Synthesis and Spectroscopic Characterization of New Organolead(Iv) Complexes Containing Organophosphorus Ligands

Abstract

Organolead(IV) derivatives of organophosphorus ligands, RnPb[(OPPh2)(SPPh2)N]4-n (R = Ph; n = 2, 3) and Me3Pb[S2PR2] (X = S, O; R = Me, Et, Ph), were prepared by reacting the corresponding organolead(IV) chloride with the sodium, potassium or ammonium salt of the appropriate organophosphoric acid. The title compounds were investigated by IR and multinuclear (1H, 13C, 31P) NMR spectroscopy, and possible structures are proposed. All dithiophosphinato complexes exhibited low stability and underwent decomposition on standing. The decomposition process was monitored by using 1H and 31P NMR spectroscopy, and a decomposition pathway is proposed.