Issue 39, 2015

Triazatruxene based covalent organic framework and its quick-response fluorescence-on nature towards electron rich arenes

Abstract

Two new 2D covalent organic frameworks (COFs) with a regular honeycomb lattice, TAT-COF-1 and TAT-COF-2, were synthesized based on triazatruxene derivatives. The two COFs, especially TAT-COF-2, have a large BET surface area, good crystallinity, moderate to good hydrogen and carbon dioxide adsorption abilities and also possess good CO2/N2 selectivity. When suspended in ethanol, the fluorescence of TAT-COF-2 could be enhanced or quenched by different solvents. It also shows a rapid fluorescence-on and fluorescence-off nature towards electron rich and deficient arene vapors, respectively. After being exposed to electron-rich arene vapors, the enhanced fluorescence intensity can be recovered to normal level after 5 minutes in an ambient atmosphere, which means the sample could be reused conveniently for detecting electron rich arene vapors.

Graphical abstract: Triazatruxene based covalent organic framework and its quick-response fluorescence-on nature towards electron rich arenes

Supplementary files

Article information

Article type
Communication
Submitted
24 Jul 2015
Accepted
02 Sep 2015
First published
02 Sep 2015

J. Mater. Chem. C, 2015,3, 10066-10069

Author version available

Triazatruxene based covalent organic framework and its quick-response fluorescence-on nature towards electron rich arenes

Y. Xie, S. Ding, J. Liu, W. Wang and Q. Zheng, J. Mater. Chem. C, 2015, 3, 10066 DOI: 10.1039/C5TC02256H

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