Table of Contents
International Journal of Inorganic Chemistry
Volume 2013, Article ID 614628, 10 pages
http://dx.doi.org/10.1155/2013/614628
Research Article

Synthesis, Characterization, and Antibacterial Activity of Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Hg(II) Complexes of Schiff's Base Type Ligands Containing Benzofuran Moiety

1Department of Chemistry, S. D. M. College of Engineering and Technology, Dharwad 580002, India
2Department of Chemistry, Sri Krishna Institute of Technology, Bangalore 560 090, India
3Department of Chemistry, M. S. Ramaiah Institute of Technology, Bangalore 560 054, India
4Department of Chemistry, Inje University, Kimhae 621749, Republic of Korea
5Department of Chemistry, J. S. S. Academy of Technical Education, Bangalore 560060, India

Received 17 December 2012; Revised 10 February 2013; Accepted 26 February 2013

Academic Editor: Alfonso Castiñeiras

Copyright © 2013 N. Shashidhar Reddy et al. 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.

Abstract

Six new complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Hg(II) with substituted benzofuran derivatives have been synthesized and characterized by elemental analysis, magnetic moments, conductance measurements, spectral characterization, and so forth. Elemental data coincide with the general formula , where L = (E)-7-Methoxy-N1-(2,4,5-trimethoxy benzylidene) benzofuran-2-carbohydrazide (L1) or (E)-N1-(2,6-dichloro benzylidene)-7-methoxy benzofuran-2-carbohydrazide (L2), of the complexes. The ligands coordinate to the metal ions through the oxygen of the carbonyl group and the nitrogen of the hydrazine group. Electronic spectral data of the complexes suggests the probable geometry is octahedral in nature. All the complexes and ligands were screened for their antibacterial activity. Among them, Co, Ni, and Cu complexes of L2 showed good activity against all microbes.