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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Wiley
2008-01-01
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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. |
format | Article |
id | doaj-art-339f06999f944eaf95a932362be1e7a0 |
institution | Kabale University |
issn | 0973-4945 2090-9810 |
language | English |
publishDate | 2008-01-01 |
publisher | Wiley |
record_format | Article |
series | E-Journal of Chemistry |
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 |