INVESTIGADORES
SIGNORELLA Sandra Rosanna
artículos
Título:
Evidence for the involvement of CrII and free radicals as intermediates in the reduction of HCrO4- by saccharides, alcohols and hydroxyacids
Autor/es:
GONZÁLEZ, JUAN C.; GARCÍA, SILVIA; MAMANA, NADIA; SALA, LUIS F.; SIGNORELLA, SANDRA
Revista:
INORGANIC CHEMISTRY COMMUNICATIONS
Editorial:
Elsevier
Referencias:
Lugar: Oxford (UK); Año: 2006 vol. 9 p. 437 - 440
ISSN:
1387-7003
Resumen:
Intermediacy of free radicals and CrII in the reaction of HCrO4- with a variety of neutral and acid saccharides, hydroxyacids and alyphatic alcohols was demonstrated by the observation of free radical induced polymerization of acrylonitrile and acrylamide, and detection of CrO22+ when working in O2-saturated solutions and low [HCrO4-]. The results are interpreted in terms of a mechanism combining the CrVI ® CrIV ® CrII and CrVI ® CrIV ® CrIII pathways.
