Experimental and theoretical near-edge x-ray-absorption fine-structure studies of NO+

Rebecka Lindblad, Ludvig Kjellsson, Emiliano De Santis, Vicente Zamudio-Bayer, Bernd Von Issendorff, Stacey L. Sorensen, J. Tobias Lau, Weijie Hua, Vincenzo Carravetta, Jan Erik Rubensson, Hans Ågren, Rafael C. Couto

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review


Experimental near-edge x-ray-absorption fine-structure (NEXAFS) spectra of the nitrosonium NO+ ion are presented and theoretically analyzed. While neutral NO has an open shell, the cation is a closed-shell species, which for NEXAFS leads to the simplicity of a closed-shell spectrum. Compared to neutral NO, the electrons in the cation experience a stronger Coulomb potential, which introduces a shift of the ionization potential towards higher energies, a depletion of intensity in a large interval above the π∗ resonance, and a shift of the σ∗ resonance from the continuum to below the ionization threshold. NEXAFS features at the nitrogen and oxygen K edges of NO+ are compared, as well as NEXAFS features at the nitrogen edges of the isoelectronic closed-shell species NO+, N2, and N2H+.

TidskriftPhysical Review A
StatusPublished - 2022 okt.

Ämnesklassifikation (UKÄ)

  • Atom- och molekylfysik och optik


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