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Yogananth A.,Bharathiar University | Mansoor S.S.,C Abdul Hakeem College Autonomous
Oriental Journal of Chemistry | Year: 2015

Tripropylammonium fluorochromate (TriPAFC) in acetic acid-water medium oxidizes 4-oxo-4-phenyl butanoic acid (4-Oxo acid) in the presence of perchloric acid. The reaction is first order each in [TriPAFC], [4-Oxo acid] and [H+]. From the observed kinetic results a suitable mechanism has been proposed. © 2015, Oriental Scientific Publishing Company. All rights reserved.


Sathis Kumar D.,C Abdul Hakeem College Autonomous | Ibrahim Sheriff A.K.,C Abdul Hakeem College Autonomous
Der Pharma Chemica | Year: 2015

Two Schiff base ligands L1 and L2 were obtained by the condensation of o-phenylenediamine with pmethylbenzaldehyde and p-methoxybenzaldehyde respectively. Their complexes with Co(II) were prepared and characterized by elemental analyses, molar conductance, magnetic susceptibility, IR, UV-Vis spectra, NMR, Mass spectral studies, thermal behaviour and Powder X-ray diffraction studies have also been carried out. The IR data demonstrate the bidentate coordination of L1 and L2. The XRD data show that Co(II) complexes with L1 and L2 have the crystallite sizes of 70 and 72 nm respectively. The DNA cleavage activities of the Schiff base and its complexes were monitored by agarose gel electrophoresis method in the presence of hydrogen peroxide and the antibacterial activities of the ligand and complexes have also been carried out.


Khan M.F.,C Abdul Hakeem College Autonomous | Wesley S.G.,Scott Christian College Autonomous
Marine Pollution Bulletin | Year: 2016

Several species of tuna fish were analyzed for 210Po content in their edible muscle tissues. This study was carried out as a part of baseline data generation around a large nuclear power plant situated at Kudankulam, southeast coast of India. The concentration of 210Po in the muscle tissue ranged from 40.9±5.2 to 92.5±7.9Bq/kg of fresh fish, and the highest activity was recorded for the tuna Euthynnus affinis and the lowest for Auxis thazard. The committed effective dose to the local residents was calculated to be 62.7-141.8μSvyear-1. © 2016.


Rajiv Gandhi S.,Sri Balaji Chockalingam Engineering College | Sathis Kumar D.,C Abdul Hakeem College Autonomous | Srinivasan R.,Vellore Institute of Technology | Ibrahim Sheriff A.K.,C Abdul Hakeem College Autonomous
Asian Journal of Chemistry | Year: 2016

Transition metal complexes of Mn(II), Fe(III), Co(II), Ni(II) and Cu(II) ions have been synthesized from cinnamaldehyde and diethylenetriamine. The complexes have been characterized by elemental analysis, molar conductance, magnetic susceptibility, FT-IR, electronic spectra, 1H NMR, 13C NMR, ESR, mass spectra and thermal studies. Their ligand field parameters have also been calculated. Hydrolysis of ethyl acetate has been studied by using the complexes as homogeneous catalysts. The DNA cleavage activities of Schiff base and its metal complexes have been monitored by agarose gel electrophoresis method in the presence of hydrogen peroxide. The antimicrobial activities of ligand and its metal complexes have been examined on the fungi Candida albicans and Aspergillus niger and bacteria Staphylococcus aureus, Escherichia coli and Bacillus cereus. © 2016, Chemical Publishing Co. All rights reserved.


Kumar D.S.,C Abdul Hakeem College Autonomous | Gandhi S.R.,Sri Balaji Chockalingam Engineering College | Mageswari A.,Vellore Institute of Technology | Karthikeyan S.,Vellore Institute of Technology | Ibrahim Sheriff A.K.,C Abdul Hakeem College Autonomous
Asian Journal of Chemistry | Year: 2016

A qudridendate Schiff base ligand is synthesized by the condensation of active primary amine 2-amino-4-tert-butylphenol with β-diketone. It is found to be an N2O2 donor chelate. Quadridentate Schiff bases with an N2O2 donor have been widely studied for their ability to coordinate metal ions. Its complexes with Fe(III), Co(II), Ni(II), Cu(II) and Zn(II), have been synthesized and characterized by micro analysis, molar conductivity, magnetic susceptibility studies, UV, IR, NMR, Mass spectral studies, cyclic voltammetry, ESR spectral studies, thermal behaviour and Powder X-ray diffraction studies have also been carried out. The DNA cleavage activities of the Schiff base and its complexes were monitored by agarose gel electrophoresis method in the presence of hydrogen peroxide and antibacterial activities have also been studied.

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