Fluorescent Uranyl Ion Lidded Cucurbit[5]uril Capsule
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A novel fluorescent complex {(UO2)2(CB5)}(NO3)4·4HNO3.3H2O (U2CB5) is obtained from cucurbit[5]uril (CB5) and uranyl nitrate under ambient temperature conditions. The crystal structure revealed that two uranyl ions are coordinated to the two open portals of CB5 giving a closed molecular capsule, which further connected through CB5 molecules to give two-dimensional frameworks. The U2CB5 complex was further investigated by NMR, FTIR and TGA techniques. The Fluorescence of uranyl ion was found to be enhanced due to complexation with cucurbituril.
创建时间：
2016-02-22
