Physical Properties of Ionic Liquids Consisting of the 1-Butyl-3-Methylimidazolium Cation with Various Anions and the Bis(trifluoromethylsulfonyl)imide Anion with Various Cations

Journal Article · Tue Jan 01 00:00:00 EST 2008 · Journal of Physical Chemistry B

DOI:https://doi.org/10.1021/jp076462h· OSTI ID:1078203

Jin, Hui ^[1]; O'Hare, Bernie ^[1]; Dong, Jing ^[1]; Arzhantsev, Sergei ^[1]; Baker, Gary A ^[2]; Wishart, James F. ^[3]; Benesi, Alan ^[1]; Maroncelli, Mark ^[1]

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1. Pennsylvania State University, University Park, PA
2. ORNL
3. Brookhaven National Laboratory (BNL)

Physical properties of 4 room-temperature ionic liquids consisting of the 1-butyl-3-methylimidazolium cation with various perfluorinated anions and the bis(trifluoromethylsulfonyl)imide (Tf2N-) anion with 12 pyrrolidinium-, ammonium-, and hydroxyl-containing cations are reported. Electronic structure methods are used to calculate properties related to the size, shape, and dipole moment of individual ions. Experimental measurements of phase-transition temperatures, densities, refractive indices, surface tensions, solvatochromic polarities based on absorption of Nile Red, 19F chemical shifts of the Tf2N- anion, temperature-dependent viscosities, conductivities, and cation diffusion coefficients are reported. Correlations among the measured quantities as well as the use of surface tension and molar volume for estimating Hildebrand solubility parameters of ionic liquids are also discussed.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1078203
• Journal Information: Journal of Physical Chemistry B, Vol. 112, Issue 1; ISSN 1520--6106
• Country of Publication: United States
• Language: English