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- W1992352591 abstract "The excited-state intramolecular proton transfer (ESIPT) reaction of 1-hydroxy-2-naphthaldehyde (HN12) has been studied within the interior of the supramolecular assemblies of alpha-, beta-, and gamma-cyclodextrins (CD) and biomimicking environments of ionic (SDS) and non-ionic (TW-20) micelles. Fluorescence measurements are used to investigate the effect of various supramolecular assemblies on the ESIPT reaction by monitoring the large Stokes-shifted tautomer emission of HN12. Enhanced tautomer emission in the microencapsulated state predicts favorable ESIPT reaction in the supramoleuclar assemblies. Benesi-Hildebrand plots have been employed to ascertain that the stoichiometric ratios of the complexes formed between HN12 and CDs are 1:2, 1:1, and 1:1 for alpha-, beta-, and gamma-CD, respectively. The binding constants (K(1)) and free-energy change (DeltaG) for inclusion complexation are also determined from the linearized Benesi-Hildebrand plots. Steady-state fluorescence anisotropy, REES, excitation anisotropy, and fluorescence lifetime measurements are in line with other experimental findings. Differential action of urea on SDS and TW-20-bound probe has also been investigated." @default.
- W1992352591 created "2016-06-24" @default.
- W1992352591 creator A5013406683 @default.
- W1992352591 creator A5034836176 @default.
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- W1992352591 date "2009-12-29" @default.
- W1992352591 modified "2023-10-01" @default.
- W1992352591 title "Modulation of Excited-State Intramolecular Proton Transfer Reaction of 1-Hydroxy-2-naphthaldehyde in Different Supramolecular Assemblies" @default.
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- W1992352591 doi "https://doi.org/10.1021/la903196k" @default.
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