The Vibration-Rotation Energies of Polyatomic Molecules Part II. Accidental Degeneracies
- 1 October 1945
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 68 (7-8) , 181-191
- https://doi.org/10.1103/physrev.68.181
Abstract
The first- and second-order corrections to the vibration-rotation energies of polyatomic molecules are dealt with in instances where two or more vibration frequencies are accidentally degenerate. The method of the contact transformation employed in Part I is extended and made applicable to the two types of first-order resonance interactions, i.e., the Fermi-Dennison type and the Coriolis type. The components of the energy matrix are evaluated in general, and examples are considered to demonstrate how the actual energies may be evaluated.Keywords
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