Correlation of the Solubilizing Abilities of Hexyl(trimethyl)ammonium <Emphasis Type="Italic">bis</Emphasis>((Trifluoromethyl)sulfonyl)imide, 1-Propyl-1-methylpiperidinium <Emphasis Type="Italic">bis</Emphasis>((Trifluoromethyl)sulfonyl)imide,and 1-Butyl-1-methyl-pyrrolidinium Thiocyanate |
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| Authors: | Laura M Grubbs Shulin Ye Mariam Saifullah Jr" target="_blank">William E AcreeJr Pamela Twu Jared L Anderson Gary A Baker Michael H Abraham |
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| Institution: | (1) Department of Chemistry, University of North Texas, 1155 Union Circle Drive #305070, Denton, TX 76203-5017, USA;(2) Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street MS 602, Toledo, OH 43606, USA;(3) Department of Chemistry, University of Missouri-Columbia, Columbia, MO 65211, USA;(4) Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK; |
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| Abstract: | Chromatographic retention data were measured for a wide range of organic solutes on 1-butyl-1-methylpyrrolidinium thiocyanate
(BMPyrr]+SCN]−), hexyl(trimethyl)ammonium bis((trifluoromethyl)sulfonyl)imide (HexM3Am]+(Tf)2N]−), and 1-propyl-1-methylpiperidinium bis((trifluoromethyl)sulfonyl)imide (PMPip]+(Tf)2N]−) stationary phases at 323 and 353 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) partition coefficients
and water-to-anhydrous IL partition coefficients. Both sets of partition coefficients were analyzed using the Abraham model.
The derived Abraham model correlations describe the observed gas-to-IL and water-to-IL partition coefficient data to within
average standard deviations of 0.116 and 0.156 log10 units, respectively. |
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