Spectral Expansion of the Rovibrational Energy of Diatomic Molecules Described by Morse Potential
M. Molski
Department of Theoretical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 PoznaƄ, Poland
Received: June 3, 1993; revised version: July 26, 1993
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On the basis of the deformable body model and the Morse potential approximation a six-parametric spectral expansion of the rovibrational energy of diatomic molecules, competitive to the standard Dunham approach, is proposed. The considered formula takes into account the centrifugal distortion effect and anharmonic corrections, which permit investigation of the molecular spectra over a wide range of rotational and vibrational states.
DOI: 10.12693/APhysPolA.84.1041
PACS numbers: 33.10.Cs, 33.10.Jz