Krypton, compound with xenon (1:1)
- Formula: KrXe
- Molecular weight: 215.091
- IUPAC Standard InChI: InChI=1S/Kr.Xe
- IUPAC Standard InChIKey: PDEXVOWZLSWEJB-UHFFFAOYSA-N
- CAS Registry Number: 12521-42-5
- 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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 11.763 ± 0.011 | PI | Dehmer and Pratt, 1982 | LBLHLM |
| 12.2 ± 0.2 | EI | Helm, Stephan, et al., 1979 | LLK |
| 11.757 ± 0.017 | PI | Ng, Tiedemann, et al., 1977 | LLK |
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 April, 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Emission continuum with maximum at 1540 Å (64900 cm-1), presumably corresponding to transitions from the lowest excited state(s) to the repulsive part of the ground state potential. | ||||||||||||
| ↳Verkhovtseva, Ovechkin, et al., 1975 | ||||||||||||
| X 1Σ+ | [20.3] 1 | 4.18 2 | ||||||||||
Notes
| 1 | Theoretical values Bobetic and Barker, 1976, calculated from the potential of Lee, Henderson, et al., 1975. |
| 2 | From the "excess properties" of Kr-Xe mixtures Lee, Henderson, et al., 1975. |
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.
Dehmer and Pratt, 1982
Dehmer, P.M.; Pratt, S.T.,
Photoionization of ArKr, ArXe, and KrXe and bond dissociation energies of the rare gas dimer ions,
J. Chem. Phys., 1982, 77, 4804. [all data]
Helm, Stephan, et al., 1979
Helm, H.; Stephan, K.; Mark, T.D.,
Electron-impact ionization of Ar2, ArKr, Kr2, KrXe, and Xe2,
Phys. Rev. A:, 1979, 19, 2154. [all data]
Ng, Tiedemann, et al., 1977
Ng, C.Y.; Tiedemann, P.W.; Mahan, B.H.; Lee, Y.T.,
Photoionization studies of the diatomic heteronuclear rare gas molecules XeKr, XeAr, and KrAr,
J. Chem. Phys., 1977, 66, 5737. [all data]
Verkhovtseva, Ovechkin, et al., 1975
Verkhovtseva, E.T.; Ovechkin, A.E.; Fogel, Ya.M.,
The vacuum-UV spectra of supersonic jets of Ar-Kr-Xe mixtures excited by an electron beam,
Chem. Phys. Lett., 1975, 30, 120. [all data]
Bobetic and Barker, 1976
Bobetic, M.V.; Barker, J.A.,
Vibrational levels of heteronuclear rare gas van der Waals molecules,
J. Chem. Phys., 1976, 64, 2367-2369. [all data]
Lee, Henderson, et al., 1975
Lee, J.K.; Henderson, D.; Barker, J.A.,
Intermolecular interactions and excess thermodynamic properties of argon-krypton and krypton-xenon mixtures,
Mol. Phys., 1975, 29, 429. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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