Cobalt(II), Ni(II), Cu(II), Zn(II), CD(II), Hg(II), U0 2(VI) and th(IV) complexes from ONNN Schiff base ligand

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Rama Krishna Reddy, K. and Suneetha, P. and Karigar, C.S. and Manjunath, N.H. and Mahendra, K.N. (2008) Cobalt(II), Ni(II), Cu(II), Zn(II), CD(II), Hg(II), U0 2(VI) and th(IV) complexes from ONNN Schiff base ligand. Journal of the Chilean Chemical Society, 53 (4). pp. 1653-1657. ISSN 0717-9707

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Official URL: https://doi.org/10.4067/S0717-97072008000400003

Abstract

A new tetradentate Schiff base, 3-(Z)-2-piperazin-l-yl-ethylimino-l, 3-dihydro indol-2-one was synthesized by the condensation of isatin(Indole-2,3-dione) with l-(2-aminoethyl)piperazine(AEP). Its complexes with Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg(II), U0 2(VI) and Th(IV) have been synthesized and characterized by microanalysis, conductivity, UV-visible, FT-IR, 'H NMR, TGA and magnetic susceptibility measurements. The complexes have 1:1 metal to ligand stoichiometry. The complexes of Cu(II) and Th(IV) are 1:1 electrolytes whereas the complexes of Co(II), Ni(II), Zn(II), Cd(II), Hg(II) and U0 2(VI) are nonelectrolytes. ITie spectral data revealed that the ligand acts as a neutral tetradentate, coordinating through the azomethine nitrogen, two piperazine nitrogen atoms and carbonyl oxygen. Octahedral geometry for Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) complexes and a coordination number of 8 for U0 2(VI) and Th(IV) complexes are proposed. The ligand and its metal complexes were screened for antibacterial activity against Bacillus subtilis, Staphylococcus aureus (S. aureus), Escherichia Coli (E. Coli) and Pseudomonas aeruginosa and the complexes are more potent bactericides than the ligand. The anthelmentic activity of the ligand and its complexes against earthworms was also tested. © 2009 Sociedad Chilena de Química.

Item Type: Article
Additional Information: cited By 11
Subjects: Faculty of Science > Environmental and Biological Sciences > Biochemistry
Faculty of Science > Pure Sciences > Chemistry
Divisions: Jnana Bharathi / Central College Campus > Department of Chemistry
Depositing User: Mr. Kirana Kumar D
Date Deposited: 27 Feb 2016 07:56
Last Modified: 27 Feb 2016 07:56
URI: http://eprints-bangaloreuniversity.in/id/eprint/1683

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