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Title: Algebraic approach to molecular rotation-vibration spectra. II. Triatomic molecules

Journal Article · · J. Chem. Phys.; (United States)
DOI:https://doi.org/10.1063/1.446164· OSTI ID:5518210

The algebraic approach to molecular rotation-vibration spectra introduced in a previous article is extended from di- to tri- and polyatomic molecules. The spectrum generating algebra appropriate to triatomic molecules U(4)xU(4) is explicitly constructed. Its dynamical symmetries and their relation to rigid, nonrigid, linear, and nonlinear structures are discussed. Applications to the spectra of HCN, CO/sub 2/, and H/sup +//sub 3/ are considered. In particular, it is shown that the algebraic description can account for the Fermi resonances occurring in CO/sub 2/. Some remarks are made on the spectrum generating algebras appropriate to polyatomic molecules.

Research Organization:
Kernfysisch Versneller Instituut, Rijksuniversiteit Groningen, The Netherlands
OSTI ID:
5518210
Journal Information:
J. Chem. Phys.; (United States), Vol. 79:6
Country of Publication:
United States
Language:
English