articleJournal of the American Chemical SocietyJul 1, 2011Closed access

Crystalline Covalent Organic Frameworks with Hydrazone Linkages

University of California, Los Angeles · Korea Advanced Institute of Science and Technology

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Abstract

Condensation of 2,5-diethoxyterephthalohydrazide with 1,3,5-triformylbenzene or 1,3,5-tris(4-formylphenyl)benzene yields two new covalent organic frameworks, COF-42 and COF-43, in which the organic building units are linked through hydrazone bonds to form extended two-dimensional porous frameworks. Both materials are highly crystalline, display excellent chemical and thermal stability, and are permanently porous. These new COFs expand the scope of possibilities for this emerging class of porous materials.

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