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Influence of Water on the Orientation of Cations at the Surface of a Room-Temperature Ionic Liquid: A Sum Frequency Generation Vibrational Spectroscopic Study
Abstract
Sum frequency generation vibrational spectroscopy was used to determine the orientation of the cations in a room-temperature ionic liquid at the air−liquid interface. The ionic liquid that was studied was 1-butyl-3-methylimidazolium bis-trifluoromethylsulfonimide, [BMIM] + [imide] - . The orientation of the cation, [BMIM] +, was studied as a function of water pressure in the vapor over the range of 10 -5 to 200 Torr. At water pressures below 10 -4 Torr, the imidazolium ring was oriented parallel to the surface plane. On increasing the water pressure to greater than 10 -4 Torr, the imidazolium ring tipped up from the surface with an angle along the surface normal of 40−55°. No water signal was observed in the spectra obtained at the water pressures studied here.
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Citations
Cites
Air and water stable 1-ethyl-3-methylimidazolium based ionic liquids
Wilkes, J. S., & Zaworotko, M. J. (1992) · Journal of the Chemical Society, Chemical Communications · doi:10.1039/c39920000965 · Cited by 1,883
Cammarata, L., Kazarian, S. G., Salter, P. A., & Welton, T. (2001) · Physical Chemistry Chemical Physics · doi:10.1039/b106900d · Cited by 1,441
Cited by
Molecular Dynamics Simulation of Nanostructural Organization in Ionic Liquid/Water Mixtures
Jiang, W., Wang, Y., & Voth, G. A. (2007) · The Journal of Physical Chemistry B · doi:10.1021/jp067142l · Cited by 458
Goodchild, I., Collier, L., Millar, S. L., Prokeš, I., Lord, J. C. D., Butts, C. P., Bowers, J., Webster, J. R. P., & Heenan, R. K. (2007) · Journal of Colloid and Interface Science · doi:10.1016/j.jcis.2006.11.034 · Cited by 301
Density and Surface Tension of Ionic Liquids
Kolbeck, C., Lehmann, J., Lovelock, K. R. J., Cremer, T., Paape, N., Wasserscheid, P., Fröba, A. P., Maier, F., & Steinrück, H.-P. (2010) · The Journal of Physical Chemistry B · doi:10.1021/jp1068413 · Cited by 269
Metadata
- Authors
- Baldelli, S.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-06-01
- Volume
- 107
- Issue
- 25
- Pages
- 6148-6152
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2053204944
- Cited by
- 173
- References
- 2
- FWCI
- 4.49
- Type
- journal article
- Language
- en
- Open access
- closed
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- Baldelli, S. (2003). Influence of Water on the Orientation of Cations at the Surface of a Room-Temperature Ionic Liquid: A Sum Frequency Generation Vibrational Spectroscopic Study. The Journal of Physical Chemistry B. https://doi.org/10.1021/jp027753n
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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