Home|Journals|Articles by Year|Audio Abstracts
 

Original Article

ECB. 2013; 2(11): 887-897


CORRELATIONS OF SOLUTE PARTITIONING AND ENTHALPIES OF SOLVATION FOR ORGANIC SOLUTES IN IONIC LIQUIDS USING A TEMPERATURE INDEPENDENT FREE ENERGY RELATIONSHIP

Timothy W. Stephens, Bria Willis, Nishu Dabadge, Amy Tian, William E. Acree, Jr., Michael H. Abraham.




Abstract

Experimental data have been collected from the published literature for the gas-to-ionic liquid partition coefficients and molar enthalpies of
solvation for over 60 solutes in the ionic liquids 1-hexyl-3-methylimidazolium tetracyanoborate ([MHIm]+
[B(CN)4]

), 1-(2-methoxyethyl)-
1-methylpiperidinium bis(trifluoromethylsulfonyl)imide ([MeoeMPip]+
[Tf2N]–
), and 1-(2-methoxyethyl)-1-methylpyrrolidinium
bis(trifluoromethylsulfonyl)imide ([MeoeMPyrr]+
[Tf2N]–
) over the temperature range 318.15 K to 368.15 K. The logarithm of the gas-toionic liquid partition coefficient, logKL, have been correlated to a temperature independent free energy relationship utilizing known
Abraham solvation parameters. The resulting mathematical expressions describe the experimental logKL values to within a standard
deviation of 0.077 log units or less and Hsolv to within a standard deviation of 1.344 kJ mol-1 or less.

Key words: partition coefficient, 1-hexyl-3-methylimidazolium tetracyanoborate, 1-(2-methoxyethyl)-1-methylpiperidinium bis(trifluoromethylsulfonyl)imide and 1-(2-methoxyethyl)-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, ionic liquids, temperature independence, linear free energy relationships, enthalpies of solvation






Full-text options


Share this Article


Online Article Submission
• ejmanager.com




ejPort - eJManager.com
Refer & Earn
JournalList
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under Creative Commons Attribution 4.0 International License (CC BY), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.