Vapourisation of ionic liquids
Physical Chemistry Chemical Physics2007Vol. 9(8), pp. 982–982
Citations Over TimeTop 1% of 2007 papers
James P. Armstrong, Christopher Hurst, Robert G. Jones, Peter Licence, Kevin R. J. Lovelock, Christopher J. Satterley, Ignacio J. Villar‐García
Abstract
Eight common imidazolium based ionic liquids have been successfully evaporated in ultra-high vacuum, their vapours analysed by line of sight mass spectrometry and their heats (enthalpy) of vapourisation determined. They were found to evaporate as ion pairs, with heats of vapourisation which depend primarily on the coulombic interactions within the liquid phase and the gas phase ion pair. An electrostatic model is presented relating the heats of vapourisation to the molar volumes of the ionic liquids.
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