Crystalline Polyphenylene Covalent Organic Frameworks

06 November 2023, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

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 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, post-synthetically modified derivatives of these COFs using primary amines showed CO2 uptake from air and flue gas.

Keywords

Covalent Organic Frameworks

Supplementary materials

Title
Description
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Title
Crystalline Polyphenylene Covalent Organic Frameworks
Description
Detailed experimental section, Characterization including X-ray diffraction, Fourier-transform infrared spectroscopy, solid-state nuclear magnetic resonance spectroscopy, and thermogravimetric analysis.
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