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Gadolinium monoxide


Gas phase ion energetics 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.

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
6.7 ± 0.5EIMurad and Hildenbrand, 1980LLK
6.5 ± 0.8EIKordis and Gingerich, 1977LLK
5.8 ± 0.1EIAckermann, Rauh, et al., 1976LLK

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 January, 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 (158)Gd16O
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Large number of mostly R shaded bands in emission from 13300 to 22500 cm-1.
missing citation; missing citation
Two systems of bands with multiple heads were idenified by Piccardi, 1933 and confirmed and extended by Gatterer, Junkes, et al., 1957, Suarez and Grinfeld, 1970:
System I: 1           R 21659.3 H
Piccardi, 1933; Gatterer, Junkes, et al., 1957; Suarez and Grinfeld, 1970
System II: 2           R 20435.5 H
Piccardi, 1933; Gatterer, Junkes, et al., 1957; Suarez and Grinfeld, 1970
Assignments at longer wavelengths are less certain, and considerable disagreement exists between analyses by Piccardi, 1933 Gatterer, Junkes, et al., 1957 Suarez and Grinfeld, 1970 except in the region 15700 - 16200 cm-1 where three long sequences have been identified:
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
           R 16170 H
Piccardi, 1933; Gatterer, Junkes, et al., 1957; Suarez and Grinfeld, 1970
           R 16122 H
Piccardi, 1933; Gatterer, Junkes, et al., 1957; Suarez and Grinfeld, 1970
           R 16094 H
Piccardi, 1933; Gatterer, Junkes, et al., 1957; Suarez and Grinfeld, 1970

Notes

1nuH = 21700.5 + 748.0(v'+1/2) - 3.0(v'+1/2)2 - 830.1(v"+1/2) + 2.3(v"+1/2)2
2nuH = 20470.5 + 767.0(v'+1/2) - 4.9(v'+1/2)2 - 836.0(v"+1/2) + 2.8(v"+1/2)2
3Thermochemical value (mass-spectrom.) Ames, Walsh, et al., 1967, Smoes, Coppens, et al., 1969, Drowart, Myers, et al., 1979.

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.

Murad and Hildenbrand, 1980
Murad, E.; Hildenbrand, D.L., Dissociation energies of GdO, HoO, ErO, TmO, and LuO. Correlation of results for the lanthanide monoxide series, J. Chem. Phys., 1980, 73, 4005. [all data]

Kordis and Gingerich, 1977
Kordis, J.; Gingerich, K.A., Mass spectrometric observations of some polyatomic gaseous rare earth oxides their atomization energies, J. Chem. Phys., 1977, 66, 483. [all data]

Ackermann, Rauh, et al., 1976
Ackermann, R.J.; Rauh, E.G.; Thorn, R.J., The thermodynamics of ionization of gaseous oxides; the first ionization potentials of the lanthanide metals and monoxides, J. Chem. Phys., 1976, 65, 1027. [all data]

Piccardi, 1933
Piccardi, G., Sullo spettro dell'ossido di gadolinio, Gazz. Chim. Ital., 1933, 63, 887. [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]

Suarez and Grinfeld, 1970
Suarez, C.B.; Grinfeld, R., Contribution to the study of GdO band spectrum, J. Chem. Phys., 1970, 53, 1110. [all data]

Ames, Walsh, et al., 1967
Ames, L.L.; Walsh, P.N.; White, D., Rare earths. IV. Dissocaition energies of the gaseous monoxides of the rare earths, J. Phys. Chem., 1967, 71, 2707. [all data]

Smoes, Coppens, et al., 1969
Smoes, S.; Coppens, P.; Bergman, C.; Drowart, J., Mass spectrometric determination of the dissociation energies of the gaseous rare earth monosulphides, Trans. Faraday Soc., 1969, 65, 682. [all data]

Drowart, Myers, et al., 1979
Drowart; Myers; Szwarc; Vander Auwera-Mahieu; Uy, To be published cited in Huber and Herzberg, 1979, 1979, 229. [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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