Ionic Switch Induced by a Rectangular-Hexagonal Phase Transition in Benzenammonium Columnar Liquid Crystals

Bartolome Soberats; Masafumi Yoshio; Takahiro Ichikawa; Xiangbing Zeng; Hiroyuki Ohno; Goran Ungar; Takashi Kato

doi:10.1021/jacs.5b09076

Ionic Switch Induced by a Rectangular-Hexagonal Phase Transition in Benzenammonium Columnar Liquid Crystals

Bartolome Soberats
, Masafumi Yoshio
, Takahiro Ichikawa
, Xiangbing Zeng
, Hiroyuki Ohno
, Goran Ungar
, Takashi Kato

The University of Tokyo
Japan Science and Technology Agency
Tokyo University of Agriculture and Technology
University of Sheffield
Zhejiang Sci-Tech University

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

83 Scopus citations

Abstract

We demonstrate switching of ionic conductivities in wedge-shaped liquid-crystalline (LC) ammonium salts. A thermoreversible phase transition between the rectangular columnar (Col_r) and hexagonal columnar (Col_h) phases is used for the switch. The ionic conductivities in the Col_h phase are about four orders of magnitude higher than those in the Col_r phase. The switching behavior of conductivity can be ascribed to the structural change of assembled ionic channels. X-ray experiments reveal a highly ordered packing of the ions in the Col_r phase, which prevents the ion transport.

Original language	English
Pages (from-to)	13212-13215
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	137
Issue number	41
DOIs	https://doi.org/10.1021/jacs.5b09076
State	Published - 21 Oct 2015
Externally published	Yes

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title = "Ionic Switch Induced by a Rectangular-Hexagonal Phase Transition in Benzenammonium Columnar Liquid Crystals",

abstract = "We demonstrate switching of ionic conductivities in wedge-shaped liquid-crystalline (LC) ammonium salts. A thermoreversible phase transition between the rectangular columnar (Colr) and hexagonal columnar (Colh) phases is used for the switch. The ionic conductivities in the Colh phase are about four orders of magnitude higher than those in the Colr phase. The switching behavior of conductivity can be ascribed to the structural change of assembled ionic channels. X-ray experiments reveal a highly ordered packing of the ions in the Colr phase, which prevents the ion transport.",

author = "Bartolome Soberats and Masafumi Yoshio and Takahiro Ichikawa and Xiangbing Zeng and Hiroyuki Ohno and Goran Ungar and Takashi Kato",

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T1 - Ionic Switch Induced by a Rectangular-Hexagonal Phase Transition in Benzenammonium Columnar Liquid Crystals

AU - Soberats, Bartolome

AU - Yoshio, Masafumi

AU - Ichikawa, Takahiro

AU - Zeng, Xiangbing

AU - Ohno, Hiroyuki

AU - Ungar, Goran

AU - Kato, Takashi

PY - 2015/10/21

Y1 - 2015/10/21

N2 - We demonstrate switching of ionic conductivities in wedge-shaped liquid-crystalline (LC) ammonium salts. A thermoreversible phase transition between the rectangular columnar (Colr) and hexagonal columnar (Colh) phases is used for the switch. The ionic conductivities in the Colh phase are about four orders of magnitude higher than those in the Colr phase. The switching behavior of conductivity can be ascribed to the structural change of assembled ionic channels. X-ray experiments reveal a highly ordered packing of the ions in the Colr phase, which prevents the ion transport.

AB - We demonstrate switching of ionic conductivities in wedge-shaped liquid-crystalline (LC) ammonium salts. A thermoreversible phase transition between the rectangular columnar (Colr) and hexagonal columnar (Colh) phases is used for the switch. The ionic conductivities in the Colh phase are about four orders of magnitude higher than those in the Colr phase. The switching behavior of conductivity can be ascribed to the structural change of assembled ionic channels. X-ray experiments reveal a highly ordered packing of the ions in the Colr phase, which prevents the ion transport.

UR - https://www.scopus.com/pages/publications/84945271746

U2 - 10.1021/jacs.5b09076

DO - 10.1021/jacs.5b09076

M3 - 文章

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AN - SCOPUS:84945271746

SN - 0002-7863

VL - 137

SP - 13212

EP - 13215

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 41

ER -

Ionic Switch Induced by a Rectangular-Hexagonal Phase Transition in Benzenammonium Columnar Liquid Crystals

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