Journal
CHEMICAL PHYSICS LETTERS
Volume 492, Issue 1-3, Pages 55-59Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2010.03.086
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Funding
- Office for Basic Sciences, US Department of Energy
- Nanyang Technological University, SUG
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Several ionic liquids were synthesized to investigate the influence of alkyl chain length and functional group attached to the cation on polarity and on three Kamlet-Taft parameters. Results are reported for polarity, dipolarity/polarizability, hydrogen-bond-donating acidity, and hydrogen-bond-accepting basicity in the range 25-65 degrees C. A long alkyl chain (1-octyl) on the pyrrolidinium cation leads to high polarity and high hydrogen-bond-donating acidity. At 25 degrees C, the hydrogen-bond-donating acidity for 1-methyl-1- octyl pyrrolidinium bis(trifluoromethansulfonyl)imide is close to that for water. (C) 2010 Elsevier B.V. All rights reserved.
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