A symmetry-adapted algebraic approach to molecular spectroscopy

Details A symmetry-adapted algebraic approach to molecular spectroscopy A symmetry-adapted algebraic approach to molecular spectroscopy

1996-11-29

arxiv.org/abs/physics/9611029v1

Physics

Chemical Physics

16 pages with 4 tables, invited talk at `Symmetries in Science IX', August 6-10, 1996

Scientific paper

We apply a symmetry-adapted algebraic model to the vibrational excitations in D_3h and T_d molecules. A systematic procedure is used to establish the relation between the algebraic and configuration space formulations. In this way we have identified interaction terms that were absent in previous formulations of the vibron model. The inclusion of these new interactions leads to reliable spectroscopic predictions. We illustrate the method for the D_3h triatomic molecules, H_3^+, Be_3 and Na_3, and the T_d molecules, Be_4 and CH_4.

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