Spectroscopic characterization of some new coordination compounds of titanium(IV) with Schiff bases of amino acids

Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India

E-mail : saritavarshney@rediffmail.com

Manuscript received online 03 August 2014, revised 28 December 2014, accepted 08 January 2015

Some new coordination compounds of titanium(IV) are synthesized by the reaction of titanium isopropoxide with ligand in 1 : 1 and 1 : 2 molar ratios using dry benzene as reaction medium. Ligands used in these studies are the Schiff bases prepared by the condensation of ketones (1-acetyl-2-naphthol and 2-acetyl-1-naphthol) with amino acids (glycine, leucine, β-alanine and valine) in ethanol. An attempt has been made to probe the structures, bonding pattern and geometries of their coordination compounds by the elemental analysis, molecular weight determination, conductance measurement and IR, NMR (¹H, ¹³C) spectral evidences. Ligands and their coordination compounds have been screened for their antibacterial and antifungal activities. Their comparative results are quite encouraging.