Beryllium bromide
- Formula: BeBr
- Molecular weight: 88.916
- CAS Registry Number: 13814-49-8
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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 April, 1976
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A 2Πr | 26554 1 | 695 H | 5.2 | [0.5332] 2 | [0.00000131] | [1.9763] | A → X R | 26543.3 H | ||||
| ↳Reddy and Rao, 1968; missing citation; missing citation | ||||||||||||
| 26353 1 | 702 H | 4.4 | [0.5332] 2 | [0.00000131] | [1.9763] | A → X R | 26346.1 H | |||||
| ↳Reddy and Rao, 1968; missing citation; missing citation | ||||||||||||
| X 2Σ+ | 0 | 715 H | 3.8 | [0.5459] 2 | [0.00000131] | [1.953] | ||||||
Notes
| 1 | A0=+l98.0. |
| 2 | Λ-type doubling in 2Π1/2, Δνef(v=0) = (+)0.030(J+1/2); details in Carleer, Herman, et al., 1975. |
| 3 | Spin-splitting constant γ0 = +0.0242. |
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.
Reddy and Rao, 1968
Reddy, Y.P.; Rao, P.T.,
The emission spectrum of the BeBr molecule excited in the presence of argon,
J. Phys. B:, 1968, 1, 482. [all data]
Carleer, Herman, et al., 1975
Carleer, M.; Herman, M.; Colin, R.,
Rotational analysis of the A2Π-X2Σ+ band system of the BeBr molecule,
Can. J. Phys., 1975, 53, 1321. [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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