Amidation,Esterification, and Thioesterification of a Carboxyl-Functionalized Covalent Organic Framework |
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| Authors: | Dr Lei Guo Dr Shang Jia Dr Christian S Diercks Prof Xuejing Yang Dr Sultan A Alshmimri Prof Omar M Yaghi |
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| Institution: | 1. Department of Chemistry, University of California-Berkeley, Berkeley, CA, 94720 USA;2. Department of Civil and Environmental Engineering, University of California-Berkeley, Berkeley, CA, 94720 USA;3. UC Berkeley-KACST Joint Center of Excellence for Nanomaterials for Clean Energy Applications, King Abdulaziz City for Science and Technology, Riyadh, 11442 Saudi Arabia |
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| Abstract: | Three new post-synthetic modification reactions, namely amidation, esterification, and thioesterification, were demonstrated on a novel highly crystalline two-dimensional covalent organic framework (COF), COF-616, bearing pre-installed carboxyl groups. The strategy can be used to introduce a large variety of functional groups into COFs and the modifications can be carried out under mild reaction conditions, with high yields, and an easy work-up protocol. As a proof of concept, various chelating functionalities were successfully incorporated into COF-616 to yield a family of adsorbents for efficient removal of several contaminants in the water. |
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| Keywords: | Carbonsäuren Konjugation Kovalente organische Gerüste Wasserbehandlung |
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