Holmium monofluoride
- Formula: FHo
- Molecular weight: 183.92872
- CAS Registry Number: 16087-66-4
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Gas phase ion energetics data
Go To: Top, 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
View reactions leading to FHo+ (ion structure unspecified)
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 6.0 ± 0.5 | EI | Balducci, Capalbi, et al., 1969 | RDSH |
| 6.1 ± 0.3 | EI | Zmbov and Margrave, 1966 | RDSH |
Constants of diatomic molecules
Go To: Top, 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 February, 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B | 21240.9 | 502.2 H | 2.9 | B ← X 1 R | 21184.2 H | |||||||
| ↳Robbins and Barrow, 1974 | ||||||||||||
| A | 19152.77 | 539.45 Z | 4.39 | 0.24591 2 | 0.00217 | [0.0173E-5] | 2.0060 | A ← X 1 R | 19114.41 Z | |||
| ↳missing citation | ||||||||||||
| X | 0 3 | 615.28 Z | 2.603 | 0.26295 | 0.00145 | [0.0178E-5] | 1.9399 | |||||
Notes
| 1 | P, Q, and R branches. |
| 2 | Perturbations. |
| 3 | Possibly lowest component of an inverted triplet or quintet state with large spin-orbit splitting. |
| 4 | Thermochemical value Zmbov and Margrave, 1966. |
References
Go To: Top, Gas phase ion energetics data, 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.
Balducci, Capalbi, et al., 1969
Balducci, G.; Capalbi, A.; DeMaria, G.; Guido, M.,
Thermodynamics of rare-earth-carbon systems. II.The holmium-carbon and dysprosium-carbon systems,
J. Chem. Phys., 1969, 51, 2871. [all data]
Zmbov and Margrave, 1966
Zmbov, K.F.; Margrave, J.L.,
Mass spectrometric studies at high temperatures. XII.Stabilities of dysprosium, holmium, and erbium subfluorides,
J. Phys. Chem., 1966, 70, 3379. [all data]
Robbins and Barrow, 1974
Robbins, D.J.W.; Barrow, R.F.,
Absorption spectrum of gaseous holmium monofluoride,
J. Phys. B:, 1974, 7, 7, 234-235. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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