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arXiv physics/9904020physics.chem-ph
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分子振动光谱的费米共振代数模型

Fermi resonance-algebraic model for molecular vibrational spectra

Xi-Wen Hou, Shi-Hai Dong, Zhong-Qi Ma

摘要:

提出了一个费米共振代数模型,其中每个键的振动用一个U(2)代数来描述,并考虑了伸缩模和弯曲模之间的费米共振.用弯曲分子XY_2和弯曲分子XY_3模型分别拟合了最近观测到的水分子和砷化氢(AsH_3)的振动光谱,并与其它模型的结果进行了比较。计算表明,代数方法可以作为一种有效的方法来描述分子振动的小标准偏差。

英文摘要:

A Fermi resonance-algebraic model is proposed for molecular vibrations, where a U(2) algebra is used for describing the vibrations of each bond, and Fermi resonances between stretching and bending modes are taken into account. The model for a bent molecule XY_2 and a molecule XY_3 is successfully applied to fit the recently observed vibrational spectrum of the water molecule and arsine (AsH_3), respectively, and results are compared with those of other models. Calculations show that algebraic approaches can be used as an effective method for describing molecular vibrations with small standard deviations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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