Coherent motion of low frequency vibrations in ultrafast excited state proton transfer
Loading...
Date
1999
Journal Title
Journal ISSN
Volume Title
Publisher
Routledge : Taylor and Francis Inc.
Abstract
Photoexcitation of internal proton transfer in the tinuvin molecule causes the excitation of some low frequency vibrational modes which oscillate with high amplitudes in a coherent manner over 700 fs. Such effect is observed for the first time applying two color pump/probe measurement with 25 fs pulses. Based on resonance Raman spectra a normal coordinate analysis of the modes is performed. It is shown that the nuclear movement given by the normal vibration of one of the modes serves to open up a barrierfree proton transfer path.
Description
Keywords
Excited state-molecules, Potential energy surface, Proton transfer, Raman spectra-molecules, Ultrafast time resolved spectra
Citation
Citation
Pfeiffer, M., Chudoba, C., Lau, A., Lenz, K., & Elsaesser, T. (1999). Coherent motion of low frequency vibrations in ultrafast excited state proton transfer (Version publishedVersion, Vol. 19). Version publishedVersion, Vol. 19. Routledge : Taylor and Francis Inc. https://doi.org//10.1155/1999/23283