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On the Nature of V V Species in Hydrophilic Ionic Liquids: A Spectroscopic Approach
Author(s) -
Bányai István,
Conte Valeria,
Pettersson Lage,
Silvagni Adriano
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200800673
Subject(s) - chemistry , ionic liquid , vanadate , heteronuclear molecule , inorganic chemistry , vanadium , ionic bonding , reactivity (psychology) , adduct , ion , catalysis , nuclear magnetic resonance spectroscopy , organic chemistry , medicine , alternative medicine , pathology
Abstract Heteronuclear NMR experiments, in particular 51 V, wereperformed with the aim to elucidate the nature of vanadates and peroxovanadates in hydrophilic ionic liquids (i.e., [bmim][BF 4 ], [bmim][TfO] and [bdmim][BF 4 ]). 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 H 2 O 2 ) and for the rate of peroxide consumption catalyzed by vanadium. In BF 4 – 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. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)