A Twist-Bend Nematic (N<inf>TB</inf>) Phase of Chiral Materials

Ewa Gorecka; Nataša Vaupotič; Anna Zep; Damian Pociecha; Jun Yoshioka; Jun Yamamoto; Hideo Takezoe

doi:10.1002/anie.201502440

A Twist-Bend Nematic (N<inf>TB</inf>) Phase of Chiral Materials

Ewa Gorecka^*, Nataša Vaupotič, Anna Zep, Damian Pociecha, Jun Yoshioka, Jun Yamamoto, Hideo Takezoe

^*Corresponding author for this work

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

92 Citations (Scopus)

Abstract

New chiral dimers consisting of a rod-like and cholesterol mesogenic units are reported to form a chiral twist-bend nematic phase (N<inf>TB</inf>) with heliconical structure. The compressibility of the N<inf>TB</inf> phase made of bent dimers was found to be as large as in smectic phases, which is consistent with the nanoperiodic structure of the N<inf>TB</inf> phase. The atomic force microscopy observations in chiral bent dimers revealed a periodicity of about 50 nm, which is significantly larger than the one reported previously for non-chiral compounds (ca. 10 nm).

Original language	English
Pages (from-to)	10155-10159
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	54
Issue number	35
DOIs	https://doi.org/10.1002/anie.201502440
Publication status	Published - 2015 Aug 1

Keywords

atomic force microscopy
chirality
liquid crystals
spontaneous symmetry breaking
X-ray diffraction

ASJC Scopus subject areas

Chemistry(all)
Catalysis

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10.1002/anie.201502440

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abstract = "New chiral dimers consisting of a rod-like and cholesterol mesogenic units are reported to form a chiral twist-bend nematic phase (NTB) with heliconical structure. The compressibility of the NTB phase made of bent dimers was found to be as large as in smectic phases, which is consistent with the nanoperiodic structure of the NTB phase. The atomic force microscopy observations in chiral bent dimers revealed a periodicity of about 50 nm, which is significantly larger than the one reported previously for non-chiral compounds (ca. 10 nm).",

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AU - Gorecka, Ewa

AU - Vaupotič, Nataša

AU - Zep, Anna

AU - Pociecha, Damian

AU - Yoshioka, Jun

AU - Yamamoto, Jun

AU - Takezoe, Hideo

PY - 2015/8/1

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AB - New chiral dimers consisting of a rod-like and cholesterol mesogenic units are reported to form a chiral twist-bend nematic phase (NTB) with heliconical structure. The compressibility of the NTB phase made of bent dimers was found to be as large as in smectic phases, which is consistent with the nanoperiodic structure of the NTB phase. The atomic force microscopy observations in chiral bent dimers revealed a periodicity of about 50 nm, which is significantly larger than the one reported previously for non-chiral compounds (ca. 10 nm).

KW - atomic force microscopy

KW - chirality

KW - liquid crystals

KW - spontaneous symmetry breaking

KW - X-ray diffraction

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A Twist-Bend Nematic (N<inf>TB</inf>) Phase of Chiral Materials

Abstract

Keywords

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