Smoll, Eric J., Purcell, Simon M., D'Andrea, Lucia et al. (5 more authors) (2019) Probing Conformational Heterogeneity at the Ionic Liquid-Vacuum Interface by Reactive-Atom Scattering. JOURNAL OF PHYSICAL CHEMISTRY LETTERS. pp. 156-163. ISSN 1948-7185
Abstract
The atomic-level description of liquid interfaces has lagged behind that of solid crystalline surfaces because existing experimental techniques have been limited in their capability to report molecular structure in a fluctuating liquid interfacial layer. We have moved toward a more detailed experimental description of the gas−liquid interface by studying the F-atom scattering dynamics on a common ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide. When given contrast by deuterium labeling, the yield and dynamical behavior of reactively scattered HF isotopologues can resolve distinct signatures from the cation butyl, methyl, and ring groups, which help to quantify the relative populations of cation conformations at the liquid−vacuum interface. These results demonstrate the importance of molecular organization in driving sitespecific reactions at the extreme outer regions of the gas−liquid interface.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 American Chemical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Funding Information: | Funder Grant number EPSRC EP/K032062/1 |
Depositing User: | Pure (York) |
Date Deposited: | 18 Jan 2019 09:30 |
Last Modified: | 21 Dec 2024 00:17 |
Published Version: | https://doi.org/10.1021/acs.jpclett.8b02920 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1021/acs.jpclett.8b02920 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:141235 |