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Electronic structure of oxovanadium(IV) complexes of alpha-hydroxycarboxylic acids

Garribba, Eugenio and Micera, Giovanni and Panzanelli, Angelo and Sanna, Daniele (2003) Electronic structure of oxovanadium(IV) complexes of alpha-hydroxycarboxylic acids. Inorganic Chemistry, Vol. 42 (13), p. 3981-3987. eISSN 1520-510X. Article.

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DOI: 10.1021/ic0260567

Abstract

A series of VIVO bis chelated complexes of α-hydroxycarboxylic acids with a 2(COO-, O-) coordination set was analyzed by electronic absorption and EPR spectroscopy in aqueous solution. All the complexes exhibit a square-pyramidal geometry distorted toward trigonal bipyramid. The influence of the distortion of the geometry, as deduced from the steric hindrance produced by the substituents at the α-carbon atom of the ligands, on the spectroscopic parameters has been studied. The observed trends were related to the electronic structure of the metal ion in the distorted geometry.

Item Type:Article
ID Code:1475
Status:Published
Refereed:Yes
Uncontrolled Keywords:Oxovanadium(IV), EPR spectroscopy, α-hydroxycarboxylic acids, electrochemistry
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Area 03 - Scienze chimiche > CHIM/01 Chimica analitica
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
002 Altri enti e centri di ricerca del Nord Sardegna > CNR-Consiglio Nazionale delle Ricerche > Istituto di chimica biomolecolare, Sassari
Publisher:American Chemical Society
eISSN:1520-510X
Deposited On:18 Aug 2009 10:05

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