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Direct Correlation Between the H/D Exchange Reaction and Conformational Changes of the Cation in Imidazolium-Based Ionic Liquid–D2O Mixtures

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Abstract

We present a study on the effects of deuterated water on the conformational equilibria of the imidazolium cation in aqueous mixtures of imidazolium-based ionic liquids at room temperature. We provide spectroscopic evidence that the conformational dynamics of the imidazolium cation in D2O are directly related to the H/D exchange reaction of the C–H group at position 2 on the imidazolium ring. The relation is supported by comparing Raman spectra obtained from solutions prepared with H2O and D2O.

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Acknowledgments

We appreciate Prof. A. Shimizu of Soka University for the fruitful discussion.

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Authors and Affiliations

  1. Department of Applied Chemistry, National Defense Academy, Yokosuka, Kanagawa, 239-8686, Japan

    Y. Yoshimura, N. Hatano & T. Takekiyo

  2. Department of Materials Science and Engineering, National Defense Academy, Yokosuka, Kanagawa, 239-8686, Japan

    H. Abe

Authors
  1. Y. Yoshimura
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  2. N. Hatano
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  3. T. Takekiyo
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  4. H. Abe
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Correspondence to Y. Yoshimura.

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Yoshimura, Y., Hatano, N., Takekiyo, T. et al. Direct Correlation Between the H/D Exchange Reaction and Conformational Changes of the Cation in Imidazolium-Based Ionic Liquid–D2O Mixtures. J Solution Chem 43, 1509–1518 (2014). https://doi.org/10.1007/s10953-014-0181-4

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  • DOI: https://doi.org/10.1007/s10953-014-0181-4

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