4.5 Article

Designed Synthesis of a Two-Dimensional Covalent Organic Framework with Three-Level Hierarchical Porosity

Journal

CHINESE JOURNAL OF CHEMISTRY
Volume 38, Issue 12, Pages 1676-1680

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.202000317

Keywords

Covalent organic frameworks; Hierarchical porosity; Synthesis design; Desymmetrization; Schiff base condensation

Funding

  1. National Science Fund for Distinguished Young Scholars of China [21725404]
  2. Shanghai Scientific and Technological Innovation Project [19XD1404900]
  3. Strategic Priority Research Program of the Chinese Academy of Sciences [XDB20000000]

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.Summary of main observation and conclusion Covalent organic frameworks (COFs) with hierarchical porosity have drawn considerable attention very recently due to their advantages over the COFs with uniform porosity in some aspects. However, the design strategies for the construction of this type of COFs, namely heteropore COFs, are quite limited. We herein report a facile approach to constructing a two-dimensional COF which possesses three different kinds of pores. Its structure is confirmed by powder X-ray diffraction and nitrogen sorption studies. The successful construction of the triple-pore COF represents a new method to access COFs with high hierarchical porosity.

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