CEQUINOR   05415
CENTRO DE QUIMICA INORGANICA "DR. PEDRO J. AYMONINO"
Unidad Ejecutora - UE
artículos
Título:
On the Interaction of Vanadium Species with the Monoisoamyl Ester of meso-2,3-Dimercaptosuccinic Acid
Autor/es:
WILLIAMS, PAM; J ZINCZUK; ENRIQUE JOSE BARAN
Revista:
Biological Trace Element Research
Editorial:
Humana Press
Referencias:
Lugar: Hobocken, NJ, USA; Año: 2010 vol. 134 p. 220 - 220
ISSN:
0163-4984
Resumen:
   The interaction of the VO(2+) cation with the monoisoamyl ester of meso-2,3-dimercaptosuccinic acid (MiADMSA) was investigated by electron absorption spectroscopy in aqueous solutions at different pH-values. The spectral behavior, complemented with a spectrophotometric titration, shows the generation of a [VO(MiADMSA)2](4-) complex in which the oxocation interacts with two pairs of deprotonated -SH groups of the ester. Besides, MiADMSA rapidly reduces VO3(-) to VO(2+), which might be chelated by an excess of the ester, and also produces relatively rapid reduction of V2O5 suspensions at pH = 6.5. The results of this study suggest that MiADMSA might be a potentially useful detoxification agent for vanadium.