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Spectroscopic characterization of peroxynitrous acid in cis-perp configurations
Eunice X J Li1, Ian M Konen, Marsha I Lester
1Department of Chemistry, University of Pennsylvania, Philadelphia, 19104-6323, USA.
Abstract:
This paper presents experimental evidence, supported by two-dimensional theoretical calculations, that HOONO can be observed in cis-perp (cp) configurations in a pulsed supersonic expansion. The spectral properties (transition frequency, rotational constants, and transition type) of OH overtone transitions originating from a state with predominately cp character are predicted theoretically and compared with those associated with a weak feature at 6996.2 cm(-1) observed experimentally using infrared action spectroscopy. This spectral feature is attributed to HOONO in cp configurations based on its vibrational frequency, rotational band contour, and resultant OH product state distribution.
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