Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1255848 | Chinese Chemical Letters | 2011 | 4 Pages |
Abstract
A series of novel calix[4]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, 13C 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 through cooperative regulation of the strain of the loop and conformational change of calixcrown skelton.
Related Topics
Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Lu Zhang, Juan Du, Li Hua Yuan, Dong Zhang, Gui Ping Dan, Yuan You Yang, Wen Feng,