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An Azine-Linked Covalent Organic Framework

Dalapati, Sasanka, Jin, Shangbin, Gao, Jia, Xu, Yanhong, Nagai, Atsushi, Jiang, Donglin·2013·Journal of the American Chemical Society

Abstract

Condensation of hydrazine with 1,3,6,8-tetrakis(4-formylphenyl)pyrene under solvothermal conditions yields highly crystalline two-dimensional covalent organic frameworks. The pyrene units occupy the vertices and the diazabutadiene (-C═N-N═C-) linkers locate the edges of rohmbic-shaped polygon sheets, which further stack in an AA-stacking mode to constitute periodically ordered pyrene columns and one-dimensional microporous channels. The azine-linked frameworks feature permanent porosity with high surface area and exhibit outstanding chemical stability. By virtue of the pyrene columnar ordering, the azine-linked frameworks are highly luminescent, whereas the azine units serve as open docking sites for hydrogen-bonding interactions. These synergestic functions of the vertices and edge units endow the azine-linked pyrene frameworks with extremely high sensitivity and selectivity in chemosensing, for example, the selective detection of 2,4,6-trinitrophenol explosive. We anticipate that the extension of the present azine-linked strategy would not only increase the structural diversity but also expand the scope of functions based on this highly stable class of covalent organic frameworks.

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Authors
Dalapati, S., Jin, S., Gao, J., Xu, Y., Nagai, A., & Jiang, D.
Venue
Journal of the American Chemical Society
Published
2013-11-05
Volume
135
Issue
46
Pages
17310-17313
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2317898558
Cited by
924
References
0
FWCI
14.06
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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