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Electronic Effects in the Structure of 1-Ethyl-3-Methylimidazolium Ionic Liquids

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Abstract

In this study, ten 1-ethyl-3-methylimidazolium ionic liquids are analyzed by X-ray photoelectron spectroscopy. A reliable charge correction method is established based upon the binding energy difference between cationic N 1s and C2 1s. It is found that the Caliphatic 1s component is applicable for charge correction only if the Kamlet-Taft hydrogen bond acceptor ability value is larger than 0.77. The electronic environment of nitrogen and sulfur atoms is demonstrated in detail. The impact of the substituent on the binding energy of P 2p and B 1s is discussed.

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ACKNOWLEDGMENTS

SM acknowledges Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics (Beijing Technology and Business University, Beijing 100048, China) for the award of an Open Fund (QETHSP2020013).

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Authors and Affiliations

  1. School of Material Science and Engineering Shenyang Ligong University, 110159, Shenyang, P. R. China

    Li Wei, Shengqun Wang & Shuang Men

  2. Ningbo Wintop Advanced Material Co. Ltd., 315311, Ningbo, P. R. China

    Li Wei

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  1. Li Wei
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  2. Shengqun Wang
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  3. Shuang Men
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Correspondence to Shuang Men.

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Li Wei, Wang, S. & Men, S. Electronic Effects in the Structure of 1-Ethyl-3-Methylimidazolium Ionic Liquids. Russ. J. Phys. Chem. 95, 736–740 (2021). https://doi.org/10.1134/S0036024421040270

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  • DOI: https://doi.org/10.1134/S0036024421040270

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