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

0524778 - ÚFCH JH 2021 RIV US eng J - Journal Article
Anstoter, C. S. - Mensa-Bonsu, G. - Nag, Pamir - Ranković, Miloš - Kumar, Ragesh Thelakkadan Puthiyaveettil - Boichenko, A. N. - Bochenkova, A. - Fedor, Juraj - Verlet, J.R.R.
Mode-Specific Vibrational Autodetachment Following Excitation of Electronic Resonances by Electrons and Photons.
Physical Review Letters. Roč. 124, č. 20 (2020), č. článku 203401. ISSN 0031-9007. E-ISSN 1079-7114
R&D Projects: GA ČR(CZ) GA20-11460S; GA MŠMT(CZ) EF16_027/0008355
Institutional support: RVO:61388955
Keywords : thermionic emission * ultrafast dynamics * shape resonance * cross-sections * p-benzoquinone * energy * states * nitrobenzene * attachment * impact
OECD category: Physical chemistry
Impact factor: 9.161, year: 2020
Method of publishing: Limited access

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.
Permanent Link: http://hdl.handle.net/11104/0309070