Synthesis and Characterization of O-Alkyl, O-Cycloalkyl and O-Aryl Trithiophosphato Derivatives of Trimethyl Tin(IV) Chloride and Tributyl Tin(IV) Chloride

Abstract

Trimethyltin(IV)trithiophosphates [(RO)P(S)S₂][Sn(Me)₃]₂ and tributyl tin(IV)trithiophosphates [(RO)P(S)S₂][Sn(Bu)₃]₂ (R=CH₃, –C₂H₅, –C₃H₇, –C₃H₇ ^iso –C₄Hⁿ ₉, –C₄H₉ ^iso, –C₄H₅ ^scc, –C₅H₁₁ ^iso C₆H₁₁, –C₆H₅) were prepared in methanolic solution of R₃SnCl and dipotassium salt of trithiophosphates in 2:1 molar ratio. These newly synthesised derivatives have been characterized by elemental analysis, molecular weight measurements, IR, ¹³C, ³¹P, and ¹¹⁹Sn,NMR spectral studies. Coordination number of four suggested for tin(IV) in these derivatives.

Keywords:

• Phosphorotrithioate
• tin(IV)

We are thankful to the CDRI, Lucknow, NCL Pune, RSIC Banglore and USIC Delhi University for elemental and spectral analysis of the newly synthesized compounds.