@article{0753d5d84a774dbe98aa57601fc51be2,
title = "Effect of cation symmetry on the low-frequency spectra of imidazolium ionic liquids: OKE and Raman spectroscopic measurements and DFT calculations",
abstract = "This article reports a study of the low-frequency optical Kerr effect (OKE) and Raman spectra of 1-propyl-3-methylimidazolium bis[(trifluoromethane) sulfonyl]amide ([C3C1im][NTf2]) and 1,3-diethylimidazolium bis[(trifluoromethane)sulfonyl]amide ([(C 2)2im][NTf2]). These ionic liquids differ only in the symmetry of the alkyl substitution on the imidazolium ring of the cation. DFT calculations on the isolated ions provide guidance in the assignment of the OKE and Raman spectra in the 0-200 cm-1 region to intermolecular and intramolecular vibrational modes of the liquid.",
author = "Dong Xiao and Hines, {Larry G.} and Holtz, {Mark W.} and Kihyung Song and Bartsch, {Richard A.} and Quitevis, {Edward L.}",
note = "Funding Information: This research was supported by the National Science Foundation under grant CHE-0718678 and by the Donors of American Chemical Society Petroleum Research Fund under grant 47615-AC6 to E.L.Q. This research was partially supported by the Texas Tech University Research Enhanced Fund under a grant to E.L.Q. and by The Welch Foundation under grant D-0775 to R.A.B. The research contributions of K.S. were supported by the Air Force Office of Scientific Research and by The Welch Foundation under grant D-0005 . ",
year = "2010",
month = sep,
day = "10",
doi = "10.1016/j.cplett.2010.07.085",
language = "English",
volume = "497",
pages = "37--42",
journal = "Chemical Physics Letters",
issn = "0009-2614",
number = "1-3",
}