Highly ordered smectic structures of disc-rod luminescent liquid crystals: the role of the tolane group
Highly ordered smectic structures of disc-rod luminescent liquid crystals: the role of the tolane group
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盘棒状发光液晶的高度有序近晶结构：tolane基团的作用
DOI：
10.1039/d0tc05608a
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发表时间：
2021-03-14
影响因子：
6.4
通讯作者：
Yu, Zhen-Qiang
中科院分区：
文献类型：
--
作者：
Liu, Yurong;Li, Wei;Yu, Zhen-Qiang
设计并合成了两种新型的二苯甲烷棒状发光基元修饰的三苯撑类盘状发光液晶（LLC），研究了苯并菲盘状发光基元与二苯甲烷棒状发光基元之间的自组装竞争.结果表明，LLC形成了高度有序的近晶B或近晶E相以及层状晶体结构，取代了传统的柱状相。的光致发光特性，根据晶体结构的变化，也进行了研究，表明的重要作用的二苯乙炔组在操纵的自组织的盘棒分子，从而实现增强发射。
Two novel calamitic tolane luminogen-modified triphenylene-based discotic luminescent liquid-crystals (LLC) were rationally designed and synthesized to investigate the self-assembly competition between triphenylene discogens and tolane calamitic mesogens. The results show that the LLCs formed thermodynamically stable highly ordered smectic B or smectic E phase as well as lamellar crystal structures, instead of the traditional columnar phase. The photoluminescence properties, which changed according to crystal structures, were also studied, indicating the important role of the tolane group in manipulating the self-organization of disc–rod molecules and consequently achieving enhanced emission.