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Journal of Chemistry
Volume 2013, Article ID 637290, 4 pages
Research Article

Tin(IV) Complexes of Schiff Base Derived from Amino Acid: Synthesis and Characteristic Spectral Studies

Department of Chemistry, Kumaun University, S. S. J. Campus, Uttarakhand Almora 263 601, India

Received 30 April 2011; Accepted 10 November 2011

Academic Editor: Mohamed Farook

Copyright © 2013 Robina Aman and Garima Matela. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A new series of tin(IV) complexes of general formula [Sn(L-1)(Opri)2] (1), [Sn(HL-1)2(Opri)2] (2), [Sn(L-2)(Opri)2] (3), [Sn(HL-2)2(Opri)2] (4), (L is dianion of Schiff bases derived from the condensation of 2-hydroxy-1-naphthaldehyde with glycine (L-1) and Lβ-alanine (L-2)) was synthesized by reaction of tin(IV) tetraisopropoxide with the ligands, in appropriate stoichiometric ratios (1 : 1 and 1 : 2). This would result in the replacement of the isopropoxide group from the tin(IV) tetraisopropoxide and hydrogen(s) from ligand with the azeotropical removal of isopropanol. An attempt has been made to prove the structure of the resulting complexes on the basis of elemental analysis, IR, 1H nuclear magnetic resonance. The binding site of the ligand was identified by IR spectroscopic measurement. In these complexes, the tin(IV) centre is bonded to oxygen atom of the hydroxyl or carboxylate group. The spectra data suggest that the carboxylate group is coordinated to tin(IV) centre in monodentate manner.