Synthesis and Characterization of Monoorganotin(IV) Diorganodithiophosphate Derivatives

Abstract

Monoorganotin(IV) diorganodithiophosphate derivatives, RSn[SP(S)(OR′)₂]_n Cl_3-n (R = CH₃, C₂H₅, n-C₄H₉ or C₆H₅, R′ = C₂H₅, n-C₃H₇, i-C₃H₇ or C₆H₅ and n = 1–3), have been synthesised by the reactions of monoorganotin(IV) chlorides with sodium diorganodithiophosphates. An alternative route for the synthesis of the tris-derivatives (n = 3) has been shown to be the interaction between monoorganotin(IV) oxides and diorganodithiophosphoric acids in benzene. The new products have been characterized by elemental analysis, conductivity, refractive index, molecular weight and dipole moment measurements as well as by their electronic, infrared and nuclear magnetic resonance (¹H and ³¹P) spectra.