Johnson, Oliver D., Wainwright, Stephen G., Whitwood, Adrian C. et al. (1 more author) (2023) Hydrogen-bonded liquid crystals formed from 4-alkoxystilbazoles and chlorophenols. CrystEngComm. pp. 2778-2788. ISSN 1466-8033
Abstract
Hydrogen-bonded complexes are formed between two chain lengths of 4-alkoxystilbazoles and six different chlorophenols. Single crystal structure determinations were possible for four of the complexes, all of which showed a similar dimeric motif in which two chlorophenols formed a loose back-to-back dimer with a stilbazole hydrogen-bonded at either side. Two of the complexes showed similarities in their three-dimensional packing. Liquid crystal properties were found for all complexes except those containing pentachlorophenol. The phase behaviour of the longer-chain dodecyloxystilbazole complexes was dominated by the observation of the smectic A phase, while both nematic and smectic A phases were found for the octyloxy homologues. The mesophase stability was appreciably lower in these new complexes when compared with fluorophenol analogues reported previously, attributed to a reduction in anisotropy on account of the effects of the greater size of chlorine compared with fluorine.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Royal Society of Chemistry 2023 |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 05 May 2023 16:10 |
Last Modified: | 16 Oct 2024 19:11 |
Published Version: | https://doi.org/10.1039/d3ce00266g |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1039/d3ce00266g |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:198976 |