Uncommon building blocks in liquid crystals
Uncommon building blocks in liquid crystals
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DOI：
10.1080/02678292.2023.2297236
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发表时间：
2024-01
期刊：
影响因子：
2.2
通讯作者：
R. Mandle;C. Gibb;J. L. Hobbs
中科院分区：
文献类型：
--
作者：
R. Mandle;C. Gibb;J. L. Hobbs
正如液晶在显示技术中广泛使用一样，少量的构建块在液晶材料的设计和合成中得到广泛使用。这篇综述探讨了热致液晶（LC）的分子结构和它们的相行为之间的错综复杂的关系，强调特定的结构片段在确定LC性能的作用。我们还通过比较仅由单一结构变化区分的材料家族，详细介绍了非传统结构单元对液晶性能的影响，使我们能够探索与传统结构的偏离可以在多大程度上保持液晶性。这一全面的概述不仅强调了特定分子片段在LC设计中的重要性，而且为非传统结构单元在新LC材料开发中的创新使用开辟了途径。正如普遍存在的1，4-二取代苯环有其起源（部分）在非常强大的和可预测的合成这样的系统，通过交叉偶联化学，我们认为，在耦合sp3片段的快速进展，再加上越来越多的可用性合适的积木，使所述片段的列入更实际和有吸引力的液晶系统中使用。
Just as nematic liquid crystals are widespread in display technology, a small number of building blocks find widespread use in the design and synthesis of liquid crystalline materials. This review explores the intricate relationship between the molecular structure of thermotropic liquid crystals (LCs) and their phase behaviour, emphasising the role of specific structural fragments in determining LC properties. We also detail into the impact of non-conventional building blocks on LC properties by comparing families of materials differentiated by only a single structural variation, allowing us to probe the extent to which deviations from traditional structures can maintain liquid crystallinity. This comprehensive overview not only underscores the importance of specific molecular fragments in LC design but also opens avenues for the innovative use of non-traditional building blocks in the development of new LC materials. Just as the ubiquity of 1,4-disubstituted benzene rings has its genesis (partly) in the extremely robust and predictable synthesis of such systems through cross-coupling chemistry; we consider that, the rapid progress in coupling sp3fragments, coupled with the growing availability of suitable building blocks, makes the inclusion of said fragments ever more practical and attractive for use in liquid crystalline systems.