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- W2016111751 abstract "Abstract In this work, we report on the observation of ultrafast intramolecular charge- and proton-transfer reactions of 4′-dimethylaminoflavonol (DMAF) in N,N-dimethyl formamide and in γ-cyclodextrin (γ-CD) solution. Upon femtosecond excitation an intramolecular charge transfer (ICT) reaction takes place to produce an ICT structure in ∼200 fs. This structure may undergo a proton transfer reaction to generate a zwitterionic (Z) form in 2–3 ps, or relaxes in its potential energy well, to later equilibrate with that of Z in hundreds of ps. Addition of γ-CD does not significantly affect the fast dynamics of the formed anion. The fs-emission signals of the parent molecule, 3-hydroxyflavone, indicate that the dimethyl amino group in DMAF enhances the rate constant of intermolecular proton-transfer and intramolecular charge-transfer reactions." @default.
- W2016111751 created "2016-06-24" @default.
- W2016111751 creator A5068578367 @default.
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- W2016111751 date "2007-09-01" @default.
- W2016111751 modified "2023-10-17" @default.
- W2016111751 title "Proton and charge transfer reactions dynamics of a hydroxyflavone derivative in a polar solvent and in a cyclodextrin nanocavity" @default.
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- W2016111751 doi "https://doi.org/10.1016/j.chemphys.2007.04.013" @default.
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