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

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...525..539g&link_type=abstract

The Astrophysical Journal, Volume 525, Issue 1, pp. 539-542.

Astronomy and Astrophysics

Astronomy

4

Methods: Laboratory, Molecular Data, Molecular Processes

Scientific paper

The Δv=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 wave functions obtained by the diagonalization of a vibration-rotation energy matrix up to v=40. When the permanent dipole moment of 1.46 D was used, the vibrational transition moment μ10 was determined to be -0.151(10) D, with 1 standard deviation in parentheses.

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