Crystalline Polyphenylene Covalent Organic Frameworks

The synthesis of crystalline polyphenylene covalent organic frameworks (COFs) was accomplished by linking fluorinated tris­(4-acetylphenyl)­benzene building units using aldol cyclotrimerization. The structures of the two COFs, reported here, were confirmed by powder X-ray diffraction techniques, Fou...

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Published inJournal of the American Chemical Society Vol. 146; no. 1; pp. 89 - 94
Main Authors Han, Xing, Zhou, Zihui, Wang, Kaiyu, Zheng, Zhiling, Neumann, S. Ephraim, Zhang, Heyang, Ma, Tianqiong, Yaghi, Omar M.
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 10.01.2024
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Summary:The synthesis of crystalline polyphenylene covalent organic frameworks (COFs) was accomplished by linking fluorinated tris­(4-acetylphenyl)­benzene building units using aldol cyclotrimerization. The structures of the two COFs, reported here, were confirmed by powder X-ray diffraction techniques, Fourier transform infrared, and solid-state 13C CP/MAS NMR spectroscopy. The results showed that the COFs were porous and chemically stable in corrosive, harsh environments for at least 1 week. Accordingly, postsynthetically modified derivatives of these COFs using primary amines showed CO2 uptake from air and flue gas.
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ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.3c11688