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Designed Synthesis of 3D Covalent Organic Frameworks

El-Kaderi, Hani M. and Hunt, Joseph R. and Mendoza-Cortés, José L. and Côté, Adrien P. and Taylor, Robert E. and O’Keeffe, Michael and Yaghi, Omar M. (2007) Designed Synthesis of 3D Covalent Organic Frameworks. Science, 316 (5822). pp. 268-272. ISSN 0036-8075. doi:10.1126/science.1139915.

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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).

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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.
Funding AgencyGrant Number
Badische Anilin und Soda Fabrik (BASF)UNSPECIFIED
Department of Energy (DOE)DEFG0206ER15813
NSFDMR 0242630
Issue or Number:5822
Record Number:CaltechAUTHORS:20130520-133655834
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38578
Deposited By: Tony Diaz
Deposited On:21 May 2013 17:12
Last Modified:09 Nov 2021 23:38

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