超分子化学
化学
结晶学
三角棱镜分子几何学
三角晶系
上部结构
块(置换群论)
三联烯
三角锥体分子几何学
晶体结构
几何学
高分子化学
物理
数学
热力学
八面体
作者
Penghao Li,Zhijie Chen,Matthew R. Ryder,Charlotte L. Stern,Qing‐Hui Guo,Xingjie Wang,Omar K. Farha,J. Fraser Stoddart
摘要
Herein we report a hydrogen-bonded three-dimensional porous supramolecular polyknot assembled from a rigid trigonal prismatic triptycene building block with six extended peripheral aryl-carboxyl groups. Within this superstructure, three arrays of undulated 2D rhombic subnets, which display an inclined polycatenation, are interconnected to give an unprecedented uninodal six-connected net with a point symbol of (3.44.610). Such an entanglement results in a trefoil knot motif, which, as the basic repeating unit, is fused and interlocked with itself three-dimensionally to afford a supramolecular polyknot. This example highlights the ability of supramolecular systems to form topologically complex architectures using geometrically simple building blocks.
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