Designed Synthesis of 3D Covalent Organic Frameworks
Abstract
Three-dimensional covalent organic frameworks (3D COFs) were synthesized by targeting two nets based on triangular and tetrahedral nodes: ctn and bor. The respective 3D COFs were synthesized as crystalline solids by condensation reactions of tetrahedral tetra(4-dihydroxyborylphenyl) methane or tetra(4-dihydroxyborylphenyl)silane and by co-condensation of triangular 2,3,6,7,10,11-hexahydroxytriphenylene. Because these materials are entirely constructed from strong covalent bonds (C-C, C-O, C-B, and B-O), they have high thermal stabilities (400° to 500°C), and they also have high surface areas (3472 and 4210 square meters per gram for COF-102 and COF-103, respectively) and extremely low densities (0.17 grams per cubic centimeter).
Additional Information
© 2007 American Association for the Advancement of Science. Received 16 January 2007; accepted 22 February 2007. The work was supported by Badische Anilin und Soda Fabrik (BASF) Ludwigshafen for synthesis, U.S. Department of Energy (DEFG0206ER15813) for adsorption, and NSF (DMR 0242630) for simulated structures. We thank H. Furukawa (Yaghi group) for invaluable assistance with porosity measurements. Crystallographic information files for COF-102, COF-103, COF-105, and COF-108 have been deposited into the Cambridge Crystallographic Data Centre (CCDC) under deposition numbers CCDC 637175 to 637178.Attached Files
Supplemental Material - El-Kaderi.SOM.revised.pdf
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Additional details
- Eprint ID
- 38578
- Resolver ID
- CaltechAUTHORS:20130520-133655834
- Badische Anilin und Soda Fabrik (BASF)
- Department of Energy (DOE)
- DEFG0206ER15813
- NSF
- DMR 0242630
- Created
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2013-05-21Created from EPrint's datestamp field
- Updated
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2023-03-16Created from EPrint's last_modified field