Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/1293
Título: Enthalpies of solution of 1-butyl-3-methylimidazolium tetrafluoroborate in 15 solvents at 298.15 k
Autor: Reis, Marina
Leitão, Rúben Elvas
Martins, Filomena
Palavras-chave: Ionic liquids
Data: Fev-2010
Editora: Amer Chemical Soc
Citação: Reis M, Leitão R E, Martins F. Enthalpies of Solution of 1-Butyl-3-methylimidazolium Tetrafluoroborate in 15 Solvents at 298.15 K. Journal of Chemical and Engineering Data. 2010; 55 (2): 616-620.
Relatório da Série N.º: 2;
Resumo: Enthalpies of solution of 1-butyl-3-methylimidazolium tetra fluoroborate, [BMIm]BF4, are reported at 298.15 K in a set of 15 hydrogen bond donor and hydrogen bond acceptor solvents, chosen by their diversity, namely, water, methanol, ethanol, 1,2-ethanediol, 2-choroethanol, 2-methoxyethanol, formamide, propylene carbonate, nitromethane, acetonitrile, dimethyl sulfoxide, acetone, N,N-dimethylformamide, N,N-dimethylacetamide, and aniline. These values are shown to be largely independent of [BMIm]BF4 concentration. The obtained enthalpies of solution vary from very endothermic to quite exothermic, thus showing a very high sensitivity of the enthalpies of solution of [BMIm]BF4 to solvent properties. Solvent effects on the solution process of this IL are analyzed by a quantitative structure-property relationship methodology, using the TAKA equation and a modified equation, which significantly improves the model's predictive ability. The observed differences in the enthalpies of solution are rationalized in terms of the solvent properties found to be relevant, that is, pi* and E-T(N).
Peer review: yes
URI: http://hdl.handle.net/10400.21/1293
ISSN: 0021-9568
Aparece nas colecções:ISEL - Eng. Quim. Biol. - Artigos

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