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    Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Solid State Chemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Solid State Chemistry, 308, 2022 DOI: 10.1016/j.jssc.2022.122903

    Accepted author manuscript, 1.67 MB, PDF document

    Embargo ends: 18/01/23

    Available under license: CC BY-NC-ND: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

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Electron and proton conducting framework organic salt single crystals

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
Article number122903
<mark>Journal publication date</mark>30/04/2022
<mark>Journal</mark>Journal of Solid State Chemistry
Volume308
Number of pages9
Publication StatusPublished
Early online date18/01/22
<mark>Original language</mark>English

Abstract

Organic molecular assemblies that can conduct both electrons and protons are attractive materials, as they have important applications in organic electronics and fuel cells. Herein, two three-dimensional conducting framework organic salt (CFOS) single crystals with excellent electron and proton conductivity have been successfully synthesized by a simple drop-wise addition and crystallization method. The packing structure of CFOSs can be controlled through changing the central atom of building unit from a single carbon atom to a silicon atom, which in turn affects the electron and proton conductivity of CFOSs. Furthermore, the theoretical calculation results show that electron conduction occurs through the 3D super stacked π-conjugated network pathways whereas the proton conduction occurs via a novel combination of Grotthus and vehicular diffusion. The general design strategy and intuitive results in this work will provide practically useful insights in the preparation of new conducting framework organic salt single crystals with tuneable structures for specific applications.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Journal of Solid State Chemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Solid State Chemistry, 308, 2022 DOI: 10.1016/j.jssc.2022.122903