Mandle, Richard orcid.org/0000-0001-9816-9661 and Goodby, John William (2018) An experimental and computational study of calamitic and bimesogenic liquid crystals incorporating an optically active [2,2]-paracyclophane. LIQUID CRYSTALS. pp. 1567-1573. ISSN 1366-5855
Abstract
Two liquid-crystalline materials containing an optically active (R)-4-hydroxy-[2,2]-paracyclophane group were prepared, one in which the chiral group is a bulky terminal unit and one in which it forms part of a terphenyl-like mesogenic unit. Both materials exhibit monotropic chiral nematic phases. Partial phase diagrams were constructed for mixtures of both materials with 5CB, allowing us to extrapolate pitch lengths and helical twisting power values (HTP) for each material. The HTP value of the material with a ‘locked’ paracyclophane is 70% higher than that of a ‘free’ paracyclophane and this is rationalised as being due to the reduction in conformational freedom of the former material relative to the later.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 The Author(s). |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Funding Information: | Funder Grant number EPSRC EP/M020584/1 |
Depositing User: | Pure (York) |
Date Deposited: | 27 Mar 2018 16:30 |
Last Modified: | 07 Feb 2025 00:19 |
Published Version: | https://doi.org/10.1080/02678292.2018.1453559 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1080/02678292.2018.1453559 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:129066 |
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Description: An experimental and computational study of calamitic and bimesogenic liquid crystals incorporating an optically active 2 2 paracyclophane
Licence: CC-BY 2.5