ABSTRACT

Effect of an ionic liquid, 1-propyl-3-methylimidazolium bromide ([PMIm]Br) on the thermodynamic and thermophysical properties of a transition metal Schiff base complex, vanadyl (N,N'-salicylideneethylendiamine), VO(salen) in N,N'-dimethylacetamide mixtures have been investigated at 298.15 K. The standard partial molar volumes, transfer partial molar volumes have been calculated using the measured densities of the mixtures. The obtained viscosity B-coefficients and activation free energy of solvent and solute was used to interpret of structure breaking tendency of ionic liquid. The calculated limiting molar conductivities, and ion association constants of ionic liquid obtained from low concentration chemical model of conductance equation have been used to confirm the conclusions obtained from the volumetric and viscometric properties. The results were discussed in terms of various solute-solvent interactions.

Compounds

#	Formula	Name
1	C16H14N2O3V	[bis(salicylidene)ethylenediaminato]oxovanadium
2	C4H9NO	N,N-dimethylethanamide
3	C7H13BrN2	1-methyl-3-propylimidazolium bromide

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	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	2 1 3	Mass density, kg/m3 ; Liquid	Solvent: Molality, mol/kg - 3; Liquid Molality, mol/kg - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	36
POMD	2 1 3	Viscosity, Pa*s ; Liquid	Solvent: Molality, mol/kg - 3; Liquid Amount concentration (molarity), mol/dm3 - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	36
POMD	2 1 3	Molar conductivity, S*m2/mol ; Liquid	Solvent: Molality, mol/kg - 1; Liquid Amount concentration (molarity), mol/dm3 - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	40
POMD	2 1	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	8
POMD	2 1	Viscosity, Pa*s ; Liquid	Amount concentration (molarity), mol/dm3 - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	8
POMD	2 3	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	3
POMD	2 3	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	3

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Thermodynamic properties of vanadyl (N,N'-salicylideneethylendiamine) Schiff base complex in ionic liquid + N,N-dimethylacetamide solutions

Shekaari, H.[Hemayat], Bezaatpour, A.[Abolfazl], Soltanpour, A.[Ayyob]

ABSTRACT