Optically Active Ketones with Intramolecular Hydrogen Bond

被引：12

作者：

Kobayashi, S. ^{[1
]}

Ishibashi, S. ^{[1
]}

Tsuru, S. ^{[1
]}

机构：

[1] Nippon Telegraph & Tel Corp, Appl Elect Labs, Musashino, Tokyo 180, Japan

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1991年 / 202卷

关键词：

ferroelectrics; ketones; hydrogen bond; lactic acid;

D O I：

10.1080/00268949108035662

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

New ferroelectric liquid crystal compounds having an optically active alkanoyl group on one side and a chiral group derived from lactic acid on the other side of the core were synthesized. The new compounds with a three-ring core exhibit very large spontaneous polarization, when the signs of the spontaneous polarization due to the two chiral groups are the same. In particular, the compounds with an intramolecular hydrogen bond show larger spontaneous polarization as high as 1130 nC/cm(2). The spontaneous polarization values are much greater than the sums of the spontaneous polarization for corresponding compounds having one of the two chiral groups. The dopant properties of the new compounds were also studied.

引用

页码：103 / 109

页数：7

共 4 条

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[2] DEPENDENCE OF SPONTANEOUS POLARIZATION, ROTATIONAL VISCOSITY AND HELICAL PITCH OF SMECTIC-C-STAR COMPOUNDS ON THE ENANTIOMERIC EXCESS [J].

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[3]

Kobayashi S., 1990, Molecular Crystals and Liquid Crystals Letters Section, V7, P53

[4] DIRECT METHOD WITH TRIANGULAR WAVES FOR MEASURING SPONTANEOUS POLARIZATION IN FERROELECTRIC LIQUID-CRYSTALS [J].

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