Diorganotin(IV) bis(O,O-alkylenedithiophosphates)

Abstract

O,O-Alkylenedithiophosphates of diorganotin(IV) of the type R 2Sn[SP(S)O 2G] 2 (R = Me, Et, n-Bu, Ph; G = CH 2CMe 2CH 2, CMe 2CMe 2, CMe 2CH 2CHMe) have been synthesized by the reactions of diorganotin(IV) dichlorides with ammonium O,O-alkylenedithiophosphates or that of diorganotin(IV) oxides with O,O-alkylenedithiophosphoric acids in 1:2 molar ratio in benzene. These new complexes are white solids which are soluble in common organic solvents and are monomeric in refluxing benzene; and they have been characterized by elemental analysis and by different spectroscopic (IR, 1H, 13C, 31P and 119Sn NMR) studies, on the basis of which a six coordinated octahedral structure has been suggested in solution.