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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/11057

Title: Monooxovanadium(V) mixed ligand complexes of Schiff bases and catecholates: Synthesis, spectral and electrochemical characterization
Authors: ASGEDOM, G
SREEDHARA, A
RAO, CP
KOLEHMAINEN, E
Keywords: spectroscopic characterization
vanadium
reactivity
salicylaldehyde
derivatives
chemistry
Issue Date: 1996
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Citation: POLYHEDRON, 15(21), 3731-3739
Abstract: Mixed ligand, mono oxovanadium(V) complexes of Schiff bases with catechol, p-tertbutylcatechol or pyrogallol have been synthesized and characterized by various spectral techniques, such as FTIR, UV-vis, V-51 NMR and electrochemistry. All of these complexes exhibited a six coordinated VO3+ center. The stability and the conversion of these complexes to pentacoordinated VO2+ species with the loss of a bidentate catecholate ligand in DMSO were demonstrated using absorption, V-51 NMR and electrochemical studies. V-51 NMR studies further suggested the formation of two possible isomers in the case of p-tertbutylcatechol and pyrogallol complexes of VO3+ Electrochemistry of these complexes showed one reversible V(V)/V(IV) couple and another irreversible V(IV)/V(III) response. The mixed ligand, VO3+ complexes are more resistant to reduction as compared to the corresponding tris catecholate complexes. Copyright (C) 1996
URI: http://dx.doi.org/10.1016/0277-5387(96)00123-4
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11057
http://hdl.handle.net/10054/11057
ISSN: 0277-5387
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