The manipulation of molecular motions to construct highly ordered supramolecular architectures from chaos in the solid state is considered to be far more complex and challenging in comparison to that in solution. In this work, a bottom-up molecular assembly approach based on a newly designed skeleton-trimmed pillar[5]arene analogue, namely the permethylated leggero pillar[5]arene MeP[5]L, is developed in the solid state. An amorphous powder of MeP[5]L can take up certain guest vapors to form various ordered linker-containing solid-state molecular assemblies, which can be further used to construct a thermodynamically favored linker-free superstructure upon heating. These approaches are driven by vapor-induced solid-state molecular motions followed by a thermally triggered phase-to-phase transformation. The intermolecular interactions play a crucial role in controlling the molecular arrangements in the resulting assemblies. This research will open new insights into exploring controllable molecular motions and assemblies in the solid state, providing new perspectives in supramolecular chemistry and materials.

中文翻译：

---

通过客体诱导的分子间相互作用进行自下而上的固态分子组装

与在溶液中相比，操纵分子运动以从固态混沌中构建高度有序的超分子结构被认为要复杂得多，也更具挑战性。在这项工作中，基于新设计的骨架修剪柱[5]芳烃类似物，即全甲基化leggero柱[5]芳烃MeP[5]L，开发了一种自下而上的分子组装方法。MeP[5]L的无定形粉末可以吸收某些客体蒸气形成各种有序的含有接头的固态分子组装体，可进一步用于在加热时构建热力学有利的无接头超结构。这些方法由蒸汽诱导的固态分子运动驱动，然后是热触发的相间转变。分子间相互作用在控制生成的组件中的分子排列方面起着至关重要的作用。这项研究将为探索固态可控分子运动和组装开辟新的见解，为超分子化学和材料提供新的视角。