Investigations on some tridentate Schiff base metal complexes

Department of Chemistry, Manonmaniam Sundaranar University, Tirunelveli-627 012, Tamilnadu, India
E-mail : msnairchem @rediffmail.com
Manuscript received 16 October 2006, revised 6 February 2007, accepted 7 February 2007

The Schiff base complex species formed in cobalt(II), nickel(II), copper(II) and zinc(II)-vanillidene-β-alanine systems were synthesized and characterized. The analytical data show the composition of the metal complex to be MLX, where L is the Schiff base ligand and X is a water molecule. The results demonstrate the tridentate binding of the Schitf base ligand and cobalt( II) and nickel(II) complexes have tetrahedral geometries, while the coppcr(II) complex has square planar geometry. The ligand and the complexes were moderately active against gram-positive, gram-negative bacteria and fungi species.