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Structure, Interaction and Hydrogen Bond

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Structures and Interactions of Ionic Liquids

Part of the book series: Structure and Bonding ((STRUCTURE,volume 151))

Abstract

Ionic liquids (ILs), as green solvents, have attracted amazing interest and their potential applications have prompted a large amount of research and investment, and some of the results have been inspiring. In recent years, in combination with cations and anions, some new ILs have been synthesized in the laboratory. However, compared with simple solid salts, the structures of ILs are complicated and their properties vary considerably. It is thus very time consuming to explore ILs experimentally when facing the huge number of ionic combinations. A molecular-based understanding can reveal the quantitative correlation between structures and properties, and is thus an important subject in the study of ILs. The unusual complexity of ionic interactions renders molecular-based interpretations difficult and gives rise to controversies about the structure of the ILs. Herein we discuss the ion-pair, cluster and X-ray crystals structures and their relationship with the properties of many typical ILs, especially imidazolium-based. In the ILs, apart from the strong electrostatic forces, non-covalent H-bonds and van der Waals (dispersion, induce forces) are examined and are shown to have a decisive effect on the properties of ILs.

Beijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.

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Acknowledgments

This work was supported financially by the Projects of International Cooperation and Exchanges NSFC (No. 21210006, 21336002 and 21376242), Beijing Natural Science Foundation (No.2131005) and National High Technology Research and Development Program of China (863 Program) (No. 2012AA063001).

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  1. Institute of Process Engineering, Chinese Academy of Sciences, 353, Beijing, 100190, China

    Kun Dong, Qian Wang, Xingmei Lu, Qing Zhou & Suojiang Zhang

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  1. Kun Dong
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  5. Suojiang Zhang
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Correspondence to Xingmei Lu or Suojiang Zhang .

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  1. Beijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People's Republic of China

    Suojiang Zhang

  2. School of Chemistry and Chemical Enginee, Henan Normal University Key Laboratory of Green Chemical Media a, Xinxiang, Henan, People's Republic of China

    Jianji Wang

  3. Beijing Key Laboratory of Ionic Liquids, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People's Republic of China

    Xingmei Lu

  4. Beijing Key Laboratory of Ionic Liquids, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, People's Republic of China

    Qing Zhou

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Dong, K., Wang, Q., Lu, X., Zhou, Q., Zhang, S. (2014). Structure, Interaction and Hydrogen Bond. In: Zhang, S., Wang, J., Lu, X., Zhou, Q. (eds) Structures and Interactions of Ionic Liquids. Structure and Bonding, vol 151. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-38619-0_1

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