Electric dipole moment of SO2 in ground and excited vibrational states
- 15 March 1979
- journal article
- conference paper
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 70 (6) , 2740-2747
- https://doi.org/10.1063/1.437860
Abstract
Radiofrequency electric resonance spectra of SO2 molecular beams have been observed for a number of rotational levels of the (000), (100), (010), (001), (200), (110), (200), and (011) vibrational states. Heated supersonic nozzle beams of SO2 in argon were found to give enhanced signal‐to‐noise ratios. Stark effect measurements for the vibrational ground state give μ000=1.63305(4) D and polarizability anisotropies of αaa−αbb=1.62(40) Å3 and αaa−αcc=0.1(7) Å3. The dipole moment data for excited vibrational states can be expressed as μ=1.62673+0.00017(v1+1/2) − 0.00684(v2+1/2) + 0.01943(v3+1/2) − 0.00002(v1+1/2)2 + 0.00002(v1+1/2) (v2+1/2) − 0.00003(v2+1/2)2 − 0.00012(v2+1/2) (v3+1/2). By combining the Stark effect data with infrared intensity measurements, the electric dipole moment function for SO2 through second derivative terms has been determined.Keywords
This publication has 20 references indexed in Scilit:
- Analysis of the 4-μm ν1 + ν3 combination band of SO2Journal of Molecular Spectroscopy, 1977
- The fluorescence excitation spectrum of rotationally cooled NO2The Journal of Chemical Physics, 1975
- Dipole moment function of carbonyl sulphideMolecular Physics, 1973
- Dipole moment derivatives for SO2Chemical Physics Letters, 1973
- Higher-order vibration intensities of polyatomic moleculesJournal of Molecular Spectroscopy, 1973
- Contribution de l'anharmonicité mécanique à l'intensité absolue des bandes d'absorption infrarouge des molécules triatomiques de symétrie C2vJournal de Physique, 1971
- Microwave spectrum of sulfur dioxide in doubly excited vibrational states and determination of the γ constantsJournal of Molecular Spectroscopy, 1969
- The dipole moment of sulphur dioxideAustralian Journal of Chemistry, 1969
- Electric Dipole Moment of Carbonyl SulfideThe Journal of Chemical Physics, 1968
- The polarization of laser light scattered by gasesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1966