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IJC-A Vol.51A(12) [December 2012] >


Title: Synthesis, crystal structure, spectroscopic and superoxide dismutase activity of copper(II) and nickel(II) complex of N '-[phenyl(pyridin-2-yl)methylidene]benzohydrazone
Authors: Patel, R N
Sondhiya, Vishnu P
Patel, Dinesh K
Shukla, K K
Singh, Y
Keywords: Coordination chemistry
Schiff bases
Keto-enol tautomerism
SOD activity
Electron paramagnetic resonance
Copper
Nickel
Issue Date: 8-Dec-2012
Abstract: Two binary copper(II) and nickel(II) complexes viz., [Cu(L)(HL)]NO3.H2O (1) and [Ni(L)(HL)]NO3.H2O (2) of hydrazone Schiff base ligand (where L/HL = N'-[phenyl(pyridin-2-yl)methylidene]benzohydrazone) have been synthesized and characterized. Both the complexes (1) and (2) and ligand (HL) are structurally characterized using single crystal X-ray diffraction technique. They crystallize in monoclinic crystal system in the space group P21/n. The observed trends in spin-Hamiltonian parameters g>g>2.03 indicates a dx2-y2 ground state in complex (1). In the absorption spectra in 100% DMSO, complex (2) exhibits a d-d transition at ~900 nm, which is assigned to ν1 band (3A2g3T2g in octahedral parentage). Superoxide dismutase activities of both complexes reveal the dismutation of superoxide (O2-).
Page(s): 1695-1700
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.51A(12) [December 2012]

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