Fermi resonance-algebraic model for molecular vibrational spectra

Xiwen Hou, Shihai Dong, Mi Xie, Zhongqi Ma

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

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 XY2 and a molecule XY3 is successfully applied to fitting the recently observed vibrational spectrum of the water molecule and arsine (AsH3), respectively, and the results are compared with those of other models. Calculations show that algebraic approaches can be used as an effective method to describe molecular vibrations with small standard deviations.

Original languageEnglish
Pages (from-to)207-212
Number of pages6
JournalScience in China, Series A: Mathematics, Physics, Astronomy
Volume42
Issue number2
DOIs
StatePublished - Feb 1999
Externally publishedYes

Keywords

  • Fermi resonance
  • U (2) algebra
  • Vibrational spectra

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