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Correlation of the Solubilizing Abilities of 1-Butyl-1-methyl-pyrrolidinium Tris(pentafluoroethyl)trifluorophosphate, 1-Butyl-1-methylpyrrolidinium Triflate and 1-Methoxyethyl-1-methylmorpholinium Tris(pentafluoroethyl)trifluorophosphate |
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| Authors: | Pamela Twu Jared L Anderson Timothy W Stephens Anastasia Wilson William E Acree Jr Michael H Abraham |
| Institution: | 1. Department of Chemistry, The University of Toledo, 2801?W. Bancroft Street MS 602, Toledo, OH, 43606, USA 2. Department of Chemistry, University of North Texas, 1155 Union Circle Drive #305070, Denton, TX, 76203-5017, USA 3. Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK |
| Abstract: | Chromatographic retention data were measured for a wide range of organic solutes on 1-butyl-1-methylpyrolidinium tris(pentafluoroethyl)trifluorophosphate (BMPyrr]+FAP]?), 1-butyl-1-methylpyrrolidinium triflate, (BMPyrr]+Trif]?), and 1-methoxyethyl-1-methylmorpholinium tris(pentafluoroethyl)trifluorophosphate, (MeoeMMorp]+FAP]?), stationary phases at (323, 353 and 383) K. The measured retention factors were combined with published infinite dilution activity coefficient and gas-to-water partition coefficient data to yield gas-to-anhydrous ionic liquid (IL) and water-to-anhydrous IL partition coefficients. The three sets of partition coefficients were analyzed using the Abraham model. The derived Abraham model correlations describe the observed gas-to-IL (log10 K) and water-to-IL (log10 P) partition coefficient data to within average standard deviations of about 0.11 and 0.15 log10 units, respectively. |
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