Synthesis, characterization and superoxide dismutase activity of some octahedral nickel(II) complexes

Four new octahedral Ni(II) complexes were synthesized and characterized. The crystal structures of [Ni(tren)(phen)](ClO 4) 2 ( 1) and [Ni(SAA)(PMDT)] · 2H 2O ( 3) were determined by single crystal X-ray diffraction methods. Superoxide dismutase (SOD) activity of these complexes has also been studied...

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Bibliographic Details
Published in:Polyhedron 2007-03, Vol.26 (4), p.757-762
Main Authors: Patel, R.N., Singh, Nripendra, Gundla, V.L.N.
Format: Article
Language:English
Subjects:
Magnetic susceptibility
Mixed ligand nickel(II) complexes
Single crystal X-ray analysis
Superoxide dismutase activity
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Summary:Four new octahedral Ni(II) complexes were synthesized and characterized. The crystal structures of [Ni(tren)(phen)](ClO 4) 2 ( 1) and [Ni(SAA)(PMDT)] · 2H 2O ( 3) were determined by single crystal X-ray diffraction methods. Superoxide dismutase (SOD) activity of these complexes has also been studied. Four new mixed ligand nickel(II) complexes viz., [Ni(tren)(phen)](ClO 4) 2 ( 1), [Ni(tren)(bipy)](ClO 4) 2 ( 2), [Ni(SAA)(PMDT)] · 2H 2O ( 3) and [Ni(SAA)(TPTZ)] ( 4) (tren = tris(2-aminoethylamine), phen = 1,10-phenanthroline, bipy = 2,2′-bipyridine, SAA = salicylidene anthranilic acid, PMDT = N, N, N′, N″, N″-pentamethyldiethylenetriamine, TPTZ = 2,4,6-tri(2-pyridyl)-1,3,5-triazine) have been synthesized and characterized by means of elemental analysis, spectroscopic, magnetic susceptibility and cyclic voltammetric measurements. Single crystal X-ray analysis of [Ni(tren)(phen)](ClO 4) 2 ( 1) and [Ni(SAA)(PMDT)] · 2H 2O ( 3) has revealed the presence of a distorted octahedral geometry. Superoxide dismutase activity of these complexes has also been measured.
ISSN:0277-5387
DOI:10.1016/j.poly.2006.09.041