High-Pressure Study of Solvation Properties of Room-Temperature Ionic Liquids

被引:6
|
作者
Minamikawa, Y. [1 ]
Kometani, N. [1 ]
机构
[1] Osaka City Univ, Dept Appl Chem, Grad Sch Engn, Sumiyoshi Ku, Osaka 5588585, Japan
关键词
SOLVATOCHROMIC COMPARISON METHOD; PI-STAR; SCALE; COUMARIN-153; DYNAMICS; ALPHA; BETA;
D O I
10.1088/1742-6596/215/1/012067
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The solvation properties of some room-temperature ionic liquids consisting of imidazolium cations and various anions were examined by means of the high-pressure spectroscopy with solvatochromic probes. We measured the pressure dependence of Kamlet-Taft solvatochromic parameters (pi*; beta) and microviscosity (eta). It was found that pi* and beta were not so sensitive to the types of imidazolium cations and polyatomic anions, but the type of monoatomic anions. The pressure dependence of microviscosity was found to obey the empirical power-law equation.
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页数:5
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