期刊
CHEMICAL PHYSICS LETTERS
卷 497, 期 1-3, 页码 37-42出版社
ELSEVIER
DOI: 10.1016/j.cplett.2010.07.085
关键词
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资金
- National Science Foundation [CHE-0718678]
- Donors of American Chemical Society Petroleum Research Fund [47615-AC6]
- Texas Tech University
- The Welch Foundation [D-0775, D-0005]
- Air Force Office of Scientific Research
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 ([C(3)C(1)im][NTf2]) and 1,3-diethylimidazolium bis[(trifluoromethane)sulfonyl]amide ([(C-2)(2)im][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. (C) 2010 Elsevier B.V. All rights reserved.
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