Resonant Auger decay of iodobenzene below the I 4d edge

Pratt, Stephen T.; Jacovella, Ugo; Gans, Bérenger; Bozek, John D.; Holland, David M. P.

doi:10.1063/5.0203661

Resonant Auger decay of iodobenzene below the I 4d edge

Journal Article · Thu May 02 00:00:00 EDT 2024 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/5.0203661· OSTI ID:2497717

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Argonne National Laboratory (ANL), Argonne, IL (United States)
Univ. Paris-Saclay, Orsay (France); Centre National de la Recherche Scientifique (CNRS) (France). Institut des Sciences Moléculaires d’Orsay
Synchrotron SOLEIL, Gif-sur-Yvette (France)
Science and Technology Facilities Council (STFC), Daresbury (United Kingdom). Daresbury Lab.

New data are presented on the resonant Auger decay of iodobenzene (C₆H₅I) in the region of the I 4d^–1 ionization threshold. The excited molecules decay by participator and spectator processes to populate single-hole valence states and two-hole, one-particle excited states of the cation, providing new information on the structure of C₆H₅I⁺. Excitation of dissociative C₆H₅I (I 4d_5/2,3/2^–1)σ* resonances can, in principle, result in ultrafast dissociation to C₆H₅ + I** and the subsequent autoionization of I**, but no evidence for this process is observed. Finally, the results are compared with our recent study of the resonant Auger decay of methyl iodide (CH₃I).

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: Science and Technology Facilities Council (STFC) (United Kingdom); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 2497717

Journal Information:: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 17 Vol. 160; ISSN 0021-9606

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Auger decay
electron spectroscopy
iodobenzene
photoelectron spectroscopy
photoionization
ultrafast dissociation

Resonant Auger decay of iodobenzene below the I 4d edge

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