| TECHNOLOGY | A series of molecules that FLUORESCE in the presence of specific metal ions could form the basis of sensors that continually measure metals in streams of water. Authors have been studying compds consisting of macrocyclic ligands attached to sidearms whose luminescent properties change once a metal binds to the nearby ring. In their latest work, the researchers introduce S atoms into the crown ether ring. The compd shown, for example, forms a one-to-one complex with Zn(II) that fluoresces orange when excited with UV light. Moreover the compd fluorescence changes to yellow when it takes up second Zn ion |
| UPDATE | 07.01 |
| AUTHOR |
Bradshaw Jerald S.; Emeritus prof of chemistry Izatt Reed M.; Emeritus prof of chemistry Savage Paul B.; Associate prof |
| LITERATURE REF. | J. Org. Chem., 66, p. 4752 (2001) |
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