Gearing of Molecular Swirls: Columnar Packing of Nematogenic Hexakis(4-alkoxyphenylethynyl)benzene Derivatives
作者:Shern-Long Lee、Hsing-An Lin、Yi-Hui Lin、Hsiu-Hui Chen、Ching-Ting Liao、Tzu-Ling Lin、Yi-Chen Chu、Hsiu-Fu Hsu、Chun-hsien Chen、Jey-Jau Lee、Wen-Yi Hung、Qu-Yuan Liu、Chunhung Wu
DOI:10.1002/chem.201002975
日期:2011.1.17
Through molecular design and straightforward synthesis, incorporating an additional alkoxy chain onto various numbers of peripheral phenyls in nematogenic hexakis(4‐alkoxyphenylethynyl)benzene was achieved to generate columnar phases with significantly expanded temperature ranges. For the compound with two decyloxy chains on every peripheral phenyl, scanning tunnelling microscopic studies indicate
通过分子设计和简单的合成方法,在产线的六(4-烷氧基苯基乙炔基)苯中,在不同数量的外围苯基上引入了一个附加的烷氧基链,从而生成了温度范围明显扩大的柱状相。对于在每个外围苯基上带有两个癸氧基链的化合物,扫描隧道显微镜研究表明该分子通过限制烷氧基侧链的构象排列,采用了优选的分子旋流几何形状。色谱柱之间通过锁定机制协同作用的分子旋流堆积,可通过粉末X射线衍射证明稳定的螺旋色谱柱堆积。