Potassium, compound with rubidium (1:1)
- Formula: KRb
- Molecular weight: 124.5661
- IUPAC Standard InChI: InChI=1S/K.Rb.2H
- IUPAC Standard InChIKey: WOKFLZOMQQQYRV-UHFFFAOYSA-N
- CAS Registry Number: 12333-39-0
- Chemical structure:
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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 January, 1977
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffuse absorption band at 20160 cm-1 | ||||||||||||
| ↳Walter and Barratt, 1928 | ||||||||||||
| X 1Σ+ | (75.5) 1 | (4.07) 1 | ||||||||||
Notes
| 1 | Interpolated values based on the constants for K2 and Rb2 Cavaliere, Ferrante, et al., 1975. |
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.
Walter and Barratt, 1928
Walter, J.M.; Barratt, S.,
The existence of intermetallic compounds in the vapour state. The spectra of the alkali metals, and of their alloys with each other,
Proc. R. Soc. London A, 1928, 119, 257. [all data]
Cavaliere, Ferrante, et al., 1975
Cavaliere, P.; Ferrante, G.; Lo Cascio, L.,
Interpolated values of spectroscopic constants of asymmetric alkali molecules and molecular ions,
J. Chem. Phys., 1975, 62, 4753. [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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