Monomanganese monofluoride
- Formula: FMn
- Molecular weight: 73.936448
- CAS Registry Number: 13569-25-0
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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 March, 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Emission bands 2 | 1 R | 20292.1 HQ | ||||||||||
| ↳missing citation | ||||||||||||
| Emission bands | 3 R | 20023.3 HR | ||||||||||
| ↳missing citation | ||||||||||||
| 3 R | 19971.6 HQ | |||||||||||
| ↳missing citation | ||||||||||||
| Emission bands 5 | 4 R | 14502.7 HQR | ||||||||||
| ↳missing citation | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
| Emission bands | 6 VR | 12179.6 HQ | ||||||||||
| ↳missing citation | ||||||||||||
| 6 VR | 12153.6 HP | |||||||||||
| ↳missing citation | ||||||||||||
| B (7Σ) | 41231.5 | 637.2 H | 4.46 | B ← X V | 41240.3 H | |||||||
| ↳missing citation | ||||||||||||
| A (7Π) | 28465.0 7 | 673 8 H | 4 | A ↔ X VR | 28491.9 9 H | |||||||
| ↳Rochester and Olsson, 1939; Bacher and Miescher, 1947; missing citation; missing citation | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
| X (7Σ) | 0 | 618.8 10 H | 3.01 | |||||||||
Notes
| 1 | Complex bands; R, Q bands. |
| 2 | Emission bands in the visible and near infrared: νe = 20298.2; ωe'=637.1, ωe'xe' = 1.9; ωe"=649.1, ωe"xe" = 1.5; |
| 3 | Two sequences of single heads, interpreted as R and Q heads. |
| 4 | Four heads. |
| 5 | νe = 14527.7; ωe'=595.4, ωe'xe' = 3.15; ωe"=645.4, ωe"xe" = 3.2; |
| 6 | Single sequence of bands having apparently both Q and P (or R) heads. |
| 7 | |A| ~25. |
| 8 | Average of Bacher, 1948 and Rao, Reddy, et al., 1962. |
| 9 | Strongest head of F4 component. |
| 10 | From B-X system. |
| 11 | Thermochemical value (mass spectrom.) Kent, Ehlert, et al., 1964. |
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.
Rochester and Olsson, 1939
Rochester, G.D.; Olsson, E.,
Das Bandenspektrum des MnF,
Z. Phys., 1939, 114, 495. [all data]
Bacher and Miescher, 1947
Bacher, J.; Miescher, E.,
Komplexspektren der manganhalogenide,
Helv. Phys. Acta, 1947, 20, 245. [all data]
Bacher, 1948
Bacher, J.,
Komplexspektren zweiatomiger manganhalogenide,
Helv. Phys. Acta, 1948, 21, 379. [all data]
Rao, Reddy, et al., 1962
Rao, S.V.K.; Reddy, S.P.; Rao, P.T.,
The complex band system of MnF in the near ultra-violet,
Proc. Phys. Soc. London, 1962, 79, 741. [all data]
Kent, Ehlert, et al., 1964
Kent, R.A.; Ehlert, T.C.; Margrave, J.L.,
Mass spectrometric studies at high temperatures. V. The sublimation pressure of manganese(II) fluoride and the dissociation energy of manganese(I) fluoride,
J. Am. Chem. Soc., 1964, 86, 5090. [all data]
Notes
Go To: Top, Constants of diatomic molecules, References
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