Understanding the polarity of ionic liquids

M. A. Ab Rani, A. Brant, L. Crowhurst, A. Dolan, M. Lui, Nur Hasyareeda Hassan, J. P. Hallett, P. A. Hunt, H. Niedermeyer, J. M. Perez-Arlandis, M. Schrems, T. Welton, R. Wilding

Research output: Contribution to journalArticle

304 Citations (Scopus)

Abstract

The polarities of a wide range of ionic liquids have been determined using the Kamlet-Taft empirical polarity scales α, β and π*, with the dye set Reichardt's Dye, N,N-diethyl-4-nitroaniline and 4-nitroaniline. These have been compared to measurements of these parameters with different dye sets and to different polarity scales. The results emphasise the importance of recognising the role that the nature of the solute plays in determining these scales. It is particularly noted that polarity scales based upon charged solutes can give very different values for the polarity of ionic liquids compared to those based upon neutral probes. Finally, the effects of commonplace impurities in ionic liquids are reported.

Original languageEnglish
Pages (from-to)16831-16840
Number of pages10
JournalPhysical Chemistry Chemical Physics
Volume13
Issue number37
DOIs
Publication statusPublished - 7 Oct 2011
Externally publishedYes

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Ionic Liquids
polarity
Coloring Agents
liquids
dyes
solutes
Impurities
impurities
probes
4-nitroaniline

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Ab Rani, M. A., Brant, A., Crowhurst, L., Dolan, A., Lui, M., Hassan, N. H., ... Wilding, R. (2011). Understanding the polarity of ionic liquids. Physical Chemistry Chemical Physics, 13(37), 16831-16840. https://doi.org/10.1039/c1cp21262a

Understanding the polarity of ionic liquids. / Ab Rani, M. A.; Brant, A.; Crowhurst, L.; Dolan, A.; Lui, M.; Hassan, Nur Hasyareeda; Hallett, J. P.; Hunt, P. A.; Niedermeyer, H.; Perez-Arlandis, J. M.; Schrems, M.; Welton, T.; Wilding, R.

In: Physical Chemistry Chemical Physics, Vol. 13, No. 37, 07.10.2011, p. 16831-16840.

Research output: Contribution to journalArticle

Ab Rani, MA, Brant, A, Crowhurst, L, Dolan, A, Lui, M, Hassan, NH, Hallett, JP, Hunt, PA, Niedermeyer, H, Perez-Arlandis, JM, Schrems, M, Welton, T & Wilding, R 2011, 'Understanding the polarity of ionic liquids', Physical Chemistry Chemical Physics, vol. 13, no. 37, pp. 16831-16840. https://doi.org/10.1039/c1cp21262a
Ab Rani MA, Brant A, Crowhurst L, Dolan A, Lui M, Hassan NH et al. Understanding the polarity of ionic liquids. Physical Chemistry Chemical Physics. 2011 Oct 7;13(37):16831-16840. https://doi.org/10.1039/c1cp21262a
Ab Rani, M. A. ; Brant, A. ; Crowhurst, L. ; Dolan, A. ; Lui, M. ; Hassan, Nur Hasyareeda ; Hallett, J. P. ; Hunt, P. A. ; Niedermeyer, H. ; Perez-Arlandis, J. M. ; Schrems, M. ; Welton, T. ; Wilding, R. / Understanding the polarity of ionic liquids. In: Physical Chemistry Chemical Physics. 2011 ; Vol. 13, No. 37. pp. 16831-16840.
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