Algebraic approach to molecular rotation-vibration spectra. I. Diatomic molecules

F. Iachello*, R. D. Levine

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

369 Scopus citations

Abstract

An algebraic approach to molecular rotation-vibration spectra, similar to that used in the analysis of nuclear rotation-vibration spectra, is suggested. The spectrum generating algebra appropriate to diatomic molecules U(4) is constructed. Its two dynamical symmetries O(4) and U(3) are discussed and their relation to rigid and nonrigid structures is investigated. It is shown how other properties, such as intensities of dipole radiation and state-to-state excitation probabilities, can be evaluated.

Original languageEnglish
Pages (from-to)3046-3055
Number of pages10
JournalThe Journal of Chemical Physics
Volume77
Issue number6
DOIs
StatePublished - 1982

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