Time-resolved inner-shell photoelectron spectroscopy: From a bound molecule to 
an isolated atom.

Brasse, F.; Goldsztejn, G.; Amini, K.; Boll, R.; Bari, S.; Bomme, C.; Brouard, M.; Burt, M.; de Miranda, B. C.; Düsterer, S.; Erk, B.; Geleoc, M.; Geneaux, R.; Gentleman, A. S.; Guillemin, R.; Ismail, I.; Johnsson, P.; Journel, L.; Kierspel, T.; Kockert, H.; Küpper, J.; Lablanquie, P.; Lahl, J.; Lee, J. W. L.; Mackenzie, S. R.; Maclot, S.; Manschwetus, B.; Mereshchenko, A. S.; Mullins, T.; Olshin, P. K.; Palaudoux, J.; Patchkovskii, S.; Penent, F.; Piancastelli, M. N.; Rompotis, D.; Ruchon, T.; Rudenko, A.; Savelyev, E.; Schirmel, N.; Techert, S.; Travnikova, O.; Trippel, S.; Underwood, J. G.; Vallance, C.; Wiese, J.; Simon, M.; Holland, D. M. P.; Marchenko, T.; Rouzee, A.; Rolles, D.

doi:10.1103/PhysRevA.97.043429

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Time-resolved inner-shell photoelectron spectroscopy: From a bound molecule to an isolated atom.

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Techert, S.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

Brasse, F., Goldsztejn, G., Amini, K., Boll, R., Bari, S., Bomme, C., et al. (2018). Time-resolved inner-shell photoelectron spectroscopy: From a bound molecule to an isolated atom. Physical Review A, 97(4): 043429. doi:10.1103/PhysRevA.97.043429.

Cite as: https://hdl.handle.net/21.11116/0000-0001-58CB-8

Abstract

Due to its element and site specificity, inner-shell photoelectron spectroscopy is a widely used technique to probe the chemical structure of matter. Here, we show that time-resolved inner-shell photoelectron spectroscopy can be employed to observe ultrafast chemical reactions and the electronic response to the nuclear motion with high sensitivity. The ultraviolet dissociation of iodomethane (CH3I) is investigated by ionization above the iodine 4d edge, using time-resolved inner-shell photoelectron and photoion spectroscopy. The dynamics observed in the photoelectron spectra appear earlier and are faster than those seen in the iodine fragments. The experimental results are interpreted using crystal-field and spin-orbit configuration interaction calculations, and demonstrate that time-resolved inner-shell photoelectron spectroscopy is a powerful tool to directly track ultrafast structural and electronic transformations in gas-phase molecules.