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Protic Ionic Liquids: Preparation, Characterization, and Proton Free Energy Level Representation
Abstract
We give a perspective on the relations between inorganic and organic cation ionic liquids (ILs), including members with melting points that overlap around the borderline 100 degrees C. We then present data on the synthesis and properties (melting, boiling, glass temperatures, etc.) of a large number of an intermediate group of liquids that cover the ground between equimolar molecular mixtures and ILs, depending on the energetics of transfer of a proton from one member of the pair to the other. These proton-transfer ILs have interesting properties, including the ability to serve as electrolytes in solvent-free fuel cell systems. We provide a basis for assessing their relation to aprotic ILs by means of a Gurney-type proton-transfer free energy level diagram, with approximate values of the energy levels based on free energy of formation and pK(a) data. The energy level scheme allows us to verify the relation between solvent-free acidic and basic electrolytes, and the familiar aqueous variety, and to identify neutral protic electrolytes that are unavailable in the case of aqueous systems.
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Cites
CRC Handbook of Chemistry and Physics
(2014) · doi:10.1201/b17118 · Cited by 57,706
Cited by
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Structure and Nanostructure in Ionic Liquids
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The third evolution of ionic liquids: active pharmaceutical ingredients
Hough, W. L., Smiglak, M., Rodríguez, H., Swatloski, R. P., Spear, S. K., Daly, D. T., Pernak, J., Grisel, J. E., Carliss, R. D., Soutullo, M. D., et al. (2007) · New Journal of Chemistry · doi:10.1039/b706677p · Cited by 872
Multiscale Studies on Ionic Liquids
Dong, K., Liu, X., Dong, H., Zhang, X., & Zhang, S. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00776 · Cited by 773
Parallel Developments in Aprotic and Protic Ionic Liquids: Physical Chemistry and Applications
Angell, C. A., Byrne, N., & Belieres, J.-P. (2007) · Accounts of Chemical Research · doi:10.1021/ar7001842 · Cited by 531
Self-citationNonhumidified Intermediate Temperature Fuel Cells Using Protic Ionic Liquids
Lee, S.-Y., Ogawa, A., Kanno, M., Nakamoto, H., Yasuda, T., & Watanabe, M. (2010) · Journal of the American Chemical Society · doi:10.1021/ja102367x · Cited by 465
Overview of acidic deep eutectic solvents on synthesis, properties and applications
Qin, H., Hu, X., Wang, J., Cheng, H., Chen, L., & Qi, Z. (2020) · Green Energy & Environment · doi:10.1016/j.gee.2019.03.002 · Cited by 448
Ionic Liquids in Pharmaceutical Applications
Marrucho, I. M., Branco, L. C., & Rebelo, L. P. N. (2014) · Annual Review of Chemical and Biomolecular Engineering · doi:10.1146/annurev-chembioeng-060713-040024 · Cited by 406
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Amphiphilicity determines nanostructure in protic ionic liquids
Hayes, R., Imberti, S., Warr, G. G., & Atkin, R. (2011) · Phys. Chem. Chem. Phys. · doi:10.1039/c0cp01137a · Cited by 299
Design, synthesis and properties of acidic deep eutectic solvents based on choline chloride
Cui, Y., Li, C., Yin, J., Li, S., Jia, Y., & Bao, M. (2017) · Journal of Molecular Liquids · doi:10.1016/j.molliq.2017.04.052 · Cited by 238
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Self-citationEffect of molecular weight on the ion transport mechanism in polymerized ionic liquids
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Rashid, T., Gnanasundaram, N., Appusamy, A., Kait, C. F., & Thanabalan, M. (2018) · Industrial Crops and Products · doi:10.1016/j.indcrop.2018.02.056 · Cited by 95
Ionic Liquids as Solvents for Rhodium and Platinum Catalysts Used in Hydrosilylation Reaction
Zielinski, W., Kukawka, R., Maciejewski, H., & Smiglak, M. (2016) · Molecules · doi:10.3390/molecules21091115 · Cited by 30
Metadata
- Authors
- Belieres, J.-P., & Angell, C. A.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-04-07
- Volume
- 111
- Issue
- 18
- Pages
- 4926-4937
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2085118821
- Cited by
- 545
- References
- 1
- FWCI
- 9.09
- Type
- journal article
- Language
- en
- Open access
- closed
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