High-pressure study of solvation properties of room-temperature ionic liquids

نویسندگان

  • Y Minamikawa
  • N Kometani
چکیده

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 KamletTaft solvatochromic parameters (π∗, β) and microviscosity (η). It was found that π∗ and β 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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تاریخ انتشار 2009