title: Metastable states in NO2+ probed with Auger spectroscopy.
abstract: High-resolution N 1s and O 1s photoelectron spectra (PES) of NO are presented together with spectra of the subsequent Auger decay. The PES are analyzed by taking spin-orbit splitting of the (2)Π ground state into account providing detailed information on equilibrium distances, vibrational energies, and lifetime widths of the core-ionized states. In the Auger electron spectra (AES) transitions to five metastable dicationic final states are observed, with two of them previously unobserved. A Franck-Condon analysis of the vibrational progressions belonging to these transitions provides detailed information on the potential-energy curves of the dicationic final states as well as on the relative Auger rates. The present calculations of the potential-energy curves of NO(2+) agree well with the experimental results and allow an assignment of the two hitherto unresolved Auger transitions to excited states of NO(2+), C(2)Σ(+)and c(4)Π.
authors.affiliation: Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin-Dahlem, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Püttner
authors.forename: V
authors.initials: V
authors.lastname: Sekushin
authors.forename: H
authors.initials: H
authors.lastname: Fukuzawa
authors.forename: T
authors.initials: T
authors.lastname: Uhlíková
authors.forename: V
authors.initials: V
authors.lastname: Špirko
authors.forename: T
authors.initials: T
authors.lastname: Asahina
authors.forename: N
authors.initials: N
authors.lastname: Kuze
authors.forename: H
authors.initials: H
authors.lastname: Kato
authors.forename: M
authors.initials: M
authors.lastname: Hoshino
authors.forename: H
authors.initials: H
authors.lastname: Tanaka
authors.forename: T D
authors.initials: TD
authors.lastname: Thomas
authors.forename: E
authors.initials: E
authors.lastname: Kukk
authors.forename: Y
authors.initials: Y
authors.lastname: Tamenori
authors.forename: G
authors.initials: G
authors.lastname: Kaindl
authors.forename: K
authors.initials: K
authors.lastname: Ueda
mesh_terms: D004583:Electrons; D009573:Nitrites / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D014732:Vibration
chemical_list: D009573:Nitrites