Improved synthesis of β-ketoenamine-linked covalent organic frameworks via monomer exchange reactions

β-Ketoenamine-linked covalent organic frameworks (COFs) offer excellent structural versatility and outstanding aqueous stability, but their stability complicates obtaining samples with high crystallinity and surface areas. In contrast, imine-linked COFs are often isolated with superior materials qua...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019-02, Vol.55 (18), p.2680-2683
Main Authors: Daugherty, Michael C, Vitaku, Edon, Li, Rebecca L, Evans, Austin M, Chavez, Anton D, Dichtel, William R
Format: Article
Language:English
Subjects:
Chemical synthesis
Crystal structure
Crystallinity
Exchanging
Monomers
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Summary:β-Ketoenamine-linked covalent organic frameworks (COFs) offer excellent structural versatility and outstanding aqueous stability, but their stability complicates obtaining samples with high crystallinity and surface areas. In contrast, imine-linked COFs are often isolated with superior materials quality. Here we synthesize several β-ketoenamine-linked COFs, including two unreported structures, with unmatched crystallinity and high surface areas by preparing the corresponding imine-linked COF and exchanging its triformylbenzene monomers with triformylphloroglucinol.
ISSN:1359-7345
1364-548X
DOI:10.1039/c8cc08957d