The Rotational Spectrum of Chlorine Nitrate (CIONO₂) in the Four Lowest nv₉ Polyads

Authors

Zbigniew Kisiel
Ewa Bialkowska Jaworska
Rebecca A. H. Butler
Douglas T. Petkie, Wright State University - Main CampusFollow
Paul Helminger
Ivan Medvedev, Wright State University - Main CampusFollow
Frank C. De Lucia

Document Type

Article

Publication Date

4-2009

Abstract

The analysis of the recently recorded 78–378 GHz broadband spectrum of ClONO₂ has been extended to cover rotational transitions in all 14 excited vibrational states up to 650 cm⁻¹ above the ground state. We report new measurements and analysis of the 2ν₉ and 3ν₉ dyads, and first assignment and analysis for the 4ν₉ and 5ν₉ triads. The polyad fits encompass a total of over 20 000 newly measured transition frequencies and spectroscopic constants are reported for 10 vibrationally excited states in each of ³⁵ClONO₂ and³⁷ClONO₂. All polyads were fitted with a new coupling scheme between the perturbing states combining c-axis Coriolis and Fermi interactions. The scheme is validated by multiple tests of the physical significance of the derived parameters and it results in improved deviations of fits and significant reduction in the number of adjustable parameters.

Repository Citation

Kisiel, Z., Jaworska, E. B., Butler, R. A., Petkie, D. T., Helminger, P., Medvedev, I., & De Lucia, F. C. (2009). The Rotational Spectrum of Chlorine Nitrate (CIONO₂) in the Four Lowest nv₉ Polyads. Journal of Molecular Spectroscopy, 254 (2), 78-86.
https://corescholar.libraries.wright.edu/physics/765

DOI

10.1016/j.jms.2009.01.005