Journal of Chemical Thermodynamics, Vol.43, No.10, 1500-1505, 2011
Building blocks for ionic liquids: Vapor pressures and vaporization enthalpies of 1-(n-alkyl)-imidazoles
Vapor pressures of the linear 1-(n-alkyl)-imidazoles with the alkyl chain C(3), C(5)-C(7), and C(9)-C(10) have been measured by the transpiration method. The molar enthalpies of vaporization Delta(g)(I)H(m), of these compounds were derived from the temperature dependencies of vapor pressures. A linear correlation of enthalpies of vaporization Delta(g)(I)H(m), (298.15 K) of the 1-(n-alkyl)-imidazoles with the chain length has been found. (C) 2011 Elsevier Ltd. All rights reserved.