# Imidazolium-Based Ionic Liquids Containing the Trifluoroacetate Anion: Thermodynamic Study

Imidazolium-Based Ionic Liquids Containing the Trifluoroacetate Anion: Thermodynamic Study New experimental vapor pressures and vaporization enthalpies of the ionic liquids $$[ {\text{C}}_{2} {\text{mim][CF}}_{3} {\text{CO}}_{2} ]$$ [ C 2 mim][CF 3 CO 2 ] and $$[ {\text{C}}_{4} {\text{mim][CF}}_{3} {\text{CO}}_{2} ]$$ [ C 4 mim][CF 3 CO 2 ] have been measured by the QCM method. The solution enthalpies of these ionic liquids were measured by using high-precision solution calorimetry and were used for calculation the aqueous enthalpy of formation $$\Delta_{\text{f}} H_{\text{m}}^{ \circ } ({\text{CF}}_{ 3} {\text{CO}}_{2}^{ - } ,_{{}} {\text{aq}})$$ Δ f H m ∘ ( CF 3 CO 2 - , aq ) of the anion for combination with quantum-chemical results. The solubility parameters of the ILs under study have been derived from experimental $$\Delta_{\text{l}}^{\text{g}} H_{\text{m}}^{ \circ }$$ Δ l g H m ∘ (298.15 K) values and were used for estimation of miscibility of some common solutes with $$[ {\text{C}}_{n} {\text{mim][CF}}_{3} {\text{CO}}_{2} ]$$ [ C n mim][CF 3 CO 2 ] . http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Solution Chemistry Springer Journals

# Imidazolium-Based Ionic Liquids Containing the Trifluoroacetate Anion: Thermodynamic Study

, Volume 47 (5) – May 22, 2018
14 pages

/lp/springer_journal/imidazolium-based-ionic-liquids-containing-the-trifluoroacetate-anion-oyQn6SIdnU
Publisher
Springer US
Subject
Chemistry; Physical Chemistry; Industrial Chemistry/Chemical Engineering; Geochemistry; Oceanography; Inorganic Chemistry; Condensed Matter Physics
ISSN
0095-9782
eISSN
1572-8927
D.O.I.
10.1007/s10953-018-0760-x
Publisher site
See Article on Publisher Site

### Abstract

New experimental vapor pressures and vaporization enthalpies of the ionic liquids $$[ {\text{C}}_{2} {\text{mim][CF}}_{3} {\text{CO}}_{2} ]$$ [ C 2 mim][CF 3 CO 2 ] and $$[ {\text{C}}_{4} {\text{mim][CF}}_{3} {\text{CO}}_{2} ]$$ [ C 4 mim][CF 3 CO 2 ] have been measured by the QCM method. The solution enthalpies of these ionic liquids were measured by using high-precision solution calorimetry and were used for calculation the aqueous enthalpy of formation $$\Delta_{\text{f}} H_{\text{m}}^{ \circ } ({\text{CF}}_{ 3} {\text{CO}}_{2}^{ - } ,_{{}} {\text{aq}})$$ Δ f H m ∘ ( CF 3 CO 2 - , aq ) of the anion for combination with quantum-chemical results. The solubility parameters of the ILs under study have been derived from experimental $$\Delta_{\text{l}}^{\text{g}} H_{\text{m}}^{ \circ }$$ Δ l g H m ∘ (298.15 K) values and were used for estimation of miscibility of some common solutes with $$[ {\text{C}}_{n} {\text{mim][CF}}_{3} {\text{CO}}_{2} ]$$ [ C n mim][CF 3 CO 2 ] .

### Journal

Journal of Solution ChemistrySpringer Journals

Published: May 22, 2018

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