Heteronuclear NMR experiments, in particular V-51, were performed with the aim to elucidate the nature of vanadates and peroxovanadates in hydrophilic ionic liquids (i.e., [bmim][BF4], [bmim][TfO] and [bdmim][BF4]). The data so far reported clearly indicate that ionic liquids have a strong influence on the solution chemistry of vanadate in water both for the formation of the aggregates (with and without H2O2) and for the rate of peroxide consumption catalyzed by vanadium. In BF4(-) containing ionic liquids, formation of vanadate-fluoride adducts is suggested, The obtained results are also discussed in the light of the reactivity data of peroxovanadates in ionic liquids. ((C) Wiley-VCH Verlag GmbH & Co, KGaA, 69451 Weinhem, Germany, 2008)
Banyai, I., Conte, V., Pettersson, L., Silvagni, A. (2008). On the nature of VV species in hydrophilic ionic liquids: A spectroscopic approach. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY(34), 5373-5381 [10.1002/ejic.200800673].
On the nature of VV species in hydrophilic ionic liquids: A spectroscopic approach
CONTE, VALERIA;
2008-01-01
Abstract
Heteronuclear NMR experiments, in particular V-51, were performed with the aim to elucidate the nature of vanadates and peroxovanadates in hydrophilic ionic liquids (i.e., [bmim][BF4], [bmim][TfO] and [bdmim][BF4]). The data so far reported clearly indicate that ionic liquids have a strong influence on the solution chemistry of vanadate in water both for the formation of the aggregates (with and without H2O2) and for the rate of peroxide consumption catalyzed by vanadium. In BF4(-) containing ionic liquids, formation of vanadate-fluoride adducts is suggested, The obtained results are also discussed in the light of the reactivity data of peroxovanadates in ionic liquids. ((C) Wiley-VCH Verlag GmbH & Co, KGaA, 69451 Weinhem, Germany, 2008)I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
