Bioinorganic Relevance of Some Cobalt(II) Complexes with Thiophene-2-glyoxal Derived Schiff Bases

Complexes of Co(II) with two new Schiff bases TEAB [2-hydroxy-4-{[2-oxo-2-(thiophen-2-yl)ethylidene]amino}benzoic acid] and TEPC [N-[2-oxo-2-(thiophen-2-yl)ethylidene]pyridine-3-carboxamide] have been synthesized and characterized with the help of elemental analysis, magnetic, mass, 1H-NMR, 13C-NMR,...

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Main Authors: Prashant Singh, Shanu Das, Rajesh Dhakarey
Format: Article
Language:English
Published: Wiley 2009-01-01
Series:E-Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2009/801345
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author Prashant Singh
Shanu Das
Rajesh Dhakarey
author_facet Prashant Singh
Shanu Das
Rajesh Dhakarey
author_sort Prashant Singh
collection DOAJ
description Complexes of Co(II) with two new Schiff bases TEAB [2-hydroxy-4-{[2-oxo-2-(thiophen-2-yl)ethylidene]amino}benzoic acid] and TEPC [N-[2-oxo-2-(thiophen-2-yl)ethylidene]pyridine-3-carboxamide] have been synthesized and characterized with the help of elemental analysis, magnetic, mass, 1H-NMR, 13C-NMR, IR and electronic spectral data. IR spectra manifest the coordination of the ligand to the metal ion through the carbonyl oxygen, azomethine nitrogen and thienyl sulphur atoms. With the help of electronic spectral data various ligand field parameters were also calculated. All these studies reveal the distorted octahedral Co(II) complexes. Synthesized compounds have also been screened against some micro organisms viz, Escherichia coli, Proteus vulgaris, Aspergillus niger and Aspergillus flavus with the help of ‘filter paper disc’ technique. It has been observed that the antimicrobial activities of metal complexes are higher than that of the free ligand.
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spelling doaj-art-0fd5a451a43c47fd95ef7e7e10bf53b02025-02-03T05:44:28ZengWileyE-Journal of Chemistry0973-49452090-98102009-01-01619910510.1155/2009/801345Bioinorganic Relevance of Some Cobalt(II) Complexes with Thiophene-2-glyoxal Derived Schiff BasesPrashant Singh0Shanu Das1Rajesh Dhakarey2Department of Chemistry, Institute of Basic Science, Dr. B.R.A. University, Agra-282005, Uttar Pradesh, IndiaDepartment of Chemistry, Institute of Basic Science, Dr. B.R.A. University, Agra-282005, Uttar Pradesh, IndiaDepartment of Chemistry, Institute of Basic Science, Dr. B.R.A. University, Agra-282005, Uttar Pradesh, IndiaComplexes of Co(II) with two new Schiff bases TEAB [2-hydroxy-4-{[2-oxo-2-(thiophen-2-yl)ethylidene]amino}benzoic acid] and TEPC [N-[2-oxo-2-(thiophen-2-yl)ethylidene]pyridine-3-carboxamide] have been synthesized and characterized with the help of elemental analysis, magnetic, mass, 1H-NMR, 13C-NMR, IR and electronic spectral data. IR spectra manifest the coordination of the ligand to the metal ion through the carbonyl oxygen, azomethine nitrogen and thienyl sulphur atoms. With the help of electronic spectral data various ligand field parameters were also calculated. All these studies reveal the distorted octahedral Co(II) complexes. Synthesized compounds have also been screened against some micro organisms viz, Escherichia coli, Proteus vulgaris, Aspergillus niger and Aspergillus flavus with the help of ‘filter paper disc’ technique. It has been observed that the antimicrobial activities of metal complexes are higher than that of the free ligand.http://dx.doi.org/10.1155/2009/801345
spellingShingle Prashant Singh
Shanu Das
Rajesh Dhakarey
Bioinorganic Relevance of Some Cobalt(II) Complexes with Thiophene-2-glyoxal Derived Schiff Bases
E-Journal of Chemistry
title Bioinorganic Relevance of Some Cobalt(II) Complexes with Thiophene-2-glyoxal Derived Schiff Bases
title_full Bioinorganic Relevance of Some Cobalt(II) Complexes with Thiophene-2-glyoxal Derived Schiff Bases
title_fullStr Bioinorganic Relevance of Some Cobalt(II) Complexes with Thiophene-2-glyoxal Derived Schiff Bases
title_full_unstemmed Bioinorganic Relevance of Some Cobalt(II) Complexes with Thiophene-2-glyoxal Derived Schiff Bases
title_short Bioinorganic Relevance of Some Cobalt(II) Complexes with Thiophene-2-glyoxal Derived Schiff Bases
title_sort bioinorganic relevance of some cobalt ii complexes with thiophene 2 glyoxal derived schiff bases
url http://dx.doi.org/10.1155/2009/801345
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AT rajeshdhakarey bioinorganicrelevanceofsomecobaltiicomplexeswiththiophene2glyoxalderivedschiffbases