Paramagnetic FLCs containing an organic radical component

被引：33

作者：

Ikuma, Naohiko

Tamura, Rui ^{[1
]}

Masaki, Kazuyoshi

Uchida, Yoshiaki

Shimono, Satoshi

Yamauchi, Jun

Aoki, Yoshio

Nohira, Hiroyuki

机构：

[1] Kyoto Univ, Grad Sch Global Environm Studies, Kyoto 6068501, Japan

[2] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan

[3] Kyoto Univ, Grad Sch Sci, Kyoto 6068501, Japan

[4] Saitama Univ, Fac Engn, Saitama 3388570, Japan

来源：

FERROELECTRICS | 2006年 / 343卷

关键词：

paramagnetic chiral liquid crystals; ferroelectricity; nitroxyl radical; chiral molecular magnet; dichiral nitroxide;

D O I：

10.1080/00150190600962192

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have prepared new all-organic ferroelectric liquid crystalline materials containing a polar and dichiral cyclic-nitroxide unit within the rigid core. These compounds show distinct ferroelectricity in SmC* phases. The spontaneous polarization (Ps) has been measured by the triangular wave method and the tilt angle has been determined by polarizing microscopy. The relationship between the Ps and the molecular structure has been investigated by the MO calculations. The tilt angles, which are estimated from the layer distances of the SmC* phases determined by X-ray diffraction data and the molecular lengths calculated by the MO calculations, are consistent with those by polarizing microscopy.

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页码：119 / 125

页数：7

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