Synthesis and spectroscopic studies of inorganic tin derivatives of amino-acids and their esters

Abstract

The nature of the product obtained on reacting SnCl₂ with sulphur-containing amino-acids is shown to depend on the reaction conditions. Eleven new inorganic tin(II) or tin(IV) derivatives of sulphur-containing amino-acids and their esters are reported. Three tin(II) complexes of amino-acids that have exclusively Sn–O bonds have also been prepared. The bonding in these compounds is discussed in terms of their i.r. and ^l19Sn Mössbauer spectroscopic data. Infrared spectra suggest the presence of co-ordination to Sn by the amino-N atoms.