N-Anthracenylmethyl Calix[4]azacrowns as New Fluorescent Ionophores

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 $In^{3+}$ and $Pb^{2+}$ selectivity over other metal ions. For $In^{3+}$ion, cal...

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Published inBulletin of the Korean Chemical Society Vol. 23; no. 11; pp. 1585 - 1589
Main Authors Yang, Seung-H, Shon, Ok-J, Park, Ki-M, Lee, Shim-S, Park, Ho-J, Kim, Moon-J, Lee, Joung-H, Kim, Jong-S
Format Journal Article
LanguageKorean
Published 2002
Subjects
Complexation
Calixarenes
fluorescence
Conformation
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Summary: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 $In^{3+}$ and $Pb^{2+}$ selectivity over other metal ions. For $In^{3+}$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 as-sociated with the amine moiety.
Bibliography:KISTI1.1003/JNL.JAKO200202727291045
ISSN:0253-2964
1229-5949