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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/4126
Title: Hydrogen-bonded mononuclear nickel(II) benzoate complexes: Synthesis and structural studies
Authors: Singh U.P.
Aggarwal V.
Kashyap S.
Upreti S.
Published in: Transition Metal Chemistry
Abstract: [TpPh,MeNi(Cl)PzPh,MeH] (1) has been synthesized by the reaction of hydrotris(3-phenyl-5-methyl-pyrazol-1-yl) borate [Tp Ph,Me], NiCl2 • 6H2O and 3-phenyl-5-methyl-pyrazole [PzPh,MeH]. The reaction of 1 with variously substituted sodium p-X-benzoates resulted in the formation of complexes of the type [TpPh,MeNi(p-X-OBz)PzPh,MeH] (X = H for 2, F for 3, Cl for 4, NO2 for 5, Me for 6, OMe for 7, OH for 8, CHO for 9 and CN for 10). Single crystal X-ray studies suggest that all these complexes have a five-coordinate metal center and the benzoate groups are monodentate in a square pyramidal geometry. The X-ray studies also reveal that the uncoordinated oxygen atom of the benzoate forms intramolecular hydrogen-bonds with the NH group of the coordinated pyrazole. The substituents present on the benzoate ring are involved in different types of intermolecular interactions and the complexes exhibit different crystal packing. Complexes 2-10 were tested for superoxide dismutase activity. © 2009 Springer Science+Business Media B.V.
Citation: Transition Metal Chemistry (2009), 34(5): 513-520
URI: https://doi.org/10.1007/s11243-009-9224-x
http://repository.iitr.ac.in/handle/123456789/4126
Issue Date: 2009
ISSN: 3404285
Author Scopus IDs: 57203181883
16444161100
26537562100
6601997551
Author Affiliations: Singh, U.P., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
Aggarwal, V., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
Kashyap, S., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
Upreti, S., Department of Chemistry and Institute for Materials Research, State University of New York, Binghamton, NY 13902-6000, United States
Funding Details: Acknowledgments This research was supported by CSIR, New Delhi. We are thankful to Saurabh Goyal for preparing some nickel compounds and Dr P. Venugopalan, University of Punjab for his help in solving one crystal structure.
Corresponding Author: Singh, U. P.; Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India; email: udaipfcy@iitr.ernet.in
Appears in Collections:Journal Publications [CY]

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