Synthesis of Schiff Base-type Liquid Crystalline Crown Ethers Containing Dibenzo-18-Crown-6 Unit

被引：0
|
作者：
张淑媛
何可可
郑世军
唐斯甫
张晓静
李自法
机构：
[1] Department of Chemistry
[2] Zhengzhou University
[3] College of Materials Engineering
[4] Zhengzhou University Zhengzhou
[5] Henan 450052
[6] China
来源：
Chinese Journal of Chemistry | 2004年 / 04期
关键词：
Schiff base; liquid crystalline crown ether; thermotropic liquid crystal; phase transition;
D O I：
暂无
中图分类号：
O753.2 [];
学科分类号：
摘要：
The synthesis and characterization of novel Schiff base liquid crystalline crown ethers prepared from the inter-mediates 4-(4-alkoxylbiphenyl-4-carbonyl)benzaldehyde, cis- and trans-4,4-diaminodibenzo-18-crown-6 are de-scribed. The structure of these compounds have been well characterized by elemental analysis, IR, 1H NMR and MS spectroscopy. The liquid-crystalline behavior of these compounds was also inverstigated by differential scanning calorimetry (DSC), polarizing optical microscopy (POM) with a heating stage and polarimetric analysis.
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页码：395 / 399 +319
页数：6
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