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The enthalpy of solution of ionic liquids were measured in water at 298.15 K by calorimeter 6755 Parr Instrument Company. The enthalpies of [C2MIm][OAc] and [C4MIm][OAc] formation in the liquid state at 298.15 K were determined by Hess law on the basis of the experimental data and [С2MIm]+, [С4MIm]+(aq) [3] and ][OAc](aq) [4] enthalpies of formation. The gas phase enthalpies of formation of [C2MIm][OAc] and [C4MIm][OAc] were calculated assuming the existence of these ionic liquids in the vapor in the form of ion pairs. The conformational analysis was performed by considering the possible structures of the [C2MIm]+ and [C4MIm]+ cations and taking into account the different arrangement of the [OAc]– anion around them. The B3LYP-D3(BJ)/def2-TZVPP method was used to optimize the geometry and calculate the oscillation frequencies.
№ | Имя | Описание | Имя файла | Размер | Добавлен |
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1. | тезисы | Dorofeeva_RCCT_2022_Acetates.pdf | 136,2 КБ | 29 ноября 2022 [Druzhinina] |