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Thermochemistry of Pyridinium Based Ionic Liquids with Tetrafluoroborate Anion
Author(s) -
Zaitsau Dzmitry H.,
Yermalayeu Andrei V.,
Emel'yanenko Vladimir N.,
Schulz Axel,
Verevkin Sergey P.
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201600335
Subject(s) - pyridinium , tetrafluoroborate , ionic liquid , chemistry , thermochemistry , standard enthalpy of formation , inorganic chemistry , enthalpy , calorimetry , enthalpy of vaporization , ionic bonding , aqueous solution , pyridinium compounds , ion , organic chemistry , thermodynamics , catalysis , physics
Enthalpies of vaporization of five pyridinium based ionic liquids (ILs): 1‐ R ‐pyridinium (with R = ethyl, butyl‐, and hexyl), 1‐butyl‐3‐methyl‐pyridinium, and 1‐butyl‐4‐methyl‐pyridinium with tetrafluoroborate anion were studied using Quartz Crystal Microbalance (QCM). Enthalpies of solution of these ionic liquids were measured by high‐precision solution calorimetry. Gas‐phase enthalpies of formation of ILs were calculated by using the high‐level quantum‐chemical method G3MP2. From combination of experimental and theoretical results, enthalpies of formation of aqueous pyridinium based cations were derived for the first time.