Time-resolved inner-shell photoelectron spectroscopy: from a bound molecule to an isolated atom
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 (CHI) 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.
Cite
@article{arxiv.1901.08937,
title = {Time-resolved inner-shell photoelectron spectroscopy: from a bound molecule to an isolated atom},
author = {Felix Brauße and Gildas Goldsztejn and Kasra Amini and Rebecca Boll and Sadia Bari and Cédric Bomme and Mark Brouard and Michael Burt and Barbara Cunha de Miranda and Stefan Düsterer and Benjamin Erk and Marie Géléoc and Romain Geneaux and Alexander S. Gentleman and Renaud Guillemin and Iyas Ismail and Per Johnsson and Loïc Journel and Thomas Kierspel and Hansjochen Köckert and Jochen Küpper and Pascal Lablanquie and Jan Lahl and Jason W. L. Lee and Stuart R. Mackenzie and Sylvain Maclot and Bastian Manschwetus and Andrey S. Mereshchenko and Terence Mullins and Pavel K. Olshin and Jérôme Palaudoux and Serguei Patchkovskii and Francis Penent and Maria Novella Piancastelli and Dimitrios Rompotis and Thierry Ruchon and Artem Rudenko and Evgeny Savelyev and Nora Schirmel and Simone Techert and Oksana Travnikova and Sebastian Trippel and Jonathan G. Underwood and Claire Vallance and Joss Wiese and Marc Simon and David M. P. Holland and Tatiana Marchenko and Arnaud Rouzée and Daniel Rolles},
journal= {arXiv preprint arXiv:1901.08937},
year = {2019}
}