Cesium, compound with rubidium (1:1)
- Formula: CsRb
- Molecular weight: 218.3733
- IUPAC Standard InChI: InChI=1S/Cs.Rb.2H
- IUPAC Standard InChIKey: VTZYVEBKVJCGFY-UHFFFAOYSA-N
- CAS Registry Number: 12331-83-8
- Chemical structure:
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Gas phase ion energetics data
Go To: Top, Constants of diatomic molecules, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
B - John E. Bartmess
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.478 ± 0.020 | LPES | Eaton, Sarkas, et al., 1992 | Vertical Detachment Energy: 0.531±0.015 eV.; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 3.7 ± 0.1 | PI | Kappes and Schumacher, 1985 | LBLHLM |
| 3.7 ± 0.1 | PI | Kappes, Radi, et al., 1985 | LBLHLM |
Constants of diatomic molecules
Go To: Top, Gas phase ion energetics data, References, Notes
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 July, 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Evidence for an additional state in the 19000 - 22000 cm-1 region by two-photon ionization. | ||||||||||||
| ↳Granneman, Klewer, et al., 1976 | ||||||||||||
| A | 13747.2 | 38.46 H | A ← X R | 13741.7 | ||||||||
| ↳Loomis and Kusch, 1934; Kusch, 1936 | ||||||||||||
| X 1Σ+ | 0 | 49.41 H | ||||||||||
References
Go To: Top, Gas phase ion energetics data, 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.
Eaton, Sarkas, et al., 1992
Eaton, J.G.; Sarkas, H.W.; Arnold, S.T.; Mchugh, K.M.; Bowen, K.H.,
Negative Ion Photoelectron Spectroscopy of the Heteronuclear Alkali-Metal Dimer and Trimer Anions - NaK-, KRb-, RbCS-, KCs-, Na2K-, and K2Cs,
Chem. Phys. Lett., 1992, 193, 1-3, 141, https://doi.org/10.1016/0009-2614(92)85697-9
. [all data]
Kappes and Schumacher, 1985
Kappes, M.M.; Schumacher, E.,
Generation, spectroscopic and chemical characterization of metal clusters (Mx, x < 65), a progress report,
Surf. Sci., 1985, 156, 1. [all data]
Kappes, Radi, et al., 1985
Kappes, M.M.; Radi, P.; Schar, M.; Schumacher, E.,
Photoionization measurements on dialkali monohalides generated in supersonic nozzle beams,
Chem. Phys. Lett., 1985, 113, 243. [all data]
Granneman, Klewer, et al., 1976
Granneman, E.H.A.; Klewer, M.; Nygaard, K.J.; van der Wiel, M.J.,
Two-photon ionization of Cs2, Rb2 and RbCs using an Ar-ion laser,
J. Phys. B:, 1976, 9, 865. [all data]
Loomis and Kusch, 1934
Loomis, F.W.; Kusch, P.,
The band spectrum of caesium,
Phys. Rev., 1934, 46, 292. [all data]
Kusch, 1936
Kusch, P.,
The band spectra of rubidium and of its combinations with other alkali metals,
Phys. Rev., 1936, 49, 218. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, References
- Symbols used in this document:
EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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