title: Study of the dissociation of nitrous oxide following resonant excitation of the nitrogen and oxygen K-shells.
abstract: A photochemistry study on nitrous oxide making use of site-selective excitation of terminal nitrogen, central nitrogen, and oxygen 1s-->3pi excitations is presented. The resonant Auger decay which takes place following excitation can lead to dissociation of the N2O+ ion. To elucidate the nuclear dynamics, energy-resolved Auger electrons were detected in coincidence with the ionic dissociation products, and a strong dependence of the fragmentation pathways on the core-hole site was observed in the binding energy region of the first satellite states. A description based on the molecular orbitals as well as the correlation between the thermodynamical thresholds of ion formation and the first electronic states of N2O+ has been used to qualitatively explain the observed fragmentation patterns.
authors.affiliation: Department of Synchrotron Radiation Research, Institute of Physics, University of Lund, P.O. Box 118, SE-221 00 Lund, Sweden. denis.ceolin@sljus.lu.se
authors.forename: D
authors.initials: D
authors.lastname: Céolin
authors.forename: O
authors.initials: O
authors.lastname: Travnikova
authors.forename: Z
authors.initials: Z
authors.lastname: Bao
authors.forename: M N
authors.initials: MN
authors.lastname: Piancastelli
authors.forename: T
authors.initials: T
authors.lastname: Tanaka
authors.forename: M
authors.initials: M
authors.lastname: Hoshino
authors.forename: H
authors.initials: H
authors.lastname: Kato
authors.forename: H
authors.initials: H
authors.lastname: Tanaka
authors.forename: J R
authors.initials: JR
authors.lastname: Harries
authors.forename: Y
authors.initials: Y
authors.lastname: Tamenori
authors.forename: C
authors.initials: C
authors.lastname: Prümper
authors.forename: T
authors.initials: T
authors.lastname: Lischke
authors.forename: X-J
authors.initials: XJ
authors.lastname: Liu
authors.forename: K
authors.initials: K
authors.lastname: Ueda