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X-ray photoelectron spectroscopy of trihalide ionic liquids: comparison to halide-based analogues, anion basicity and beam damage

Men, Shuang; Lovelock, Kevin; Licence, Peter

Authors

Shuang Men

Kevin Lovelock



Abstract

X-ray photoelectron spectroscopy is used to investigate two 1-octyl-3-methylimidazolium trihalide ionic liquids, with anions including triiodide and iododibromide. The electronic environment of each element present in ionic liquids studied herein is analysed and compared to their halide-based analogous. The anion basicity is compared based upon the measured N 1s binding energy. The iododibromide ionic liquid is studied as a representative sample to illustrate the beam damage effect. Due to the beam damage, there is a new formed bromine component observed. This effect is calculated and demonstrated for all elements present within the ionic liquid. It suggests that the beam induced decomposition caused a stoichiometric loss of bromine atom and iodine atom.

Citation

Men, S., Lovelock, K., & Licence, P. (2017). X-ray photoelectron spectroscopy of trihalide ionic liquids: comparison to halide-based analogues, anion basicity and beam damage. Chemical Physics Letters, 679, https://doi.org/10.1016/j.cplett.2017.05.010

Journal Article Type Article
Acceptance Date May 3, 2017
Online Publication Date May 5, 2017
Publication Date Jul 1, 2017
Deposit Date Sep 7, 2017
Publicly Available Date Mar 28, 2024
Journal Chemical Physics Letters
Print ISSN 0009-2614
Electronic ISSN 0009-2614
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 679
DOI https://doi.org/10.1016/j.cplett.2017.05.010
Keywords Ionic liquids, Anion basicity, Bromine component, Beam induced decomposition
Public URL https://nottingham-repository.worktribe.com/output/869719
Publisher URL http://www.sciencedirect.com/science/article/pii/S0009261417304487

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