A Liquid Crystalline Oligomer Exhibiting Nematic and Twist-Bend Nematic Mesophases
作者:Richard J. Mandle、John W. Goodby
DOI:10.1002/cphc.201600038
日期:2016.4.4
emergence of chiral domains in an achiral system. In this Communication, we present a study on T49 [bis(4‐(9‐(4‐((4‐cyanobenzoyl)oxy)phenyl)nonyl)phenyl) 4,4′‐(nonane‐1,9‐diyl)dibenzoate], a liquid‐crystalline oligomer exhibiting the twist‐bend nematic phase, which has a molecular length that is of comparable dimensions to the sub‐10 nm pitch determined for CB9CB, and provide new insights into the differentiation
扭曲弯曲的向列相(N TB)被描述为单轴向列相(N)和螺旋手性向列相(N *)之间的结构联系。N TB相展现出对科学至关重要的现象,即1)流体中纳米级螺旋节距的自发形成; 2)镜面对称性的自发破裂,导致手性域出现在纳米管中。非手性系统。在本交流中,我们介绍了对T4 9的研究[ bis(4-(9-(4-((4-氰基苯甲酰基)氧基)苯基)壬基)苯基)4,4'-(壬烷-1,9-二基)二苯甲酸酯]向列相,其分子长度与为CB9CB确定的亚10纳米间距具有可比的尺寸,并为自组装超分子系统的纳米科学与宏观科学之间的区别提供了新的见解。