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Tungsten oxide


Gas phase thermochemistry data

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

Quantity Value Units Method Reference Comment
Deltafgas425.09kJ/molReviewChase, 1998Data last reviewed in September, 1966
Quantity Value Units Method Reference Comment
gas,1 bar248.20J/mol*KReviewChase, 1998Data last reviewed in September, 1966

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 1200.1200. - 6000.
A 22.5598444.21651
B 32.66323-6.917533
C -27.275332.375437
D 8.156542-0.191794
E 0.034861-3.475499
F 417.2573404.0928
G 267.0948292.8854
H 425.0944425.0944
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1966 Data last reviewed in September, 1966

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Constants of diatomic molecules, References, Notes

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

Data compiled as indicated in comments:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
9. ± 1.EIDeMaria, Burns, et al., 1960RDSH

Constants of diatomic molecules

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References, Notes

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
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
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 rarrow X which was also identified Gatterer and Krishnamurty, 1952 in the gas phase spectrum.
G  [933]         G larrow X 23794
Weltner and McLeod, 1965
F  [982] 1 2        F larrow X 23366
Weltner and McLeod, 1965
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
E  [944] 1 2        E larrow X 21509
Weltner and McLeod, 1965
D 20834.2 933.0 H 6.5        D lrarrow X R 20799.9 H
Gatterer and Krishnamurty, 1952; Weltner and McLeod, 1965
C  [931] 2        C larrow X 19190
Weltner and McLeod, 1965
B  [955] 3 2        B larrow X 17283
Weltner and McLeod, 1965
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A  [951] 4 2        A larrow X 17132 4
Weltner and McLeod, 1965
X 0 1059.9 H 3.1         

Notes

1Strong interaction between levels of E and F.
2Higher DeltaG 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 DeltaG. 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.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [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]

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]

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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