Cucurbit[6]uril-based supramolecular assemblies: possible application in radioactive cesium cation capture.
Multidimensional supramolecular assemblies based on cucurbit[n]uril (n = 6 or 7) were constructed via the outer-surface interactions of cucurbit[n]urils with the polyaromatic compound 4,4',4″-benzene-1,3,5-triyl-tribenzoate as a structure-directing agent. Most impressively, the cucurbit[6]uril-based assembly exhibits high selectivity for capture of cesium cations among the common alkali metal ions in a basic medium and releases the cesium cations under acidic conditions. This reversible process enables possible applications in cesium cation capture.
Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University , Nanjing 210093, China.
Kai
K
Chen
Yan-Shang
YS
Kang
Yue
Y
Zhao
Ji-Min
JM
Yang
Yi
Y
Lu
Wei-Yin
WY
Sun