Rapid, Ambient Temperature Synthesis of Imine Covalent Organic Frameworks Catalyzed by Transition-Metal Nitrates

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dc.citation.firstpage3394en_US
dc.citation.issueNumber9en_US
dc.citation.journalTitleChemistry of Materialsen_US
dc.citation.lastpage3400en_US
dc.citation.volumeNumber33en_US
dc.contributor.authorZhu, Dongyangen_US
dc.contributor.authorZhang, Zhuqingen_US
dc.contributor.authorAlemany, Lawrence B.en_US
dc.contributor.authorLi, Yilinen_US
dc.contributor.authorNnorom, Njidekaen_US
dc.contributor.authorBarnes, Morganen_US
dc.contributor.authorKhalil, Safiyaen_US
dc.contributor.authorRahman, Muhammad M.en_US
dc.contributor.authorAjayan, Pulickel M.en_US
dc.contributor.authorVerduzco, Rafaelen_US
dc.date.accessioned2021-06-10T15:02:46Zen_US
dc.date.available2021-06-10T15:02:46Zen_US
dc.date.issued2021en_US
dc.description.abstractCovalent organic frameworks (COFs) are crystalline, porous organic materials that are promising for applications including catalysis, energy storage, electronics, gas storage, water treatment, and drug delivery. Conventional solvothermal synthesis approaches require elevated temperatures, inert environments, and long reaction times. Herein, we show that transition-metal nitrates can catalyze the rapid synthesis of imine COFs under ambient conditions. We first tested a series of transition metals for the synthesis of a model COF and found that all transition-metal nitrates tested produced crystalline COF products even in the presence of oxygen. Fe(NO3)3·9H2O was found to produce the most crystalline product, and crystalline COFs could be produced within 10 min by optimizing the catalyst loading. Fe(NO3)3·9H2O was further tested as a catalyst for six different COF targets varying in linker lengths, substituents, and stabilities, and it effectively catalyzed the synthesis of all imine COFs tested. This catalyst was also successful in the synthesis of 2D imine COFs with different geometries, 3D COFs, and azine-linked COFs. This work demonstrates a simple, low-cost approach for the synthesis of imine COFs and will significantly lower the barrier for the development of imine COFs for applications.en_US
dc.identifier.citationZhu, Dongyang, Zhang, Zhuqing, Alemany, Lawrence B., et al.. "Rapid, Ambient Temperature Synthesis of Imine Covalent Organic Frameworks Catalyzed by Transition-Metal Nitrates." <i>Chemistry of Materials,</i> 33, no. 9 (2021) American Chemical Society: 3394-3400. https://doi.org/10.1021/acs.chemmater.1c00737.en_US
dc.identifier.doihttps://doi.org/10.1021/acs.chemmater.1c00737en_US
dc.identifier.urihttps://hdl.handle.net/1911/110706en_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.en_US
dc.titleRapid, Ambient Temperature Synthesis of Imine Covalent Organic Frameworks Catalyzed by Transition-Metal Nitratesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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