ABSTRACT

The molecular interactions existing in ionic liquid-organic solvent have been done, both qualitatively and quantitatively, by means of electrical conductance, molar refraction and FT-IR measurements. Conductometric studies of 1-ethyl-3-methylimidazolium nitrate, 1-ethyl-3-methylimidazolium methanesulfonate and 1-ethyl-3-methylimidazolium tosylate in N,N-dimethyl formamide, N,N-dimethyl acetamide and dimethyl sulphoxide at 298.15 K reveals high molecular interaction between the solute and the solvent which is mainly contributed by ion dipole interaction as manifested from the FT-IR measurements. The interaction is highest in case of 1-ethyl-3-methylimidazolium tosylate and dimethyl sulphoxide than others. The larger share of the conductance of imidazolium based ionic liquid in unlike solvents comes from anion than cation as evident from their individual ionic conductance values which is estimated from the suitable allotment of the limiting molar conductivity value of tetrabutylammonium tetraphenylborate as reference electrolyte method. The molecular polarizability also observed to be highest in case of dimethyl sulphoxide as visible from refractive index information.

Compounds

#	Formula	Name
1	C6H11N3O3	1-ethyl-3-methylimidazolium nitrate
2	C7H14N2O3S	1-ethyl-3-methylimidazolium methanesulfonate
3	C13H18N2O3S	1-ethyl-3-methylimidazolium 4-methylbenzenesulfonate
4	C3H7NO	dimethylformamide
5	C4H9NO	N,N-dimethylethanamide
6	C2H6OS	dimethyl sulfoxide

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	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Concentric cylinders viscometry	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Concentric cylinders viscometry	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	6	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	6	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Concentric cylinders viscometry	1
POMD	4 1	Molar conductivity, S*m2/mol ; Liquid	Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Alternating current cell with electrodes	15
POMD	4 1	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	4 1	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 1; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4 2	Molar conductivity, S*m2/mol ; Liquid	Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Alternating current cell with electrodes	15
POMD	4 2	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 2; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4 2	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 2; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4 3	Molar conductivity, S*m2/mol ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Alternating current cell with electrodes	15
POMD	4 3	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4 3	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 3; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5 1	Molar conductivity, S*m2/mol ; Liquid	Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Alternating current cell with electrodes	15
POMD	5 1	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5 1	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 1; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5 2	Molar conductivity, S*m2/mol ; Liquid	Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Alternating current cell with electrodes	15
POMD	5 2	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 2; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5 2	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 2; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5 3	Molar conductivity, S*m2/mol ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Alternating current cell with electrodes	15
POMD	5 3	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5 3	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 3; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	6 1	Molar conductivity, S*m2/mol ; Liquid	Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Alternating current cell with electrodes	15
POMD	6 1	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	6 1	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 1; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	6 2	Molar conductivity, S*m2/mol ; Liquid	Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Alternating current cell with electrodes	15
POMD	6 2	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 2; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	6 2	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 2; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	6 3	Molar conductivity, S*m2/mol ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Alternating current cell with electrodes	15
POMD	6 3	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	6 3	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 3; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Conductometric, refractometric and FT-IR spectroscopic study of [EMIm]NO3, [EMIm]CH3SO3, and [EMIm]OTs in N,N-dimethyl formamide, N,N-dimethyl acetamide and dimethyl sulphoxide

Roy, M. N.[Mahendra Nath], Roy, M. C.[Milan Chandra], Choudhury, S.[Subhankar], Roy, P. K.[Pran Kumar], Dewan, R.[Rajani]

ABSTRACT