ABSTRACT

A molecular interaction study is carried out between the ionic liquid (IL) 1-ethyl-3-methylimidazolium trifluoromethanesulfonate and 1-pentanol using the experimental values of density, speed of sound and refractive index measurements over the whole composition range as a function of temperature between (298.15 and 328.15) K at atmospheric pressure. The excess/deviation properties, such as molar volumes, partial molar volumes, partial molar volumes at infinite dilution, isentropic compressibility, free length, speeds of sound, refractive index and isobaric thermal expansion coefficient obtained from the experimental values are fitted into the Redlich-Kister type equation to obtain the binary coefficients and the standard deviations. The negative values of excess properties such as VE,m, .kappa.E,S; LE,f ; .alpha.E,P and the positive values of uE, DnD clearly indicated the existence of strong molecular interactions between the studied components. The values of (dVE,m/dT)P and (dHE,m/dP)T are also calculated to support the existing interactions. A quantitative analysis of these parameters is further supported by IR spectroscopic analysis.

Compounds

#	Formula	Name
1	C7H11F3N2O3S	1-ethyl-3-methylimidazolium trifluoromethanesulfonate
2	C5H12O	pentan-1-ol

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	4
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	4
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	4
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	4
POMD	2 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	60
POMD	2 1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	60
POMD	2 1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	60

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

The study of molecular interactions in 1-ethyl-3-methylimidazolium trifluoromethanesulfonate + 1-pentanol from density, speed of sound and refractive index measurements

Srinivasa Reddy, M., Khan, I.[Imran], Raju, K. T. S. S.[K. Thomas S. S.], Suresh, P., Hari Babu, B.

ABSTRACT