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Infinite Dilution Activity Coefficients and Gas-to-Liquid Partition Coefficients of Organic Solutes Dissolved in 1-Benzylpyridinium Bis(Trifluoromethylsulfonyl)Imide and 1-Cyclohexylmethyl-1-Methylpyrrolidinium Bis(Trifluoromethylsulfonyl)Imide

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Abstract

Infinite dilution activity coefficients and gas-to-ionic liquid partition coefficients were measured for a chemically diverse set of 48 or more organic solute probes dissolved in the ionic liquids 1-benzylpyridinium bis(trifluoromethylsulfonyl)imide ([BzPy][Tf2N]) and 1-cyclohexylmethyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([ChxmPyrr][Tf2N]) in the temperature range from 323.15 to 373.15 K using inverse gas chromatography. Selectivities and capacities for different separation problems were calculated from the measured chromatographic data. The measured partition coefficients were correlated using mathematical equations based on the Abraham general solvation parameter model. The derived Abraham model correlations back-calculated the observed partition coefficients to within 0.12 log10 units.

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Acknowledgements

Xin Tong thanks the University of North Texas’s Texas Academy of Math and Science (TAMS) program for a summer research award.

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Authors and Affiliations

  1. Université de Lorraine, Ecole Nationale Supérieure des Industries Chimiques, Laboratoire Réactions et Génie des Procédés (UMR CNRS 7274), 1 rue Grandville, 54000, Nancy, France

    Fabrice Mutelet

  2. Department of Chemistry, University of Missouri-Columbia, Columbia, MO, 65211, USA

    Sudhir Ravula & Gary A. Baker

  3. Department of Chemistry, University of North Texas, 1155 Union Circle #305070, Denton, TX, 76203-5017, USA

    Delani Woods, Xin Tong & William E. Acree Jr.

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  1. Fabrice Mutelet
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  2. Sudhir Ravula
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  5. Xin Tong
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  6. William E. Acree Jr.
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Mutelet, F., Ravula, S., Baker, G.A. et al. Infinite Dilution Activity Coefficients and Gas-to-Liquid Partition Coefficients of Organic Solutes Dissolved in 1-Benzylpyridinium Bis(Trifluoromethylsulfonyl)Imide and 1-Cyclohexylmethyl-1-Methylpyrrolidinium Bis(Trifluoromethylsulfonyl)Imide. J Solution Chem 47, 308–335 (2018). https://doi.org/10.1007/s10953-018-0720-5

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