Tungsten oxide

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 July, 1975

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 (184)W16O
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
R shaded bands in gas phase emission from 12900 to 24400 cm-1.
↳Gatterer and Krishnamurty, 1952; Vittalachar and Krishnamurthy, 1954; Gatterer, Junkes, et al., 1957; Foster and Gaydon, 1979
The following states were observed in rare gas matrices Weltner and McLeod, 1965. Frequencies are for solid neon, except for D → X which was also identified Gatterer and Krishnamurty, 1952 in the gas phase spectrum.
G  [933]         G ← X 23794
↳Weltner and McLeod, 1965
F  [982] 1 2        F ← X 23366
↳Weltner and McLeod, 1965
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
E  [944] 1 2        E ← X 21509
↳Weltner and McLeod, 1965
D 20834.2 933.0 H 6.5        D ↔ X R 20799.9 H
↳Gatterer and Krishnamurty, 1952; Weltner and McLeod, 1965
C  [931] 2        C ← X 19190
↳Weltner and McLeod, 1965
B  [955] 3 2        B ← X 17283
↳Weltner and McLeod, 1965
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
A  [951] 4 2        A ← X 17132 4
↳Weltner and McLeod, 1965
X 0 1059.9 H 3.1         

Notes

1Strong interaction between levels of E and F.
2Higher ΔG and deperturbed values may be found in Weltner and McLeod, 1965.
3Strong interaction between levels of A and B.
4Lowest observed level (v=37) and ΔG. Weak system; the intensities of the bands derive mostly from the strong A~B interaction.
5Thermochemical value (mass-spectrometry) DeMaria, Burns, et al., 1960.

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.

Gatterer and Krishnamurty, 1952
Gatterer, A.; Krishnamurty, S.G., Two band systems of tungsten oxide, Nature (London), 1952, 169, 543. [all data]

Vittalachar and Krishnamurthy, 1954
Vittalachar, V.; Krishnamurthy, S.G., Band spectrum of tungsten oxide, Curr. Sci., 1954, 23, 357. [all data]

Gatterer, Junkes, et al., 1957
Gatterer, A.; Junkes, J.; Salpeter, E.W., Molecular spectra of metallic oxides, Specola Vaticana, Citta del Vaticano, 1957, 0. [all data]

Foster and Gaydon, 1979
Foster; Gaydon, Quoted in Pearse and Gaydon, 1963 cited in Huber and Herzberg, 1979, 1979, 661. [all data]

Weltner and McLeod, 1965
Weltner, W., Jr.; McLeod, D., Jr., Spectroscopy of tungsten oxide molecules in neon and argon matrices at 4° and 20°K, J. Mol. Spectrosc., 1965, 17, 2, 276, https://doi.org/10.1016/0022-2852(65)90167-0 . [all data]

DeMaria, Burns, et al., 1960
DeMaria, G.; Burns, R.P.; Drowart, J.; Inghram, M.G., Mass spectrometric study of gaseous molybdenum, tungsten, and uranium oxides, J. Chem. Phys., 1960, 32, 1373. [all data]

Pearse and Gaydon, 1963
Pearse, R.W.B.; Gaydon, A.G., The identification of molecular spectra, Third Edition, Pub. John Wiley & Sons, Inc., New York, 1963, 0. [all data]

Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules, Van Nostrand Reinhold Company, New York, 1979, 716. [all data]

Notes

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