Combined Microscopy, Calorimetry and X-ray Scattering Study of Fluorinated Dimesogens

Richard Mandle; Stephen James Cowling; John William Goodby

doi:10.1038/s41598-017-12799-1

Combined Microscopy, Calorimetry and X-ray Scattering Study of Fluorinated Dimesogens

Richard Mandle, Stephen James Cowling, John William Goodby

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The material FDO11DFCB3 (compound 2 in this work) remains the only example of a liquid-crystalline material to exhibit a phase transition from the heliconical twist-bend phase into a lamellar smectic A mesophase, additionally this material exhibits a previously unidentified mesophase. We have prepared and characterised several homologues of this compound, with each material subjected to an in-depth analysis by optical microscopy, calorimetry and small angle X-ray scattering studies. Despite FDO11DFCB3 being similar in chemical structure to the novel materials presented herein its liquid-crystalline behaviour is rather different, indicating an unexpected sensitivity of the twist-bend phase to molecular structure.

Original language	English
Article number	13323
Number of pages	9
Journal	Scientific Reports
Volume	7
DOIs	https://doi.org/10.1038/s41598-017-12799-1
Publication status	Published - 17 Oct 2017

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10.1038/s41598-017-12799-1

34 - Sci Rep, fluorodimers3, 2017 (print)
© The Author(s) 2017
Final published version, 3.43 MBLicence: CC BY

1 Finished

Nanoscale Engineering of Dyes for Liquid Crystal Dyes in Device Applications
Saez, I. M. (Principal investigator), Cowling, S. J. (Co-investigator), Goodby, J. W. (Co-investigator) & Moore, J. N. (Co-investigator)
EPSRC
1/06/15 → 30/11/18
Project: Research project (funded) › Research

Dataset for: Combined Microscopy, Calorimetry and X-ray Scattering Study of Fluorinated Dimesogens
Mandle, R. (Creator), University of York, 15 Sept 2017
DOI: 10.15124/8a250a3a-f50d-4b63-b066-3dd82d7ac9d3
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title = "Combined Microscopy, Calorimetry and X-ray Scattering Study of Fluorinated Dimesogens",

abstract = "The material FDO11DFCB3 (compound 2 in this work) remains the only example of a liquid-crystalline material to exhibit a phase transition from the heliconical twist-bend phase into a lamellar smectic A mesophase, additionally this material exhibits a previously unidentified mesophase. We have prepared and characterised several homologues of this compound, with each material subjected to an in-depth analysis by optical microscopy, calorimetry and small angle X-ray scattering studies. Despite FDO11DFCB3 being similar in chemical structure to the novel materials presented herein its liquid-crystalline behaviour is rather different, indicating an unexpected sensitivity of the twist-bend phase to molecular structure. ",

author = "Richard Mandle and Cowling, {Stephen James} and Goodby, {John William}",

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AU - Cowling, Stephen James

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N2 - The material FDO11DFCB3 (compound 2 in this work) remains the only example of a liquid-crystalline material to exhibit a phase transition from the heliconical twist-bend phase into a lamellar smectic A mesophase, additionally this material exhibits a previously unidentified mesophase. We have prepared and characterised several homologues of this compound, with each material subjected to an in-depth analysis by optical microscopy, calorimetry and small angle X-ray scattering studies. Despite FDO11DFCB3 being similar in chemical structure to the novel materials presented herein its liquid-crystalline behaviour is rather different, indicating an unexpected sensitivity of the twist-bend phase to molecular structure.

AB - The material FDO11DFCB3 (compound 2 in this work) remains the only example of a liquid-crystalline material to exhibit a phase transition from the heliconical twist-bend phase into a lamellar smectic A mesophase, additionally this material exhibits a previously unidentified mesophase. We have prepared and characterised several homologues of this compound, with each material subjected to an in-depth analysis by optical microscopy, calorimetry and small angle X-ray scattering studies. Despite FDO11DFCB3 being similar in chemical structure to the novel materials presented herein its liquid-crystalline behaviour is rather different, indicating an unexpected sensitivity of the twist-bend phase to molecular structure.

U2 - 10.1038/s41598-017-12799-1

DO - 10.1038/s41598-017-12799-1

M3 - Article

SN - 2045-2322

VL - 7

JO - Scientific Reports

JF - Scientific Reports

M1 - 13323

ER -

Combined Microscopy, Calorimetry and X-ray Scattering Study of Fluorinated Dimesogens

Abstract

Bibliographical note

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Projects

Nanoscale Engineering of Dyes for Liquid Crystal Dyes in Device Applications

Datasets

Dataset for: Combined Microscopy, Calorimetry and X-ray Scattering Study of Fluorinated Dimesogens

Cite this