Synthesis and Characterization of Tin(IV) Complexes with O-and N-Donor Ligands

Abstract

The Schiff bases have been prepared by reacting ninhydrin and
various substituted amines. The Sn(IV) complexes have been prepared
by reacting tin tetrachloride with these Schiff bases in an alcoholic
medium. All these complexes are violet to brown in colour and amorphous
in nature. The complexes are non-electrolytes in DMF. Elemental
analysis confirms the stoichiometry of the type L₂SnCI₄. The IR spectral
observation favours the coordination of C=O to the Sn(IV) ion through
oxygen. Sn(IV) exhibits coordination number of six in these complexes.