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Binding of Coumarin 334 withβ-Cyclodextrin and with C-Hexylpyrogallol[4]arene: Opposite Fluorescence Behavior
2013
Journal of Spectroscopy
We report here the structure of the host-guest complexes of Coumarin 334 (C334) withβ-cyclodextrin (β-CD) and with C-hexylpyrogallol[4]arene (C-HPA) and the effect of acidity on the neutral-cation equilibrium of C334 in water and in the presence of the host molecules. The structures of the host-guest complexes are proposed on the basis of the change of fluorescence on the addition ofβ-CD or C-HPA to C334 and by 2D ROESY spectroscopy. Opposite fluorescence behaviors, that is, quenching of
doi:10.1155/2013/408506
fatcat:u5d66jptmnf3zdmcqoj7oevkha