New mesomorphic benzothiazol derivatives: Synthesis and characterization

被引：1

作者：

Teck-Ming Koh ^{[1
]}

Sie-Tiong Ha ^{[2
,3
]}

Guan-Yeow Yeap ^{[4
]}

Hong-Cheu Lin ^{[5
]}

机构：

[1] Faculty of Engineering & Science,Universiti Tunku Abdul Rahman,Jln Genting Klang,Setapak

[2] Faculty of Science,Universiti Tunku Abdul Rahman,Jln Universiti

[3] Centre for Biodiversity Research,Universiti Tunku Abdul Rahman,Jln Universiti

[4] Liquid Crystal Research Laboratory,School of Chemical Sciences,Universiti Sains Malaysia

[5] Department of Materials Science & Engineering,National Chiao Tung University

来源：

ChineseChemicalLetters | 2013年 / 24卷 / 10期

关键词：

Benzothiazole; Nematic; Smectic C; Mesomorphic;

D O I：

暂无

中图分类号：

O753.2 [];

学科分类号：

摘要：

In this paper, the synthesis of new mesomorphic benzothiazolyl derivatives, 6-ethoxy-2-[4-(4-alkyloxybenzoyloxy)benzylidenamino]benzothiazoles, is presented. The structures of the title compounds were elucidated using spectroscopic techniques, such as FT-IR, NMR(1H and13C),elemental analysis and EI-MS. The mesomorphic behaviours of these compounds were determined by differential scanning calorimetric and polarizing optical microscopic techniques. Compounds exhibited nematic and tilted smectic phases upon heating from crystal phase. An obvious odd-even effect was observed in this homologous series.

引用

页码：926 / 928

页数：3

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