Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5279390 | Tetrahedron Letters | 2006 | 5 Pages |
Abstract
A new calix[4]arene-based fluorescence chemosensor displaying a strong excimer emission was prepared. When a Pb2+ ion is bound to the two amide oxygen atoms linked to the fluorophores, the ligand exhibits a marked quenched excimer emission due to its geometrical change during the complexation. By the addition of Ca2+ ion into the 1·Pb2+, the excimer emission band was revived, by which an interesting on/off switch process is proposed.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Su Ho Kim, Jung Kyu Choi, Sung Kuk Kim, Wonbo Sim, Jong Seung Kim,