Activity Coefficients at Infinite Dilution for Organic Solutes Dissolved in Three 1-Alkyl-1-methylpyrrolidinium Bis(trifluoromethylsulfonyl)imide Ionic Liquids Bearing Short Linear Alkyl Side Chains o

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• 作者：Fabrice Mutelet ; El-Sayed R. E. Hassan ; Timothy W. Stephens ; William E. Acree ; Jr. ; Gary A. Baker
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2013
• 出版时间：August 8, 2013
• 年：2013
• 卷：58
• 期：8
• 页码：2210-2218
• 全文大小：246K
• 年卷期：v.58,no.8(August 8, 2013)
• ISSN：1520-5134

文摘

In this work, we report the infinite dilution activity coefficients (纬_1,2^{鈭?/sup>) of 39 to 43 diverse organic solutes dissolved in three 1-alkyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquids (IL) homologues bearing propyl, butyl, and pentyl n-alkyl side chains, respectively, as determined by inverse gas chromatography at temperatures from 323 K to 343 K. The organic solutes include various (cyclo)alkanes, alkenes, alkynes, aromatic hydrocarbons, alcohols, thiophene, ethers, nitroalkanes, and ketones. The measured retention data were further transformed to gas-to-IL and water-to-IL partition coefficients using established thermodynamic approaches based upon the corresponding gas-to-water partition coefficients of the test solutes. Both sets of partition coefficients were interpreted with a modified form of the basic Abraham general solvation parameter model. The mathematical correlations obtained by regression analysis back-calculated the observed gas-to-IL and water-to-IL partition coefficient data to within average standard deviations of 0.104 and 0.136 log units, respectively.}