Properties of liquid crystals and Cu2+ recognition based on Schiff bases

被引：2
|
作者：
Liu, Zhilian [1 ,2 ]
Yu, Zhenning [1 ]
Zhang, Jian [1 ]
Zhang, Shuxiang [1 ,2 ]
机构：
[1] Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China
[2] Shandong Key Lab Fluorine Chem & Chem Engn Mat, Jinan, Peoples R China
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2016年 / 624卷 / 01期
关键词：
recognition; Schiff base; Fluorine; liquid crystals; Cu2+; MESOMORPHIC PROPERTIES; CHAIN POLYMERS; COMPLEXES; CORE;
D O I：
10.1080/15421406.2015.1017310
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two series of new Schiff base compounds were synthesized. For Schiff base compounds with a pyridine nitrogen atom in 4-position (7a-e), their supramolecular hydrogen bonding complexes show good liquid crystal properties. However, no liquid crystal property is observed for 8a-e. Results of theoretical calculations demonstrate that it is the intermolecular hydrogen bond of Schiff base compounds (8a-e) that prevents the formation of supramolecular hydrogen bonding. The Schiff base compounds, with terminal alkoxy chains, can recognize Cu2+ selectively with a color change. Nevertheless, others cannot recognize Cu2+.
引用
收藏
页码：11 / 19
页数：9
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