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Title: Double helical structure of the twist-bend nematic phase investigated by resonant X-ray scattering at the carbon and sulfur K-edges

Abstract

The mesogenic dimer displaying nematic and N TB phases was investigated by resonant X-ray scattering at both C and S absorption K-edges and supported by single X-ray crystallography. In the crystal resonant studies revealed the forbidden reflection in non-resonant diffraction similar to that found in the NTB phase. Finally, the lack of a second harmonic in both C and S resonant X-ray scattering supports the double helical structure of the twist-bend nematic phase.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [4];  [4];  [2];  [4]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); Univ. of Warsaw (Poland)
  2. Univ. of York, Heslington, York (United Kingdom)
  3. Univ. of Warsaw (Poland)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Polish National Science Centre (NCN); Engineering and Physical Sciences Research Council (EPSRC); National Institutes of Health (NIH)
OSTI Identifier:
1619107
Alternate Identifier(s):
OSTI ID: 1483701
Grant/Contract Number:  
AC02-05CH11231; 2016/22/A/ST5/00319; EP/M020584/1
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Soft Matter
Additional Journal Information:
Journal Volume: 14; Journal Issue: 48; Journal ID: ISSN 1744-683X
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Salamończyk, Mirosław, Mandle, Richard J., Makal, Anna, Liebman-Peláez, Alexander, Feng, Jun, Goodby, John W., and Zhu, Chenhui. Double helical structure of the twist-bend nematic phase investigated by resonant X-ray scattering at the carbon and sulfur K-edges. United States: N. p., 2018. Web. doi:10.1039/c8sm01215f.
Salamończyk, Mirosław, Mandle, Richard J., Makal, Anna, Liebman-Peláez, Alexander, Feng, Jun, Goodby, John W., & Zhu, Chenhui. Double helical structure of the twist-bend nematic phase investigated by resonant X-ray scattering at the carbon and sulfur K-edges. United States. https://doi.org/10.1039/c8sm01215f
Salamończyk, Mirosław, Mandle, Richard J., Makal, Anna, Liebman-Peláez, Alexander, Feng, Jun, Goodby, John W., and Zhu, Chenhui. Sat . "Double helical structure of the twist-bend nematic phase investigated by resonant X-ray scattering at the carbon and sulfur K-edges". United States. https://doi.org/10.1039/c8sm01215f. https://www.osti.gov/servlets/purl/1619107.
@article{osti_1619107,
title = {Double helical structure of the twist-bend nematic phase investigated by resonant X-ray scattering at the carbon and sulfur K-edges},
author = {Salamończyk, Mirosław and Mandle, Richard J. and Makal, Anna and Liebman-Peláez, Alexander and Feng, Jun and Goodby, John W. and Zhu, Chenhui},
abstractNote = {The mesogenic dimer displaying nematic and NTB phases was investigated by resonant X-ray scattering at both C and S absorption K-edges and supported by single X-ray crystallography. In the crystal resonant studies revealed the forbidden reflection in non-resonant diffraction similar to that found in the NTB phase. Finally, the lack of a second harmonic in both C and S resonant X-ray scattering supports the double helical structure of the twist-bend nematic phase.},
doi = {10.1039/c8sm01215f},
url = {https://www.osti.gov/biblio/1619107}, journal = {Soft Matter},
issn = {1744-683X},
number = 48,
volume = 14,
place = {United States},
year = {2018},
month = {10}
}

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Free Publicly Available Full Text
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Cited by: 4 works
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Works referenced in this record:

Structural Characterization of Various Chiral Smectic- C Phases by Resonant X-Ray Scattering
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Induced smectic phase in binary mixtures of twist-bend nematogens
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Chiral heliconical ground state of nanoscale pitch in a nematic liquid crystal of achiral molecular dimers
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journal, January 2017


Molecular organization in the twist–bend nematic phase by resonant X-ray scattering at the Se K-edge and by SAXS, WAXS and GIXRD
journal, January 2017


Do the short helices exist in the nematic TB phase?
journal, December 2014


    Works referencing / citing this record:

    Pretransitional behavior of viscoelastic parameters at the nematic to twist-bend nematic phase transition in flexible n -mers
    journal, January 2019


    Twist-bend nematic liquid crystals based on thioether linkage
    journal, January 2019


    Order parameters, orientational distribution functions and heliconical tilt angles of oligomeric liquid crystals
    journal, January 2019


    Sulfur-linked cyanobiphenyl-based liquid crystal dimers and the twist-bend nematic phase
    text, January 2019