Aromatic Heterocycles Used as Terminal Groups of Calamitic Liquid Crystals

被引：6

作者：

Liu, Chih-Yin ^{[1
]}

Huang, Chin-Hsu ^{[1
]}

Cheng, Pao-Swu ^{[1
]}

Tsai, Wen-Liang ^{[1
]}

机构：

[1] Natl Kaohsiung Normal Univ, Dept Chem, Kaohsiung 824, Taiwan

来源：

JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 2012年 / 59卷 / 01期

关键词：

Pyridinemethanol; Terminal group; Liquid crystals; Smectic C phase; MESOGENIC PROPERTIES; BEHAVIOR; MOIETY;

D O I：

10.1002/jccs.201100220

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three series of compounds 1-21 were prepared by using 2-, 3-, and 4-pyridinemethanol as terminal group of calamitic liquid crystals. These compounds have some similarities in their phase behavior. They all exhibit SmA phase. A tilt smectic phase, SmC, will be formed when their flexible alkoxy chain is longer than hexoxy group. The profound difference between them is that the compounds 15-17 possess a short temperature range of N phase. The compounds 3 and 6 have the widest SmA phase, up to 94 degrees C, and SmC phase, up to 46 degrees C, respectively.

引用

页码：81 / 86

页数：6

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