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Synthesis of novel calixcrown derivatives with selective complexation towards cesium ions |
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| Authors: | Lu Zhanga Juan Dua Li Hua Yuana Dong Zhangb Gui Ping Danb Yuan You Yanga Wen Feng a Key Laboratory for Radiation Physics Technology of Ministry of Education College of Chemistry |
| Institution: | a Key Laboratory for Radiation Physics and Technology of Ministry of Education, College of Chemistry, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China;b Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, China |
| Abstract: | A series of novel calix4]arenecrown-6 derivatives with an alkenyl loop of various sizes 5-8 were synthesized via intramolecular ring closing olefin metathesis and characterized by ~1H NMR,~(13)C NMR and ESI-HRMS.Their complexation property towards cesium ion was studied by ~1H NMR technique.Two-phase extraction of alkali metal ions using UV-vis spectroscopy revealed remarkably different extractabilities.These results indicate that the complexation capacities towards cesium ions can be tuned and controlled ... |
| Keywords: | Calixcrowns Olefin metathesis Cesium ions Extraction |
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