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Peculiar Concentration Dependence of H/D Exchange Reaction in 1-Butyl-3-methylimidazolium Tetrafluoroborate-D2O Mixtures

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DOI: 10.4236/ojpc.2011.13010    4,422 Downloads   9,045 Views Citations

ABSTRACT

We have investigated the H/D exchange reaction between heavy water and an ionic liquid, 1-butyl-3-methyl-imidazolium tetrafluoroborate ([bmim][BF4]), throughout the whole concentration region as a function of D2O mol% at room temperature. We expected that the extent of the H/D reaction would increase linearly with increasing content of D2O, but the results show an extended N-shaped behavior having a small maximum at around 40 mol% and the reaction becomes very slow at a specific concentration around 80 mol%. We found that this non-linear concentration dependence correlates with the pD dependence of the solutions.

Cite this paper

H. Abe, N. Hatano, Y. Ima, S. Ohta, A. Shimizu and Y. Yoshimura, "Peculiar Concentration Dependence of H/D Exchange Reaction in 1-Butyl-3-methylimidazolium Tetrafluoroborate-D2O Mixtures," Open Journal of Physical Chemistry, Vol. 1 No. 3, 2011, pp. 70-76. doi: 10.4236/ojpc.2011.13010.

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