Crystalline covalent organic frameworks with hydrazone linkages |
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| Authors: | Uribe-Romo Fernando J Doonan Christian J Furukawa Hiroyasu Oisaki Kounosuke Yaghi Omar M |
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| Institution: | Center for Reticular Chemistry, Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, USA. |
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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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