Shape‐persistent conjugated mesogens with oligothiophene arms of different lengths have been synthesized. Such mesogens possess free intrinsic space between their conjugated arms. They form columnar liquid‐crystalline phases, in which the void is filled by dense helical packing in the neat phase similar to an oligo(phenylene vinylene) derivative of equal size. The void can also be compensated by the inclusion of the small acceptor molecule 2,4,7‐trinitrofluorenone. In solution, the acceptor interacts with the core as the largest π‐surface, while in the solid material, it is incorporated between the arms and sandwiched by the star‐shaped neighbours along the columnar assemblies. The TNF acceptors are not nanosegregated from the star‐shaped donors, thus the liquid crystal structure converts to a nano‐reservoir for TNF (endo‐receptor). These host–guest arrangements are confirmed by comprehensive X‐ray scattering experiments and solid‐state NMR spectroscopy. This results in ordered columnar hexagonal phases at high temperatures, which change to helical columnar mesophases or to columnar soft crystals at room temperature.

中文翻译：

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来自星形共轭介晶的柱状液晶，作为用于小型受体的纳米储库。

合成了具有不同长度的寡聚噻吩臂的形状持久的共轭介晶。这种介晶在其共轭臂之间具有自由的固有空间。它们形成柱状液晶相，其中空隙被稠密的螺旋堆积在纯相中填充，类似于大小相等的低聚（亚苯基亚乙烯基）衍生物。也可以通过包含小的受体分子2,4,7-三硝基芴酮来补偿该空隙。在溶液中，受体与核相互作用，成为最大的π表面，而在固体材料中，受体结合在臂之间，并沿着圆柱状组件被星形邻居夹在中间。TNF受体不是与星形供体进行纳米分离，因此液晶结构转化为TNF的纳米储库（内受体）。这些主客安排已通过全面的X射线散射实验和固态NMR光谱学证实。这导致在高温下有序的柱状六方相，在室温下变为螺旋柱状中间相或柱状软晶体。