Syntheses and Characterization of Some Tetradentate Schiff-Base Complexes and Their Heteroleptic Analogues

VO(IV), Ni(II) and Cu(II) complexes of the asymmetric Schiff base [(HOC6H3(OCH3)C(C6H5):N(CH2CH2)N:C(CH3)CH:C(C6H5)OH)], and their heteroleptic analogues with triphenyl phosphine and 2,2’-bipyridine have been synthesized and characterized by elemental analyses, conductance, magnetic, infrared and e...

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Main Author: A. A. Osowole
Format: Article
Language:English
Published: Wiley 2008-01-01
Series:E-Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2008/654054
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author A. A. Osowole
author_facet A. A. Osowole
author_sort A. A. Osowole
collection DOAJ
description VO(IV), Ni(II) and Cu(II) complexes of the asymmetric Schiff base [(HOC6H3(OCH3)C(C6H5):N(CH2CH2)N:C(CH3)CH:C(C6H5)OH)], and their heteroleptic analogues with triphenyl phosphine and 2,2’-bipyridine have been synthesized and characterized by elemental analyses, conductance, magnetic, infrared and electronic spectral measurements. The ligand is tetradentate coordinating via the imine N and enolic O atoms. The Ni(II) and Cu(II) complexes adopt a four coordinate square planar geometry, the VO(IV) complex is five coordinate square-pyramidal and the heteroleptic complexes are 6-coordinate, octahedral. The assignment of geometry is collaborated by magnetic moments and electronic spectra measurements. The compounds are non-electrolyte in nitromethane and are magnetically dilute.
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institution Kabale University
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spelling doaj-art-339f06999f944eaf95a932362be1e7a02025-02-03T05:48:16ZengWileyE-Journal of Chemistry0973-49452090-98102008-01-015113013510.1155/2008/654054Syntheses and Characterization of Some Tetradentate Schiff-Base Complexes and Their Heteroleptic AnaloguesA. A. Osowole0Department of Chemistry, University of Ibadan, Ibadan, NigeriaVO(IV), Ni(II) and Cu(II) complexes of the asymmetric Schiff base [(HOC6H3(OCH3)C(C6H5):N(CH2CH2)N:C(CH3)CH:C(C6H5)OH)], and their heteroleptic analogues with triphenyl phosphine and 2,2’-bipyridine have been synthesized and characterized by elemental analyses, conductance, magnetic, infrared and electronic spectral measurements. The ligand is tetradentate coordinating via the imine N and enolic O atoms. The Ni(II) and Cu(II) complexes adopt a four coordinate square planar geometry, the VO(IV) complex is five coordinate square-pyramidal and the heteroleptic complexes are 6-coordinate, octahedral. The assignment of geometry is collaborated by magnetic moments and electronic spectra measurements. The compounds are non-electrolyte in nitromethane and are magnetically dilute.http://dx.doi.org/10.1155/2008/654054
spellingShingle A. A. Osowole
Syntheses and Characterization of Some Tetradentate Schiff-Base Complexes and Their Heteroleptic Analogues
E-Journal of Chemistry
title Syntheses and Characterization of Some Tetradentate Schiff-Base Complexes and Their Heteroleptic Analogues
title_full Syntheses and Characterization of Some Tetradentate Schiff-Base Complexes and Their Heteroleptic Analogues
title_fullStr Syntheses and Characterization of Some Tetradentate Schiff-Base Complexes and Their Heteroleptic Analogues
title_full_unstemmed Syntheses and Characterization of Some Tetradentate Schiff-Base Complexes and Their Heteroleptic Analogues
title_short Syntheses and Characterization of Some Tetradentate Schiff-Base Complexes and Their Heteroleptic Analogues
title_sort syntheses and characterization of some tetradentate schiff base complexes and their heteroleptic analogues
url http://dx.doi.org/10.1155/2008/654054
work_keys_str_mv AT aaosowole synthesesandcharacterizationofsometetradentateschiffbasecomplexesandtheirheterolepticanalogues