Vapourisation of ionic liquids

被引：341
作者：
Armstrong, James P. [1 ]
Hurst, Christopher [1 ]
Jones, Robert G. [1 ]
Licence, Peter [1 ]
Lovelock, Kevin R. J. [1 ]
Satterley, Christopher J. [1 ]
Villar-Garcia, Ignacio J. [1 ]
机构：
[1] Univ Nottingham, Sch Chem, Dept Phys Chem, Nottingham NG7 2RD, England
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2007年 / 9卷 / 08期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1039/b615137j
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
引用
收藏
页码：982 / 990
页数：9
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