Kemp, David J, Whalley, Laura E, Gardner, Adrian M 
ORCID: 0000-0002-2423-8799, Tuttle, William D, Warner, Lewis G and Wright, Timothy G
(2019)
Complexity surrounding an apparently simple Fermi resonance in <i>p</i>-fluorotoluene revealed using two-dimensional laser-induced fluorescence (2D-LIF) spectroscopy.
JOURNAL OF CHEMICAL PHYSICS, 150 (6).
064306-.
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Abstract
Two-dimensional laser-induced fluorescence (2D-LIF) spectroscopy is a powerful tool allowing overlapped features in an electronic spectrum to be separated, and interactions between vibrations and torsions to be identified. Here the technique is employed to assign the 790-825 cm<sup>-1</sup> region above the origin of the S<sub>1</sub> ← S<sub>0</sub> transition in para-fluorotoluene, which provides insight into the unusual time-resolved results of Davies and Reid [Phys. Rev. Lett. 109, 193004 (2012)]. The region is dominated by a pair of bands that arise from a Fermi resonance; however, the assignment is complicated by contributions from a number of overtones and combinations, including vibration-torsion ("vibtor") levels. The activity in the 2D-LIF spectra is compared to the recently reported zero-electron-kinetic-energy spectra [Tuttle et al., J. Chem. Phys. 146, 244310 (2017)] to arrive at a consistent picture of the energy levels in this region of the spectrum.
| Item Type: | Article |
|---|---|
| Depositing User: | Symplectic Admin |
| Date Deposited: | 30 Jan 2020 14:04 |
| Last Modified: | 17 Oct 2023 21:27 |
| DOI: | 10.1063/1.5083682 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3072699 |
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