Abstract
Two novel calixarene-based fluoroionophores were synthesized. Their conformations were confirmed to 1,3-alternate by X-ray crystal structures. From CHEF by blocking the PET mechanism in fluorescence spectra, we observed In3+ and Pb2+ion selectivity over other metal ions. For In3+ion, calix[4]-bis-azacrown-5 showed about 20 times more sensitive than calix[4]-mono-azacrown-5 because the source of the binding selectivity comes from the calixarene framework and azacrown ligand by controlling the fluorescence and PET mechanisms associated with the amine moiety.
Original language | English |
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Pages (from-to) | 1585-1589 |
Number of pages | 5 |
Journal | Bulletin of the Korean Chemical Society |
Volume | 23 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2002 Nov 20 |
Externally published | Yes |
Keywords
- Calixarenes
- Complexation
- Conformation
- Fluorescence
ASJC Scopus subject areas
- Chemistry(all)