Holmium monofluoride
- Formula: FHo
- Molecular weight: 183.92872
- CAS Registry Number: 16087-66-4
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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 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, 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.
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]
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]
Notes
Go To: Top, Constants of diatomic molecules, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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