Lithium, compound with rubidium (1:1)
- Formula: LiRb
- Molecular weight: 92.409
- IUPAC Standard InChI: InChI=1S/Li.Rb.2H
- IUPAC Standard InChIKey: YNYKTELJFBLFDK-UHFFFAOYSA-N
- CAS Registry Number: 12031-70-8
- 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B | (17552) | (81) H 1 | B ← X 2 | 17500 H | ||||||||
| ↳Walter and Barratt, 1928; Weizel and Kulp, 1930 | ||||||||||||
| X 1Σ+ | 0 | (185) H 3 | ||||||||||
| ↳Dagdigian and Wharton, 1972 | ||||||||||||
Notes
| 1 | Fragment 4 |
| 2 | Dipole moment of 7Li85Rb: μel(v=0) = 4.00 D Dagdigian and Wharton, 1972, calculated Dagdigian and Wharton, 1972 with B0 = 0.2l8 Dagdigian and Wharton, 1972 estimated from Badger's rule [see, however, Cavaliere, Ferrante, et al., 1975]. Quadrupole coupling constants Dagdigian and Wharton, 1972. |
| 3 | Mol. beam re el. reson. 2 |
| 4 | Only five bands, four of which have Δv=0. |
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]
Weizel and Kulp, 1930
Weizel, W.; Kulp, M.,
Uber die bandensysteme der alkalidampfe,
Ann. Phys. (Leipzig), 1930, 4, 971. [all data]
Dagdigian and Wharton, 1972
Dagdigian, P.J.; Wharton, L.,
Molecular beam electric deflection and resonance spectroscopy of the heteronuclear alkali dimers: 39K7Li, Rb7Li, 39K23Na, Rb23Na, and 133Cs23Na,
J. Chem. Phys., 1972, 57, 1487. [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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