BROWSE

Related Researcher

Author's Photo

Shin, Tae Joo
UNIST Central Research Facilities (UCRF)
Research Interests
  • Synchrotron Radiation Application Researches

ITEM VIEW & DOWNLOAD

Ferroelectrically Switching Helical Columnar Assembly Comprising Cisoid Conformers of a 1,2,3-Triazole-based Liquid Crystal

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Ferroelectrically Switching Helical Columnar Assembly Comprising Cisoid Conformers of a 1,2,3-Triazole-based Liquid Crystal
Author
Manh Linh NguyenByun, JaedukKim, SuwoongHyun, June WonHur, KahyunShin, Tae JooCho, Byoung-Ki
Issue Date
2019-02
Publisher
WILEY-V C H VERLAG GMBH
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.58, no.9, pp.2749 - 2753
Abstract
The 1,2,3-triazole molecule, which is a product of click chemistry, possesses a high dipole moment and can be a useful polar motif for ferroelectric columnar liquid crystal (LC) materials-though it has not been used to date. Herein, we report the helical assembly and ferroelectric switching properties of a columnar liquid crystal comprising a naphthalene core and 1,2,3-triazolyl linkages. The molecule assembles into a double-stranded helical columnar LC structure (Col(hel)). The X-ray simulations of cisoid and transoid columnar models suggest that the helical assembly comprises cisoid conformers with a non-zero dipole moment. The helical columns in the Col(hel) phase are aligned homeotropically under an electric field. The ferroelectric switching of the axial polarization can be observed in the temperature range of 105-115 degrees C in the Col(hel) phase, wherein the triazolyl hydrogen bonding along the column axis is weakened. The ferroelectric switching event is attributed to the rotation of the polar triazolyl units in response to the electric field.
URI
https://scholarworks.unist.ac.kr/handle/201301/26481
URL
https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201813195
DOI
10.1002/anie.201813195
ISSN
1433-7851
Appears in Collections:
UCRF_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU