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Rubidium, compound with sodium (1:1)


Constants of diatomic molecules

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through March, 1977

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for 23Na(85)Rb
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A second system (18400 - 18800) has not been analyzed.
A (1Pi) 16421.8 61.49 H 0.945        (A larrow X) (R) 16399.1 H
Kusch, 1936
X (1Sigma) 0 106.64 H 0.455 1         
Dagdigian and Wharton, 1972

Notes

1Mol. beam el. deflection 2
2mu2/B = 6.6E-19 cm3; assuming B = 0.0734 cm-1 Dagdigian and Wharton, 1972 derive an electric dipole moment of 3.1 D.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Kusch, 1936
Kusch, P., The band spectra of rubidium and of its combinations with other alkali metals, Phys. Rev., 1936, 49, 218. [all data]

Dagdigian and Wharton, 1972
Dagdigian, P.J.; Wharton, L., Molecular beam electric deflection and resonance spectroscopy of the heteronuclear alkali dimers: 39K7Li, Rb7Li, 39K23Na, Rb23Na, and 133Cs23Na, J. Chem. Phys., 1972, 57, 1487. [all data]


Notes

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