Mode-Specific Vibrational Autodetachment Following Excitation of Electronic Resonances by Electrons and Photons

Cate S. Anstöter, Golda Mensa-Bonsu, Pamir Nag, Miloš Ranković, Ragesh Kumar T. P., Anton N. Boichenko, Anastasia V. Bochenkova, Juraj Fedor, and Jan R. R. Verlet
Phys. Rev. Lett. 124, 203401 – Published 19 May 2020
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Abstract

Electronic resonances commonly decay via internal conversion to vibrationally hot anions and subsequent statistical electron emission. We observed vibrational structure in such an emission from the nitrobenzene anion, in both the 2D electron energy loss and 2D photoelectron spectroscopy of the neutral and anion, respectively. The emission peaks could be correlated with calculated nonadiabatic coupling elements for vibrational modes to the electronic continuum from a nonvalence dipole-bound state. This autodetachment mechanism via a dipole-bound state is likely to be a common feature in both electron and photoelectron spectroscopies.

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  • Received 9 March 2020
  • Accepted 1 May 2020

DOI:https://doi.org/10.1103/PhysRevLett.124.203401

© 2020 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Cate S. Anstöter1, Golda Mensa-Bonsu1, Pamir Nag2, Miloš Ranković2, Ragesh Kumar T. P.2, Anton N. Boichenko3, Anastasia V. Bochenkova3,*, Juraj Fedor2,†, and Jan R. R. Verlet1,‡

  • 1Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
  • 2J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 18223 Prague 8, Czech Republic
  • 3Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia

  • *bochenkova@phys.chem.msu.ru
  • juraj.fedor@jh-inst.cas.cz
  • j.r.r.verlet@durham.ac.uk

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Issue

Vol. 124, Iss. 20 — 22 May 2020

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