Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy p. 867 - 882 (2014)
Update date:2022-08-29
Topics:
Raman, Natarajan
Pravin, Narayanaperumal
The syntheses, structures and spectroscopic properties of Cu(II) and Zn(II) complexes having Knoevenagel condensate β-diketimine Schiff base ligands have been investigated in this paper. Characterization of these complexes was carried out using FTIR, NMR, UV-Vis, elemental analysis, mass and EPR techniques. Absorption titration, electrochemical analyses and viscosity measurements have also been carried out to determine the mode of binding. The shift in ΔEp, E1/2 and Ipc values explores the interaction of CT DNA with the above metal complexes. Interaction of ligands and their complexes with DNA revealed an intercalative mode of binding between them. Antimicrobial studies showed an effective antimicrobial activity of the metal ions after coordination with the ligands. The antioxidant properties of the Schiff base ligands and their complexes were evaluated in a series of in vitro tests by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and H 2O2 free radical scavengers. In vivo and in vitro antitumor functions of the complexes against Ehrlich ascites carcinoma tumor model have also been investigated. All the results support that β-diketone derived Knoevenagel condensate Schiff base complexes may act as novel antitumor drugs and suggest that their potent cell life inhibition may contribute to their anti-cancer efficacy.
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