Terbium monoxide
- Formula: OTb
- Molecular weight: 174.9248
- CAS Registry Number: 12035-91-5
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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 |
---|---|---|---|
6.1 ± 0.7 | EI | Kordis and Gingerich, 1977 | LLK |
5.6 ± 0.1 | EI | Ackermann, Rauh, et al., 1976 | LLK |
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 June, 1975
Symbol | Meaning |
---|---|
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) |
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mostly R shaded emission bands in the region 15400 - 19000 cm-1; no analysis. | ||||||||||||
↳missing citation; Herrmann and Alkemade, 1963 | ||||||||||||
X | 0 | [824.3] 1 | ||||||||||
↳Gabelnick, Reedy, et al., 1974 |
Notes
1 | From the IR spectrum of Tb16O in argon at 15 K; for Tb18O at 781.7 cm-1. Derived constants ωe = 828.4 Gabelnick, Reedy, et al., 1974, ωexe = 2.1 Gabelnick, Reedy, et al., 1974. |
2 | Thermochemical value (mass-spectrometry) Ames, Walsh, et al., 1967, recalculated Smoes, Coppens, et al., 1969. |
References
Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, NIST Free Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Herrmann and Alkemade, 1963
Herrmann, R.; Alkemade, C.T.J.,
Chemical analysis by flame photometry [Second Revised Edition], Interscience Publishers, New York, 1963, 644. [all data]
Gabelnick, Reedy, et al., 1974
Gabelnick, S.D.; Reedy, G.T.; Chasanov, M.G.,
Infrared spectra and structure of some matrix-isolated lanthanide and actinide oxides,
J. Chem. Phys., 1974, 60, 3, 1167, https://doi.org/10.1063/1.1681128
. [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]
Notes
Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, NIST Free Links, References
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