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Algebraic description of anharmonic stretching vibrations

Xi-Wen Hou·Shi-Hai Dong·Zhong-Qi Ma
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Abstract

A U(2) algebraic model is presented to describe stretching vibrations of XY$_n$ (n=2, 3, and 4) systems, where anharmonic interactions between the bond modes are considered. This model in a limit corresponds to an anharmonically coupled local mode model. As an example, the model for a molecule XY$_4$ is applied to recently observed spectra of methane in both gas and liquid phases, and the results obtained are in good agreement with the experiments.

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Xi-Wen Hou, Shi-Hai Dong, Zhong-Qi Ma. 1999-04-12. Algebraic description of anharmonic stretching vibrations. https://doi.org/10.1006/jmsp.1999.7811

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