Vibrational Transition Moment of the CH Radical Determined From the Herman-Wallis Effect

Details Vibrational Transition Moment of the CH Radical Determined From the Herman-Wallis Effect Vibrational Transition Moment of the CH Radical Determined From the Herman-Wallis Effect

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999stin...0070358g&link_type=abstract

Technical Report, NRO-492

Physics

Dipole Moments, Vibration, Emission Spectra, Infrared Radiation, Line Spectra, Radicals, Absorption Spectra, Fourier Transformation, Molecular Spectra, Rotation, Standard Deviation, Wave Functions

Scientific paper

The Deltaupsilon = 1 emission spectrum of the CH radical was observed by a Fourier-transform spectrometer. The Herman-Wallis effect observed as intensity difference in P and R branch transitions was analyzed to give the transition dipole moment, where we used a new method to calculate intensities of vibration- rotation spectral lines with wavefunctions obtained by a diagonalization of a vibration-rotation energy matrix up to v=40. When the permanent dipole moment of 1.46 Debye was used, the vibrational transition moment mu10 was determined to be -0.151(10) Debye, with one standard deviation in parentheses.

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