Abstract
New macrocyclic ditopic anthracenyl receptors display largechelation-enhanced fluorescence (CHEF) effects upon the addition of linear dications+NH3(CH2)nNH3 +. The amplitude of the effect, which is dependent on the chain length,was at a maximum for propylenediammonium cation. This 1,8-bisazacrown anthracene displaysdifferent binding affinities toward metal ions compared to those of 9-azacrown anthracene.
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Dissociation constants were obtained using the computer program ENZFITTER, available from Elsevier-BIOSOFT, 68 Hills Road, Cambridge CB2 1LA, United Kingdom.
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Kim, S.K., Bang, M.Y., Lee, SH. et al. New Fluorescent Chemosensors for Cationic Guests: 1,8-Bis(azacrown)anthracenes. Journal of Inclusion Phenomena 43, 71–75 (2002). https://doi.org/10.1023/A:1020454519360
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DOI: https://doi.org/10.1023/A:1020454519360