Premium
Rational Construction of Borromean Linked Crystalline Organic Polymers
Author(s) -
Guo Xiuxiu,
Lin En,
Gao Jia,
Mao Tianhui,
Yan Dong,
Cheng Peng,
Ma Shengqian,
Chen Yao,
Zhang Zhenjie
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202012504
Subject(s) - synthon , supramolecular chemistry , polymer , materials science , crystal engineering , nanotechnology , chemistry , polymer science , crystal structure , organic chemistry
Attributed to the unique topological complexity and elegant beauty, Borromean systems are attracting intense attention. However, at present, the construction of Borromean linked organic polymers remains a challenge. To address this formidable challenge, we developed a supramolecular‐synthon‐driven approach to fabricate Borromean linked organic polymer. The solvothermal condensation reaction of a judiciously selected trigonal pyramidal building block, 1,3,5‐Tris(4‐aminophenyl)adamantane, with linear dialdehyde building blocks allowed the construction of two rare covalent organic frameworks (COFs) with high crystallinity and robustness. Structure refinement unveiled the successful formation of entangled 2D→2D Borromean arrayed structures. Both the two COFs were of microporosity and thus demonstrated the potentials for gas separation. The successful synthesis of the first two Borromean linked organic polymers paves the avenue to expand the supramolecular‐synthon‐driven approach to other building blocks and topologies, and broadens the family and scope of COFs.