This review covers construction and properties of porous molecular crystals (PMCs) constructed through hydrogen-bonding of C 3 -symmetric, rigid, π-conjugated molecular building blocks possessing carboxyaryl groups, which was reported in the last 5 years by the author’s group. PMCs with well-defined, self-standing pores have been attracted attention due to various functionalities provided by selective and reversible inclusion of certain chemical species into the pores. However, it has been recognized for long time that construction of PMCs with permanent porosity is not easy due to weakness of noncovalent intermolecular interactions. Systematic construction of PMCs have been limited so far. To overcome this problem, the author has proposed a unique molecular design concept based on C 3 -symmetric π-conjugated molecules (C 3 PIs) possessing o -bis(4-carboxyphenyl)benzene moieties in their periphery and demonstrated that C 3 PIs systematically yielded hydrogen-bonded organic frameworks (HOFs) composed of H-bonded 2D hexagonal networks (H-HexNets) or interpenetrated 3D pcu -networks, which exhibit permanent porosity, significant thermal stability, polar solvent durability, robustness/flexibility, and/or multifunctionality.

中文翻译：

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由具有羧基的刚性π共轭分子构建的氢键多孔骨架

这篇综述涵盖了作者团队在过去 5 年中报道的通过具有羧基芳基的 C 3 对称、刚性、π-共轭分子结构单元的氢键键合构建的多孔分子晶体 (PMC) 的结构和性质。由于通过将某些化学物质选择性和可逆地包含在孔隙中而提供的各种功能，具有明确定义的自立孔隙的 PMC 已引起人们的注意。然而，长期以来人们已经认识到，由于非共价分子间相互作用的弱点，构建具有永久孔隙率的 PMCs 并不容易。迄今为止，PMC 的系统构建受到限制。为了克服这个问题，