Abstract
The dynamical properties of excited state intramolecular proton transfer in 3-hydroxyflavone have been analyzed on the basis of the time evolution of the quantum states of the two isomeric forms. Potential energy surfaces have been computed at the MNDO/AM1 level. The results shed light on the essential features of the proton transfer mechanism: in particular, the rapidity of the process is to be attributed to the promoting effect of a low frequency bending vibration, which shortens the distance between donor and acceptor atoms.
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Peluso, A., Adamo, C. & Del Re, G. A theoretical analysis of excited state proton transfer in 3-hydroxyflavone. Promoting effect of a low frequency bending mode. J Math Chem 10, 249–274 (1992). https://doi.org/10.1007/BF01169177
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DOI: https://doi.org/10.1007/BF01169177