American Chemical Society
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Physicochemical Properties of Air and Water Stable Rhenium Ionic Liquids

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journal contribution
posted on 2012-03-01, 00:00 authored by Da-Wei Fang, Han Wang, Shuang Yue, Ying Xiong, Jia-Zhen Yang, Shu-Liang Zang
Air and water stable ionic liquids (ILs) based on catalytic functional metal rhenium, [Cnmim]­[ReO4]­(n = 2,4,5,6)­(1-alkyl-3-methylimidazolium perrhenate), are designed and synthesized. Their density and surface tension are measured in the temperature range of 293.15–343.15 ± 0.05 K. Some physical-chemical properties of the ILs have been calculated or estimated by the empirical methods. The ion parachor is put forward and calculated by two extrathermodynamic assumptions. According to the interstice model, the thermal expansion coefficient of ILs [Cnmim]­[ReO4], α, are calculated and in comparison with experimental values, their magnitude order is in good agreement.