The influence of structure of ionic liquid containing cyano group on mutual solubility with water

Monika Karpińska , Marta Królikowska

Abstract

In this research, the solubility of a following ionic liquids (ILs): 1-butyl-4-cyano-pyridinium bis{(triflouromethyl)sulfonyl}imide, [BCN4Py][NTf2], 1-hexyl-4-cyano-pyridinium bis{(trifluoromethyl)sulfonyl}imide, [HCN4Py][NTf2], 1-hexyl-3-cyano-pyridinium bis{(trifluoromethyl)sulfonyl}imide, [HCN3Py][NTf2], 1-octyl-3-cyano-pyridinium bis{(triflouromethyl)sulfonyl}imide, [OCN3Py][NTf2], in water were experimentally determined. The experiment was carried out at a wide temperature and composition range at ambient pressure using a dynamic method. Data obtained from this experiment was satisfactorily described with the Non-Random Two-Liquid (NRTL) thermodynamic model. Based on the experiment, the influence of the IL’s structure, especially, the effect of the functionalization, position (positional isomers) and alkyl chain length of the substituents of the cation as well as the structure of the cation core on mutual solubility with water was analyzed and discussed. Additionally, the experimental data presented in this research were compared to available literature data for other ILs with a similar structure.
Author Monika Karpińska (FC / DPC)
Monika Karpińska,,
- Department Of Physical Chemistry
, Marta Królikowska (FC / DPC)
Marta Królikowska,,
- Department Of Physical Chemistry
Journal seriesJournal of Chemical Thermodynamics, ISSN 0021-9614, (N/A 100 pkt)
Issue year2019
Vol137
Pages56-61
Publication size in sheets0.5
Keywords in EnglishIonic liquidWaterSolubilityPhase diagramUCSTNRTL model
ASJC Classification1606 Physical and Theoretical Chemistry
DOIDOI:10.1016/j.jct.2019.05.019
URL https://www.sciencedirect.com/science/article/pii/S0021961419301491?via%3Dihub
Languageen angielski
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Score (nominal)100
Score sourcejournalList
ScoreMinisterial score = 100.0, 20-10-2019, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.111; WoS Impact Factor: 2017 = 2.631 (2) - 2017=2.531 (5)
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