Metal coordination as a template strategy to make resilient woven materials
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- Liu Yuzhong
- Department of Chemistry, University of California-Berkeley
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- Yaghi Omar M.
- Department of Chemistry, University of California-Berkeley King Abdulaziz City for Science and Technology
Bibliographic Information
- Other Title
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- Award Accounts : Metal coordination as a template strategy to make resilient woven materials
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Description
<p>Transition metal ions as a template method has been widely used in the field of supramolecular chemistry. The metal complexation is advantageous in making complex supramocluar architectures because it pre-organizes the ligands into a desirable orientation which faciliatates the following ring-closing reaction, with shorter synthetic steps and generally higher yield. In a similar fashion, this synthetic strategy has recently been adopted to make extended materials by linking the metal-coordinated building blocks with design principles of reticular synthesis. Individual building units are stitched together through strong covalent bond formation to yield long covalent molecular threads that are woven two- or three-dimensionally (2D or 3D), at regular intervals templated by the metal ions. For example, by linking functionalized tetrahedrally-shaped metal complexes with linear links through reversible imine bond formation, crystalline 3D covalent organic frameworks with diamond topology, COF-505 and COF-112, have been constructed by design. In particular, the metal templates can be post-synthetically removed so that the threads have high degrees of freedom to move in respect to each other, which leads to unusal mechanical properties of the woven materials.</p>
Journal
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- Bulletin of Japan Society of Coordination Chemistry
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Bulletin of Japan Society of Coordination Chemistry 71 (0), 12-17, 2018-05-31
Japan Society of Coordination Chemistry
