The Energy Levels of the v₅/2v₉ Dyad of HNO₃ from Millimeter and Submillimeter Rotational Spectroscopy

Authors

Douglas T. Petkie, Wright State University - Main CampusFollow
Thomas M. Goyette
Paul Helminger
Herb M. Pickett
Frank C. De Lucia

Document Type

Article

Publication Date

7-2001

Abstract

In this paper we show that the rotational structure of the ν₅/2ν₉ infrared band near 11 μm can be synthesized to high accuracy from pure rotational measurements in the millimeter- and submillimeter-wave region. The analysis uses an internal axis system Hamiltonian that accounts for the rotational dependence of the torsional splitting in 2ν₉, the induced torsional splitting in ν₅, and all of the infrared line positions, including those in the regions of strongest mixing and of highest excitation. This model also predicts the strength of the 2ν₉ infrared band due to the strong Fermi mixing with ν₅. The analysis is based on the 2317 millimeter/submillimeter lines and uses the well-documented SPFIT routines of JPL.

Repository Citation

Petkie, D. T., Goyette, T. M., Helminger, P., Pickett, H. M., & De Lucia, F. C. (2001). The Energy Levels of the v₅/2v₉ Dyad of HNO₃ from Millimeter and Submillimeter Rotational Spectroscopy. Journal of Molecular Spectroscopy, 208 (1), 121-135.
https://corescholar.libraries.wright.edu/physics/782

DOI

10.1006/jmsp.2001.8367