Values of the re and αe equilibrium structural parameters of the PH3 molecule have been determined on the basis of experimental data on the fundamental bands of the PH2D and PHD2 species only, without any knowledge of the force-constant-type parameters of the PH3 molecule. The functions of the equilibrium rotational parameters Ae, Be, and Ce have been determined. These functions are totally independent of the values of any resonance interaction parameters. Then these functions have been used to determine re and αe constants. The obtained values re = (1.416 776 ± 0.000 164) Å and αe = (93.56 ± 0.29)° differ a little from those found in the earlier literature.
- Spectroscopic parameters
- Structural parameters
- Vibration-rotation spectra
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry