| Popis: |
Herman–Wallis factors describing the effects of vibration–rotation interaction on the intensities of infrared and Raman spectra of diatomic molecules can be useful in analyzing spectroscopic data. Accurate analytic approximations based on the Dunham potential model and a series expansion of the transition operator have been derived by many authors using different theoretical techniques. However, when the methods or the theoretical results become too cumbersome to apply, they lose their usefulness, especially now that accurate numerical programs to solve the radial Schrodinger equation and calculate the matrix elements directly are available. In the present paper, we comment briefly on some recent examples of the good use of Herman–Wallis factors as well as some misuses. |
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