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Communication
Phys. Chem. Chem. Phys., 2009, 11, 10266 - 10269, DOI: 10.1039/b915768a
Coherent excited state intramolecular proton transfer probed by time-resolved fluorescence
Chul Hoon Kim and Taiha Joo
An ultra-fast chemical reaction can act as an impulsive excitation of the vibrations. Excited state intramolecular proton transfer in 10-hydroxybenzo[h]quinoline proceeds in 13 fs. As a result, product vibrational modes with their periods longer than (13 × 2) fs are coherently excited in the product potential surface, which can be observed most unambiguously by the oscillations in the time-resolved fluorescence signal of the product keto isomer.
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