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The Formation of ternary complexes between VO(maltolate)2 and small bioligands

Kiss, Tamás and Kiss, Erzsébet and Micera, Giovanni and Sanna, Daniele (1998) The Formation of ternary complexes between VO(maltolate)2 and small bioligands. Inorganica Chimica Acta, Vol. 283 (1), p. 202-210. ISSN 0020-1693. Article.

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DOI: 10.1016/S0020-1693(98)00229-1

Abstract

In order to assess the solution state of VO(IV) in organisms when administered in the form of the bis(maltolato) complex (VO(malt)2), ternary systems of VO(IV)—maltol with various bioligands (potential metal ion binders of biofluids and tissues), such as inorganic phosphates, adenosine nucleotides, catechol derivatives, citrate and oxalate, were studied. The speciation of VO(IV) in these ternary systems was studied by pH-potentiometry, while the binding modes of the complexes were determined by spectral (UV—Vis and electron paramagnetic resonance) methods. The results support strongly the assumption that VO(malt)2 undergoes transformation into mixed ligand complexes formed with the various VO(IV) binders of biological fluids and tissues.

Item Type:Article
ID Code:1469
Status:Published
Refereed:Yes
Uncontrolled Keywords:Oxovanadium complexes, maltolate complexes, ternary complexes
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
Publisher:Elsevier
ISSN:0020-1693
Additional Information:Pubblicato online il 28 giugno 1999.
Deposited On:18 Aug 2009 10:05

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