Phenyllead(IV) diorganophosphinodithioates, PhnPb(S2PR2)4−n. Synthesis, spectroscopic characterization, and NMR study of the redistribution/decomposition of diphenyllead(IV) derivatives

✍ Scribed by Cristian Silvestru; Anca Silvestru; Ionel Haiduc; Rubén Gaviño Ramírez; Raymundo Cea-Olivares

• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 745 KB
• Volume: 5
• Category: Article
• ISSN: 1042-7163
• DOI: 10.1002/hc.520050403

✦ Synopsis

Tri-and diphenyllead(IV) diorganophosphinodithioates, Ph,Pb(S2PRZ)4-, (n = 2 and 3; R = Me, Et, Ph) were prepared by reacting the corresponding organolead(IV) chloride with the sodium or ammonium salt of the phosphinodithioic acid. The title compounds were investigated by infrared, ' H and 3'P NMR, and mass spectroscopy, and possible structures were prqposed. The diphenyllead(IV) phosphinodithioates, Ph2Pb(S2PR2)2, undergo decomposition on ztanding or on moderate heating, the least stable being the ethyl derivative. The process was monitored by ming ' H and "P NMR spectroscopy, and a reaction pathway leading to Ph3PbS2PRZ, Pb(SZPRJ2, and R,P(S)SPh was established.