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  Global Journal of Physical Chemistry. Volume 1, Issue 1 (2010) pp. 1-19
  Research Article Free Article
Cation-specific and anion-specific Abraham Model correlations for solute transfer into ionic liquid solvents
  Laura M. Grubbsa, Mariam Saifullaha, Nohelli E. De La Rosaa, William E. Acree, Jr.a*, Michael H. Abrahamb, Qichao Zhaoc, Jared L. Andersonc  
a Department of Chemistry, 1155 Union Circle Drive #305070, University of North Texas, Denton, TX 76203-5017 (USA)
b Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ (UK)
c Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street MS 602, Toledo, OH 43606 (USA)


Data have been assembled from the published literature on the infinite dilution activity coefficients and gas solubilities of solutes dissolved in ionic liquid (IL) solvents. In total data for more than 1790 solute-IL pairs were compiled. The published experimental data were converted to gas-to-IL and water-to-IL partition coefficients, and correlated with the ion-specific equation coefficient version of the Abraham general solvation model. Ion-specific equation coefficients were calculated for 19 different cations and 12 different anions. The calculated ion-specific equation coefficients describe the experimental gas-to-IL and water-to-IL partition coefficient data to within 0.114 and 0.139 log units, respectively. Reported for the first time are equation coefficients for diethylphosphate, tris (pentafluoroethyl)trifluorophosphate and tetracyanoborate anions.

  Ionic liquid; partition coefficient; activity coefficients linear solvation energy relationship; solvation energy; chemical separation  

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