Name: ThermoML Representation of Published Experimental Data from Journal of Chemical and Engineering Data (0021-9568, American Chemical Society)
Creator: Thermodynamics Research Center
License: https://www.nist.gov/open/license

ABSTRACT

The transpiration method has been used to measure temperature dependence of vapor pressures for the 1-(n-alkyl)-2-methylimidazoles with the linear alkyl chain C2 C10. The molar enthalpies of vaporization at 298.15 K of this homologues series were correlated with the number of carbon atoms in the alkyl chain, as well as with the Kovat's indices on the low-polar gas chromatography (GC) columns. In both cases linear correlations have been found.

Compounds

#	Formula	Name
1	C7H12N2	2-methyl-1-propyl-1H-imidazole
2	C8H14N2	1-butyl-2-methyl-1H-imidazole
3	C9H16N2	2-methyl-1-pentyl-1H-imidazole
4	C10H18N2	1-hexyl-2-methyl-1H-imidazole
5	C11H20N2	1-heptyl-2-methyl-1H-imidazole
6	C6H10N2	1-ethyl-2-methyl-1H-imidazole
7	C12H22N2	2-methyl-1-octyl-1H-imidazole
8	C13H24N2	2-methyl-1-nonyl-1H-imidazole
9	C14H26N2	1-decyl-2-methyl-1H-imidazole

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	Phase	Method	#Points
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration method	55
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration method	26
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration method	26
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration method	18
POMD	5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration method	34
POMD	6	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration method	32
POMD	7	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration method	21
POMD	8	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration method	46
POMD	9	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Transpiration method	16

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

Building Blocks for Ionic Liquids: A Study of Alkyl Chain Length Dependence of Vaporization Enthalpies of 1-(n-Alkyl)-2-methylimidazoles

Emel'yanenko, V. N.[Vladimir N.], Portnova, S. V.[Svetlana V.], Verevkin, S. P.[Sergey P.]

ABSTRACT