Journal
CHEMICAL SCIENCE
Volume 12, Issue 40, Pages -Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1sc04531h
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [22071244]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB20000000]
Ask authors/readers for more resources
This study synthesized seven water-stable hydrazone-linked POCs with diverse structures, tunable window diameters, and cavity volumes, which can effectively remove various pollutants from water.
Although porous organic cages (POCs), particularly imine-linked (C=N) ones, have advanced significantly over the last few decades, the reversible nature of imine linkages makes them prone to hydrolysis and structural collapse, severely limiting their applications under moist or water conditions. Herein, seven water-stable hydrazone-linked (C=N-N) POCs are prepared through a simple coupling of the same supramolecular tetraformylresorcin[4]arene cavitand with different dihydrazide linkers. Their structures are all determined by single-crystal X-ray crystallography, demonstrating rich structural diversity from the [2 + 4] lantern, [3 + 6] triangular prism, and unprecedented [4 + 8] square prism to the extra-large [6 + 12] octahedron. In addition, they respectively exhibit tunable window diameters and cavity volumes ranging from about 5.4 to 11.1 nm and 580 to 6800 angstrom 3. Moreover, their application in the water environment for pollutant removal was explored, indicating that they can effectively eliminate various types of contaminants from water, including radionuclide waste, toxic heavy metal ions, and organic micropollutants. This work demonstrates a convenient method for rationally constructing versatile robust POCs and presents their great application potentialities in water medium.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available