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barium sulphide


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, 1976

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 138Ba32S
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
B 1Sigma+ 27060.29 254.10 Z 0.438  0.08604 0.00044    2.7475 B larrow X R 26997.74 Z
Barrow, Burton, et al., 1971
A 1Sigma+ 14493 294.3 1 3.08  0.09353 1 0.00072    2.635 A larrow X R 14450
Clements and Barrow, 1968; Barrow, Burton, et al., 1971
a (3Pi0+) 14570 2 (235) 3   (0.0785) 3     (2.88)  
X 1Sigma+ 0 379.42 Z 0.8842  0.10331 0.0003188  0.306E-07  2.5074 4  
Melendres, Hebert, et al., 1969

Notes

1Extensive perturbations arising from successive vibrational levels of three perturbing states or sub-states of smaller B values.
2missing note
3From perturbations in A 1Sigma+; vibrational numbering unknown.
4Mol. beam el. reson. 6
5Thermochemical value (mass-spectrom.) Colin, Goldfinger, et al., 1964, corrected to a 1Sigma ground state.
6muel(v) = [10.853 + 0.021(v+1/2)]D.

References

Go To: Top, Constants of diatomic molecules, Notes

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

Barrow, Burton, et al., 1971
Barrow, R.F.; Burton, W.G.; Jones, P.A., Electronic spectrum of gaseous BaS. Rotational analysis of bands of the A-X and B-X systems, Trans. Faraday Soc., 1971, 67, 902. [all data]

Clements and Barrow, 1968
Clements, R.M.; Barrow, R.F., The internuclear distance in gaseous barium sulphide, Chem. Commun., 1968, 1408. [all data]

Melendres, Hebert, et al., 1969
Melendres, C.A.; Hebert, A.J.; Street, K., Jr., Radio-frequency Stark spectra and dipole moment of BaS, J. Chem. Phys., 1969, 51, 855. [all data]

Colin, Goldfinger, et al., 1964
Colin, R.; Goldfinger, P.; Jeunehomme, M., Mass-spectrometric studies of vaporization of the sulphides of calcium, strontium and barium. The dissociation energy of S2 and SO, Trans. Faraday Soc., 1964, 60, 306. [all data]


Notes

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