Directing Molecular Weaving of Covalent Organic Frameworks and Their Dimensionality by Angular Control.
Directing Molecular Weaving of Covalent Organic Frameworks and Their Dimensionality by Angular Control.
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DOI：
10.1021/jacs.3c09691
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发表时间：
2023-10
影响因子：
15
通讯作者：
Xing Han;S. E. Neumann;B. Nannenga;Kaiyu Wang;Kam-Yun Li;Saber Mirzaei;Xuan Yao;Chenhui Zhu;Mei-Yan Gao;Yue-Biao Zhang;Yong Cui;O. Yaghi;Kelvin Kam-Yun
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文献类型：
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作者：
Xing Han;S. E. Neumann;B. Nannenga;Kaiyu Wang;Kam-Yun Li;Saber Mirzaei;Xuan Yao;Chenhui Zhu;Mei-Yan Gao;Yue-Biao Zhang;Yong Cui;O. Yaghi;Kelvin Kam-Yun
尽管网状化学通常利用相互拥抱的四面体金属络合物作为交叉点来产生三维分子编织结构，但二维编织仍然在很大程度上未被探索。我们报告了一种新的策略来访问二维编织COFs通过控制的角度通常是线性的链接器，从而成功地合成了一个二维编织图案的基础上链链接围栏。合成通过将双取代基官能化的铜（I）双菲咯啉配合物与弯曲的4，4 '-二氨基二苯醚结构单元连接来完成。这导致形成结晶固体，称为COF-523-Cu，其结构通过光谱技术和电子和X射线衍射技术表征，以揭示分子编织的，双重互穿的链节栅栏。目前的工作显着推进的概念，分子编织及其在复杂的化学结构的设计实践。
Although reticular chemistry has commonly utilized mutually embracing tetrahedral metal complexes as crossing points to generate three-dimensional molecularly woven structures, weaving in two dimensions remains largely unexplored. We report a new strategy to access 2D woven COFs by controlling the angle of the usually linear linker, resulting in the successful synthesis of a 2D woven pattern based on chain-link fence. The synthesis was accomplished by linking aldehyde-functionalized copper(I) bisphenanthroline complexes with bent 4,4'-oxydianiline building units. This results in the formation of a crystalline solid, termed COF-523-Cu, whose structure was characterized by spectroscopic techniques and electron and X-ray diffraction techniques to reveal a molecularly woven, twofold-interpenetrated chain-link fence. The present work significantly advances the concept of molecular weaving and its practice in the design of complex chemical structures.