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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 11
BKCSDE 23(11)
November 20, 2002

Title	N-Anthracenylmethyl Calix[4]azacrowns as New Fluorescent Ionophores
Author	Seung H. Yang, Ok J. Shon, Ki M. Park, Shim S. Lee, Ho J. Park, Moon J. Kim, Joung H. Lee, Jong S. Kim
Keywords	Calixarenes, Complexation, Fluorescence, Conformation
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⁺ 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 as-sociated with the amine moiety.
Page	1585 - 1589
Full Text	PDF

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