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Title: Identification of the core hole excited states of N[sub 2]: A failure of the equivalent core approximation

Journal Article · · Journal of Chemical Physics; (United States)
DOI:https://doi.org/10.1063/1.466757· OSTI ID:7068229
; ; ;  [1]
  1. Department of Chemistry, State University of New York, Stony Brook, New York 11794-3400 (United States)

Monochromatic soft x-rays were used to excite the nitrogen molecule at resonances near the [ital K]-ionization edge. The absorption anisotropy parameter [beta] was determined from the simultaneous measurement of the photofragment flux emanating from the x-ray/molecular-beam interaction region along two axes, one parallel and the other perpendicular to the electric vector of the polarized synchrotron radiation. The value of the anisotropy parameter identifies the symmetry species of a resonance and allows the core-hole excited states to be assigned from experimental data. These data force a new assignment of Rydberg states and reveal a failure of the equivalent core approximation.

OSTI ID:
7068229
Journal Information:
Journal of Chemical Physics; (United States), Vol. 100:11; ISSN 0021-9606
Country of Publication:
United States
Language:
English