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Effect of the Structure of Dicationic Pyridinium Ionic Liquids on Processes of Ionic Association and the Electrical Conductivity of Their Solutions in Acetonitrile

  • COLLOID CHEMISTRY AND ELECTROCHEMISTRY
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Abstract

An investigation is performed of the electrical conductivity of a number of dicationic ionic liquids based on 3‑methylpyridinium and inorganic anions in acetonitrile. The Lee–Wheaton procedure is used to calculate constants Ka of ion association, the limiting molar electrical conductivity (λ0), and the Gibbs energy of association (ΔG) in solutions. It is shown that the nature and size of the anion are a key influence on the association of the studied ionic liquids. It is established that dicationic 3-methylpyridinium salts with bromide anions are more associated in solution than corresponding hexafluorophosphates or tetrafluoroborates.

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  1. Tver State University, 170002, Tver, Russia

    O. E. Zhuravlev

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Zhuravlev, O.E. Effect of the Structure of Dicationic Pyridinium Ionic Liquids on Processes of Ionic Association and the Electrical Conductivity of Their Solutions in Acetonitrile. Russ. J. Phys. Chem. 95, 2503–2508 (2021). https://doi.org/10.1134/S0036024421120244

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  • DOI: https://doi.org/10.1134/S0036024421120244

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