Excited state dynamics of cis, cis-1, 3-cyclooctadiene: UV pump VUV probe time-resolved photoelectron spectroscopy

Liu, Yusong, Chakraborty, Pratip, Matsika, Spiridoula and Weinacht, Thomas (2020) Excited state dynamics of cis, cis-1, 3-cyclooctadiene: UV pump VUV probe time-resolved photoelectron spectroscopy. The Journal of Chemical Physics, 153 (7). ISSN 0021-9606

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Abstract

We present UV pump, vacuum ultraviolet probe time-resolved photoelectron spectroscopy measurements of the excited state dynamics of cis,cis-1,3-cyclooctadiene. A 4.75 eV deep UV pump pulse launches a vibrational wave packet on the first electronically excited state, and the ensuing dynamics are probed via ionization using a 7.92 eV probe pulse. The experimental results indicate that the wave packet undergoes rapid internal conversion to the ground state in under 100 fs. Comparing the measurements with electronic structure and trajectory surface hopping calculations, we are able to interpret the features in the measured photoelectron spectra in terms of ionization to several states of the molecular cation.

Item Type:	Article
Additional Information:	DATA AVAILABILITY: The data that support the findings of this study are available from the corresponding author upon reasonable request. ACKNOWLEDGMENTS: The authors are grateful to Chuan Cheng and Brian Kaufman for insightful discussions and technical help in the experiments described in this manuscript. The authors gratefully acknowledge support from the U.S. Department of Energy under Award Nos. DE-FG02-08ER15984 and DE-FG02-08ER15983. Most of the computational work was performed using the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by the National Science Foundation grant (No. ACI-1548562).
Faculty \ School:	Faculty of Science > School of Chemistry, Pharmacy and Pharmacology
Related URLs:	http://www.scopus.com/inward/record.url?... https://pubs.aip.org/aip/jcp/article-abs...
Depositing User:	LivePure Connector
Date Deposited:	29 Sep 2025 09:30
Last Modified:	07 Oct 2025 15:32
URI:	https://ueaeprints.uea.ac.uk/id/eprint/100481
DOI:	10.1063/5.0006920

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