Abstract
Thermochemical investigation of the series of 1-alkyl-3-methylimidazolium ionic liquids with B(CN)4 and PF2(CN)4 anions is presented. Absolute vapor pressures and vaporization enthalpies have been measured by using quartz-crystal microbalance. Gas-phase enthalpies of formation of ILs were calculated by using the high-level quantum-chemical method G3MP2. From a combination of experimental and theoretical results, the enthalpy of formation of aqueous B(CN)4 ion was derived for the first time.
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