The A2 pi-X2 Sigma/+/ system and dissociation energy of magnesium hydride

Details The A2 pi-X2 Sigma/+/ system and dissociation energy of magnesium hydride The A2 pi-X2 Sigma/+/ system and dissociation energy of magnesium hydride

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26as...26..389b&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 26, Dec. 1976, p. 389-397. Research supported by the National Research Counc

Astronomy and Astrophysics

Astrophysics

38

Dissociation, Magnesium Compounds, Metal Hydrides, Molecular Energy Levels, Molecular Spectra, Solar Spectra, Ground State, Molecular Rotation, Spectral Bands, Tables (Data)

Scientific paper

Laboratory measurements of the A-X and B'-X systems of MgH are reported which provide the relative energies of the first seven ground-state vibrational levels of the molecule. Vacuum wavenumbers for the assigned lines in 13 bands of the A2 pi-X2 Sigma(+) system are given along with term values for the two states involved. Rotational constants for the various vibrational levels are determined, vibrational constants are derived for the two cited states, and a value of 1.33 eV is obtained for the dissociation energy of MgH. Excellent agreement between theoretical and experimental values is indicated.

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