R. N. Patel, K. Shukla, Anurag Singh
Sep 20, 2010
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Influential Citations
23
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Journal
Journal of Coordination Chemistry
Abstract
Three nickel(II) complexes, [Ni(L1)2] ⋅ 3H2O (1), [Ni(L2)2](ClO4)2 (2), and [Ni(L3)(bipy)](ClO4)2 (3), where L1 = N′-[phenyl(pyridin-2-yl)methylidene]furan-2-carbohydrazide, L2 = 2,6-bis[N,N′-(4-methoxyphenyl)ethanimidoyl]pyridine, and L3 = N-(methoxy-phenyl-pyridin-2-yl-methyl)-N-(phenyl-pyridin-2-yl-methylene)-ethane-1,2-diamine, have been synthesized and characterized by physico-chemical and spectroscopic methods. The solid-state structures of 1–3 were determined by single crystal X-ray crystallography, which revealed distorted octahedral geometry. In solid-state structure, 3 is self-assembled via intermolecular π ··· π stacking and intramolecular CH(methyl) ··· π(phenyl) non-covalent interactions. Infrared spectra, ligand-field spectra, and magnetic susceptibility measurements agree with the observed crystal structures. These complexes have also been revealed to catalyze effectively the dismutation of superoxide ( ) in alkaline dimethyl superoxide-nitro blue tetrazolium assay.