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Cited by 308

The DOI matches its Crossref record; 59 of the 59 references it cites were found in a registry or an index.

Toward Covalent Organic Frameworks Bearing Three Different Kinds of Pores: The Strategy for Construction and COF-to-COF Transformation via Heterogeneous Linker Exchange

Qian, Cheng, Qi, Qiao-Yan, Jiang, Guo-Fang, Cui, Fu-Zhi, Tian, Yuan, Zhao, Xin·2017·Journal of the American Chemical Society

Abstract

Covalent organic frameworks (COFs) are an emerging class of crystalline porous organic materials which are fabricated via reticular chemistry. Their topologic structures can be precisely predicted on the basis of the structures of building blocks. However, constructing COFs with complicated structures has remained a great challenge, due to the limited strategies that can access to the structural complexity of COFs. In this work, we have developed a new approach to produce COFs bearing three different kinds of pores. The design is fulfilled by the combination of vertex-truncation with multiple-linking-site strategy. On the basis of this design, a "V"-shaped building block carrying two aldehyde groups on the end of each branch has been synthesized. Condensation of it with 1,4-diaminobenzene or benzidine leads to the formation of two triple-pore COFs, TP-COF-DAB and TP-COF-BZ, respectively. The topological structures of the triple-pore COFs have been confirmed by PXRD studies, synchrotron small-angle X-ray scattering (SAXS) experiments, theoretical simulations, and pore size distribution analyses. Furthermore, for the first time, an in situ COF-to-COF transformation has also been achieved by heating TP-COF-BZ with 1,4-diaminobenzene under solvothermal condition, which leads to the formation of TP-COF-DAB via in situ replacing the benzidine linkers in TP-COF-BZ with 1,4-diaminobenzene linkers.

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Metadata

Authors
Qian, C., Qi, Q.-Y., Jiang, G.-F., Cui, F.-Z., Tian, Y., & Zhao, X.
Venue
Journal of the American Chemical Society
Published
2017-05-09
Volume
139
Issue
19
Pages
6736-6743
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2608557571
Cited by
308
References
59
FWCI
12.87
Type
journal article
Language
en
Open access
closed

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