Mandle, RJ orcid.org/0000-0001-9816-9661 (2022) Supramolecular ferroelectric nematic materials. Liquid Crystals, 49 (15). pp. 2019-2026. ISSN 0267-8292
Abstract
The discovery of a new nematic phase variant with polar order and ferroelectricity, the NF phase, is a significant milestone in soft matter research. Herein we describe the preparation of hydrogen-bonded complexes between 4-(2,4-dimethoxybenzoyloxy)benzoic acid and either 4-nitropyridine or 3-fluoro-4-nitropyridine, these being analogous in structure to the archetypal NF material RM734. Complexes were isolated using a semi-automated process we term Machine Vision Aided Crystallisation. We find these complexes exhibit classical and polar (NF) nematic phases despite the large reduction in electric dipole moment that results from swapping a phenyl ring for 4-pyridyl. DFT calculations support the hypothesis that the onset of polar order is not simply a product of electric dipole magnitude, but rather results from more subtle interactions between regions of opposing electrostatic potential.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Ferroelectric, hydrogen-bond, liquid crystals, supermolecular |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Soft Matter Physics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Jan 2023 11:38 |
Last Modified: | 25 Jun 2023 23:13 |
Status: | Published |
Publisher: | Taylor & Francis |
Identification Number: | 10.1080/02678292.2022.2145380 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:195269 |
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