Synthesis, spectral characterization and biological activity of benzofuran Schiff bases with Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) complexes

Shivakumar, K and Shashidhar, * and Reddy, Vithal P and Halli, MB (2008) Synthesis, spectral characterization and biological activity of benzofuran Schiff bases with Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) complexes. In: Journal of Coordination Chemistry, 61 (14). pp. 2274-2287.

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Abstract

New Schiff bases have been synthesized from benzofuran-2-carbohydrazide and benzaldehyde,[BPMC] or 3,4-dimethoxybenzaldehyde, [BDMeOPMC]; complexes of the type $MLX_2$,where M=Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II), L=BPMC or BDMeOPMC and X = Cl, have been prepared. Structures have been elucidated on the basis of elemental analysis, conductance measurements, magnetic properties, spectral studies i.e., $^1H$ NMR, electronic, ESR and IR studies show that the Schiff bases are bidentate through the azomethine nitrogen and oxygen of the carbonyl. We propose tentative structures for all of these complexes. The antifungal and antibacterial activities of the ligands and their metal complexes have been screened against fungi Aspergillus niger and Aspergillus fumigatus and against bacteria Escherichia coli and S. aurious.

Item Type:	Journal Article
Publication:	Journal of Coordination Chemistry
Publisher:	Taylor and Francis
Additional Information:	Copyright of this article belongs to Taylor and Francis.
Keywords:	Benzofuran Schiff bases;Metal complexes;Spectral studies;Biological activity.
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	01 Aug 2008
Last Modified:	19 Sep 2010 04:48
URI:	http://eprints.iisc.ac.in/id/eprint/15353

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