Improved Synthesis of β-Ketoenamine-Linked Covalent Organic Frameworks via Monomer Exchange Reactions

13 November 2018, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


β-ketoenamine-linked covalent organic frameworks (COFs) offer excellent structural versatility and outstanding aqueous stability, but their less dynamic linkages complicate obtaining samples with high crystallinity and surface areas that approach theoretical values. 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 topologically equivalent imine-linked COF and exchanging its triformylbenzene monomers with triformylphloroglucinol.


covalent organic frameworks (COFs)
β-ketoenamine-linked COFs
two-dimensional polymers
monomer exchange

Supplementary materials

2018 11 Daugherty ChemRxiv SupportingInformation


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