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Identification of separate isoenergetic routes for vibrational energy flow in p-fluorotoluene

Gardner, Adrian M.; Whalley, Laura E.; Kemp, David J.; Tuttle, William D.; Wright, Timothy G.

Authors

Adrian M. Gardner

Laura E. Whalley

David J. Kemp

William D. Tuttle

TIMOTHY WRIGHT TIM.WRIGHT@NOTTINGHAM.AC.UK
Professor of Physical and Theoretical Chemistry



Abstract

A deceptively simple feature in the S1 ← S0 spectrum of p-fluorotoluene (pFT), 1013 cm−1 above the origin, is studied using both zero-electron-kinetic-energy (ZEKE) and two-dimensional laser-induced fluorescence (2D-LIF) spectroscopy. It is found to consist of a cornucopia of overlapped transitions to eigenstates that arise from numerous interacting levels. A significant variation in the activity is seen employing both the ZEKE and 2D-LIF techniques. Detailed insight into the complicated spectra can be achieved, owing to the large number of vibrational wavenumbers that have been previously determined for the S0, S1, and D0+ states, summarized herein. It is found that the activity is dominated by two overtones, which are individually interacting with other levels, so providing largely independent routes for vibrational energy flow at the same internal energy. Additionally, other weak features located 900–1050 cm−1 above the origin are examined.

Citation

Gardner, A. M., Whalley, L. E., Kemp, D. J., Tuttle, W. D., & Wright, T. G. (2019). Identification of separate isoenergetic routes for vibrational energy flow in p-fluorotoluene. Journal of Chemical Physics, 151(15), https://doi.org/10.1063/1.5126179

Journal Article Type Article
Acceptance Date Sep 26, 2019
Online Publication Date Oct 15, 2019
Publication Date Oct 21, 2019
Deposit Date Oct 25, 2019
Publicly Available Date Oct 25, 2019
Journal Journal of Chemical Physics
Print ISSN 0021-9606
Electronic ISSN 1089-7690
Publisher AIP Publishing
Peer Reviewed Peer Reviewed
Volume 151
Issue 15
Article Number 154302
DOI https://doi.org/10.1063/1.5126179
Public URL https://nottingham-repository.worktribe.com/output/2964774
Publisher URL https://aip.scitation.org/doi/10.1063/1.5126179
Additional Information This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Identification of separate isoenergetic routes for vibrational energy flow in p-fluorotoluene Adrian M. Gardnera), Laura E. Whalley, David J. Kemp, William D. Tuttle, and Timothy G. Wright) View AffiliationsThe Journal of Chemical Physics 151:15 and may be found at https://aip.scitation.org/doi/10.1063/1.5126179

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