Abstract
Abstract The mixed ligand complexes of the type R2′Sn[R″COCHCOR″] [S2P(OR‴)2] and [(R‴O)2S2P] R2′SnOSn R2′ [R″COCHCOR″] have been prepared by the reaction of diorganotin oxide (R′ = Bu, Ph) or chloride (R′ = Me) with β-diketones and dialkyl (or aryl) dithiophosphoric acids in 1:1:1 and 2:1:1 molar ratios is refluxing benzene. The products formed are monomeric, non volatile, yellow colored viscous liquids or sticky solids, soluble is common organic solvents and exhibit high sensitivity towards atmospheric moisture. These complexes have been characterized by elemental analyses, molecular weight measurements, IR and NMR (1H, 31p and 119Sn) spectral data. On the basis of 119Sn NMR studies, it was postulated that there might be disproportionation which led to the formation of mixture with fast exchange between Sn—S and Sn—O linkages.
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