Russian Journal of Physical Chemistry A

, Volume 93, Issue 13, pp 2676–2680 | Cite as

X-ray Photoelectron Spectroscopy of 1-Butyl-2,3-Dimethylimidazolium Ionic Liquids: Charge Correction Methods and Electronic Environment of the Anion

  • Li Wei
  • Shuang MenEmail author


In this study, six 1-butyl-2,3-dimethylimidazolium ionic liquids are analyzed by X-ray photoelectron spectroscopy. A reliable fitting model is developed for the C 1s region. The charge correction method is discussed in detail. It suggests that the aliphatic carbon component can be used as an internal reference only if the Kamlet-Taft hydrogen bond acceptor ability value is larger than 0.57. The electronic environment of each anion-based component is compared to that of 1-butyl-3-methylimidazolium ionic liquids. It is found that noticeable binding energy shift can be observed in the spectra of S 2p for [TfO] and P 2p for [PF6].


X-ray photoelectron spectroscopy ionic liquids charge correction 



The authors thank Liaoning Provincial Foundation of Science and Technology (20180550482) for financial support.


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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.School of Material Science and Engineering, Shenyang Ligong UniversityShenyangP. R. China
  2. 2.Ningbo Wintop Advanced Material Co. Ltd.NingboP. R. China

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