ABSTRACT

Energy conversion in sonochemistry is known to be an important factor for understanding the mechanism of chemical reactions. However, ultrasound characteristics are dependent on the physical properties of the liquid medium. This work describes specific heat capacities (cp) of five hydrophobic bis(trifluoromethylsulfonyl)imide based ionic liquids ([C8mpyrr][NTf2], [C4mpyrr][NTf2], [C8epip][NTf2], [C8mim][NTf2], [C8mpy][NTf2]) and, for the first time, the acoustic power when they are submitted to ultrasound at two selected electric powers. The behavior of ultrasound in ionic liquids is then compared to the one in water. Despite the difference in cp values, the measured acoustic powers are very similar for both media. Indeed, ionic liquids heat up faster than water, and this can lead to interesting effects when using ionic liquids as solvents in organic chemistry

Compounds

#	Formula	Name
1	C15H28F6N2O4S2	1-methyl-1-octylpyrrolidinium bis(trifluoromethylsulfonyl)amide
2	C11H20F6N2O4S2	1-butyl-1-methylpyrrolidinium bis[(trifluoromethyl)sulfonyl]imide
3	C17H32F6N2O4S2	1-ethyl-1-octylpiperidinium bis((trifluoromethyl)sulfonyl)amide
4	C14H23F6N3O4S2	1-octyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide
5	C15H22F6N2O4S2	1-octylpyridinium bis((trifluoromethyl)sulfonyl)amide

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	SDSC:UFactor:24	13
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	SDSC:UFactor:24	13
POMD	3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	SDSC:UFactor:24	13
POMD	4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	SDSC:UFactor:24	13
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	SDSC:UFactor:24	13

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Ultrasonic Properties of Hydrophobic Bis(trifluoromethylsulfonyl)imide-Based Ionic Liquids

Chatel, G.[Gregory], Leclerc, L.[Laurent], Naffrechoux, E.[Emmanuel], Bas, C.[Corine]

ABSTRACT