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首页> 外文期刊>Liquid crystals today >Playing with nanosegregation in discotic crown ethers: from molecular design to OFETs, nanofibers and luminescent materials
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Playing with nanosegregation in discotic crown ethers: from molecular design to OFETs, nanofibers and luminescent materials

机译：盘状冠醚中的纳米分离：从分子设计到OFET，纳米纤维和发光材料

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摘要

Discotic liquid crystals are promising materials for electronic device applications. Combining extended π-systems with crown ethers may further open access to functional supramolecular hybrid materials. In the present publication, we briefly summarise recent literature developments and focus in a second part on our work in the field of discotic crown ethers. The crown ether derivatives are conveniently accessible by convergent syntheses which allow a high degree of variation with respect to side chains, mesogenic unit, size and symmetry of the crown core, metal complexation and counterion. This set of compounds provides a basis for systematic structure– property relationship investigations. Numerous experimental studies identified factors being crucial for mesophase stabilisation and geometry and furthermore led to novel room-temperature crown ether mesogens. The latter were obtained by congestion of the mesogenic units and even introduction of peripheral δ-methyl branched side chains. The formation of molybdenum clustomesogens and their application as luminescent hybrid materials is also described.
机译：盘状液晶是用于电子设备应用的有前途的材料。将扩展的π系统与冠醚结合使用可能会进一步开放功能性超分子杂化材料的使用途径。在本出版物中，我们简要概述了最近的文献发展，并在第二部分中重点介绍了在碟状冠醚领域中的工作。冠醚衍生物可通过收敛性合成方便地获得，其允许在侧链，介晶单元，冠核的大小和对称性，金属络合和抗衡离子方面进行高度变化。这组化合物为系统结构-性质关系研究提供了基础。大量的实验研究确定了对于中间相稳定和几何形状至关重要的因素，而且还导致了新型的室温冠醚介晶。后者是通过介晶单元的拥塞甚至引入外围的δ-甲基支链侧链而获得的。还描述了钼固溶原的形成及其作为发光杂化材料的应用。

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