Synthesis and spectroscopic [IR, solid-state NMR (1H, 13C & 31P)] studies of 1,3-dithia-2-stannacyclopentane diorganodithiophosphates

Abstract

1,3-dithia-2-stannacyclopentane derivatives of diorganodithiophosphates of the types SCH2CH2SSn[S2P(OR)2]Cl (I) and SCH2CH2SSn[S2P(OR)2] 2 (II) [where R = Et, n-Pr, i-Pr, n-Bu, i-Bu and Ph] have been synthesized (in 78-95 % yields) by the reaction of 2,2-dichloro-1,3-dithia-2- stannacyclopentane and sodium/ammonium salts of diorganodithiophosphates in 1:1 and 1:2 molar ratios respectively, in anhydrous benzene. All these newly synthesized complexes are insoluble in common organic solvents and are difficult to be analysed by conventional techniques. We have applied elemental analyses, IR and solid-state NMR (1H, 13C and 31P) techniques to obtain structural information of these complexes.