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dc.description.abstractA novel binucleating Schiff base ligands have been prepared by the condensation between 3,3 diaminobenzidine with phthalaldehyde monoxime, 2, 3 butanedione monoxime and O-hydroxyacetophenone. The Schiff base ligands and metal complexes were characterized by elemental analysis, UV, IR, 1H NMR, 13C NMR, conductivity measurements, cyclic voltammetry, thermal studies, EPR and magnetic studies. In molar conductance studies, most of the complexes showed non-electrolytic in nature and only few of the complexes were electrolytic in nature. The binucleating ligand can coordinate with two metal ions to form binuclear complexes and the complexes exhibit octahedral and square planar arrangements. In electrochemical studies, the resulting cyclic voltammograms indicates that the metal(II) complexes followed quasi-reversible reactions with one electron transfer. The TGA curves show that the decomposition takes place in three steps for metal complexes. The synthesized ligand, in comparison to their metal complexes also were screened for its antimicrobial activity against Staphylococcus aureus and Streptococcus pyogenes as Gram-positive bacteria and Escherichia coli and Klebsiella pneumoniae as Gram-negative and the fungi Fusarium oxysporum, Aspergillus fumigatus and Aspergillus flavus. In antimicrobial activity, all complexes are showed good antimicrobial activity than ligands. The DNA binding properties of copper(II) metal complexes have been investigated by electronic absorption spectroscopy, viscosity measurements and cyclic voltammetry. Results suggest that the copper(II) complexes bind to DNA via an intercalation binding mode. The nucleolytic cleavage activities of the ligands and their complexes were assayed by using gel electrophoresis in the presence of H2O2. Metal(II) binuclear complexes are showed significant cleavages.en_US
dc.titleSynthesis, characterization, redox, dna binding, cleavage and anti-microbial activities of novel schiff base binuclear metal complexesen_US
dc.creator.researcherJayaseelan, Pen_US
dc.subject.keywordNovel Schen_US
dc.subject.keywordDna Binding Clearageen_US
dc.subject.keywordAnti - Microbial Activitiesen_US
dc.description.notePublication p.248-251en_US
dc.contributor.guideRajavel, Ren_US
dc.publisher.universityPeriyar Universityen_US
dc.publisher.institutionDepartment of Chemistryen_US
Appears in Departments:Department of Chemistry

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05_abstract.pdf190.89 kBAdobe PDFView/Open
06_dedications.pdf125.6 kBAdobe PDFView/Open
07_contents.pdf159.55 kBAdobe PDFView/Open
08_chapter 1.pdf1.11 MBAdobe PDFView/Open
09_chapter 2.pdf1.1 MBAdobe PDFView/Open
10_chapter 3.pdf1.92 MBAdobe PDFView/Open
11_chapter 4.pdf2 MBAdobe PDFView/Open
12_chapter 5.pdf1.52 MBAdobe PDFView/Open
13_figures.pdf1.14 MBAdobe PDFView/Open

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