-28-5Relevant academic research and scientific papers
Reactions of elemental sulfur with tetrakis(triphenylphosphine)platinium(0). Formation of a comples containing very nucleophilic bridging sulfido ligands
Gukathasan, Ravi R.,Morris, Robert H.,Walker, Alan
, p. 2490 - 2492 (2007/10/02)
The reactions of Pt(PPh3)4 with elemental sulfur in ratios S/Pt = 3, 4, 5, and 6 give a mixture of compounds identified as 2 and PtS4(PPh3)2 is not detected.The dimeric complex also forms on reaction of PtS4(PPh3)2 with 3 mol of Pt(C2H4)(PPh3)2.It is alkylated at one bridging sulfido ligand by CH2Cl2 and CHCl3 to give cations +, R= CH2Cl and CHCl2, respectively, which are characterized as their hexafluorophosphate salts.The cations give extreme AA'BB'X (31)Pmr spectra since their cis-phosphorus atoms (A,B) have very similar chemical shifts but different coupling constants to (195)Pt(X); spectral features are broadened by thiolate inversion processes.Reactions of bridging sulfido ligands with other electrophiles are discussed.
