Columnar Liquid Crystal with a Spontaneous Polarization along the Columnar Axis

被引：63

作者：

Miyajima, Daigo ^{[2
]}

Araoka, Fumito ^{[1
]}

Takezoe, Hideo ^{[1
]}

Kim, Jungeun ^{[3
]}

Kato, Kenichi ^{[4
]}

Takata, Masaki ^{[3
,4
]}

Aida, Takuzo ^{[2
]}

机构：

[1] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan

[2] Univ Tokyo, Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

[3] Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795198, Japan

[4] RIKEN SPring 8 Ctr, Sayo, Hyogo, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 25期

关键词：

PHASE;

D O I：

10.1021/ja101866e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A fan-shaped molecule (2), carrying hydrogen-bonding amide groups in proximity to its polar aromatic core, self-assembles into a columnar liquid crystalline mesophase, which unprecedentedly possesses a spontaneous macroscopic polarization along the columnar axis. Due to its polar nature, the mesophase displays a signal of second harmonic generation (SHG), which disappears on phase transition to an isotropic melt and then retrieves its original intensity on subsequent cooling.

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收藏

页码：8530 / +

页数：3

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