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Synthesis and crystal structure characterization of iron(II), cobalt(II) and nickel(II) complexes with 1,3-bis(2-pyridylmethylthio)propane

Patra, A., Sarkar, S., Drew, M. G. B., Zangrando, E. and Chattopadhyay, P. (2009) Synthesis and crystal structure characterization of iron(II), cobalt(II) and nickel(II) complexes with 1,3-bis(2-pyridylmethylthio)propane. Polyhedron, 28 (7). pp. 1261-1264. ISSN 0277-5387

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To link to this item DOI: 10.1016/j.poly.2009.02.039

Abstract/Summary

Three new mononuclear complexes of nitrogen-sulfur donor sets, formulated as (Fe-II(L)Cl-2] (1), [Co-II(L)Cl-2] (2) and [Ni-II(L)Cl-2] (3) where L = 1,3-bis(2-pyridylmethylthio)propane, were synthesized and isolated in their pure form. All the complexes were characterized by physicochemical and spectroscopic methods. The solid state structures of complexes I and 3 have been established by single crystal X-ray crystallography. The structural analysis evidences isomorphous crystals with the metal ion in a distorted octahedral geometry that comprises NSSN ligand donors with trans located pyridine rings and chlorides in cis positions. In dimethylformamide solution, the complexes were found to exhibit Fe-II/Fe-III, co(II)/co(III) and Ni-II/Ni-III quasi-reversible redox couples in cyclic voltammograms with E-1/2 values (versus Ag/AgCl at 298 K) of +0.295, +0.795 and +0.745 V for 1, 2 and 3, respectively. (C) 2009 Elsevier Ltd. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:11554
Uncontrolled Keywords:Iron(II), Cobalt(II), Nickel(II) complex, Nitrogen-sulfur ligands , COPPER(II) COMPLEXES, CARBOXAMIDO NITROGEN, NITRILE HYDRATASE, METAL SITES, LIGAND, COORDINATION, ACTIVATION, CONVERSION, MOLECULES, CHEMISTRY

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