Email this article X-ray Photoelectron Spectroscopy of Imidazolium-Based Zwitterions: The Intramolecular Charge-Transfer Effect
- Authors: Shuang Men 1,2, Yujuan Jin 3
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Affiliations:
- School of Material Science and Engineering, Shenyang Ligong University
- Institute of Applied Ecology, Chinese Academy of Sciences
- School of Materials and Mechanical Engineering, Beijing Technology and Business University
- Issue: Vol 92, No 11 (2018)
- Pages: 2337-2340
- Section: Photochemistry and Magnetochemistry
- URL: https://journals.rcsi.science/0036-0244/article/view/170225
- DOI: https://doi.org/10.1134/S0036024418110389
- ID: 170225
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Abstract
We investigate the imidazolium-based zwitterions, 1-butyl-3-methylimidazolium-2-pentafluorophosphate, together with 1-butyl-3-methylimidazolium hexafluorophosphate using X-ray photoelectron spectroscopy. The intramolecular charge-transfer from the negative headgroup to the positive headgroup is revealed in detail. In the case of the zwitterions, due to the intense charge-transfer effect, binding energies of N 1s and C2 1s are both lower; whilst P 2p is higher, compared to those of 1-butyl-3-methylimidazolium hexafluorophosphate. Such effect is found negligible for F 1s spectra. It is found that F 1s binding energies for the two samples are the same.
About the authors
Shuang Men
School of Material Science and Engineering, Shenyang Ligong University; Institute of Applied Ecology, Chinese Academy of Sciences
Email: jinyujuan@th.btbu.edu.cn
China, Shenyang, 110159; Shenyang, 110016
Yujuan Jin
School of Materials and Mechanical Engineering, Beijing Technology and Business University
Author for correspondence.
Email: jinyujuan@th.btbu.edu.cn
China, Beijing, 100048
