Synthesis and mesomorphic properties of novel columnar liquid crystals based on polytopic gallic ethers with multiple-hydrogen bonding cyanuric cores

被引：8
作者：
Guo, Hongyu [1 ]
Fang, Xiaoting [1 ]
Yang, Fafu [1 ,2 ]
Wu, Yamin [1 ]
机构：
[1] Fujian Normal Univ, Coll Chem & Chem Engn, Fuzhou 350007, Peoples R China
[2] Fujian Key Lab Polymer Mat, Fuzhou 350007, Peoples R China
来源：
TETRAHEDRON LETTERS | 2015年 / 56卷 / 40期
基金：
中国国家自然科学基金;
关键词：
Gallic; Cyanuric; Synthesis; Mesophase; Hydrogen bond; BUILDING-BLOCKS; COMPLEXATION; PHASE;
D O I：
10.1016/j.tetlet.2015.08.018
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The gallic-cyanuric monomer 4, gallic-cyanuric dimer 5, gallic-cyanuric trimer 6 and gallic-cyanuric tetramer 7 containing multiple hydrogen bond were designed and synthesized in yields of 70-80%. Their symmetric structures were characterized by element analyses, FT-IR, ESI-MS, and NMR spectra. Their hexagonal columnar liquid crystalline phases were confirmed by DSC, POM, and XRD analyses. The scope of mesomorphic temperature of compounds 5, 6, and 7 is as wide as 45.7, 70.1, and 134.4 degrees C, respectively. The more gallic ether units are favorable for excellent mesophase. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5465 / 5469
页数：5
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