Multiplet‐specific shape resonant features in photoionization of NO
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We report photoionization cross sections and asymmetry parameters for the 5σ and 4σ levels of NO obtained using numerical photoelectron continuum functions. For the 5σ orbital multiplet-specific potentials lead to shape-resonant cross sections which show significant nonstatistical multiplet behavior. This behavior, which reflects the sensitivity of shape resonances to the exchange component of the molecular ion potential, is most prominently characterized by resonance peaks at substantially different photoelectron kinetic energies in the two multiplet channels. Comparison of the calculated cross sections with available experimental data for NO shows somewhat poorer agreement than has been seen in the photoionization of closed-shell systems such as N2 and CO. This difference reflects the more complex nature of photoionization processes in open-shell molecules. © 1985 American Institute of Physics.
author list (cited authors)
Smith, M. E., McKoy, V., & Lucchese, R. R.