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Observation of doubly excited Rydberg states of N2O by positive ion–negative ion coincidence spectroscopy

1994; American Institute of Physics; Volume: 100; Issue: 12 Linguagem: Inglês

10.1063/1.466736

1520-9032

Hiroaki Yoshida, Koichiro Mitsuke,

Advanced Chemical Physics Studies

Ion-pair formation processes of N2O are studied in detail using synchrotron radiation in the 24–34 eV photon energy range. Positive ion–negative ion coincidence (PINICO) spectroscopy makes it possible to distinguish dissociation into three bodies, O−+N++N, from dissociation into two bodies, O−+N+2. The photodissociation efficiency curves for the two processes are measured. Several resonance-like peaks in the curves are assigned to doubly excited Rydberg states of N2O from an analysis of kinetic energy release in dissociation.