Xenon dimer ion
- Formula: Xe2+
- Molecular weight: 262.585
- CAS Registry Number: 12185-20-5
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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 by: Sharon G. Lias and Joel F. Liebman
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| Xe+ | ≤1.05 | Xe | DER | Giles, Adams, et al., 1989 |
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 November, 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 emission bands 61690 - 63130 cm-1 in a condensed discharge through Xe, tentatively assigned to Xe2+. | ||||||||||||
| ↳missing citation | ||||||||||||
| For the following states preliminary data from photoelectron spectrum Dehmer and Dehmer, 1977. For an evaluation of difference potentials from g-u oscillations in the differential elastic scattering cross section see Mittman and Weise, 1974 Jones, Conklin, et al., 1974. Absolute photodissociation cross sections 14400 - 17700 cm-1 Miller, Ling, et al., 1976. | ||||||||||||
| D (2Σg+) 1/2g | (17500) | |||||||||||
| C (2Πu) 1/2u | (16700) | |||||||||||
| C (2Πu) 3/2u | (8600) 1 | |||||||||||
| B (2Πg) 1/2g | (7000) | B ← X | ||||||||||
| ↳Miller, Ling, et al., 1976 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
| B (2Πg) 3/2g | (5300) | B ← X | ||||||||||
| ↳Miller, Ling, et al., 1976 | ||||||||||||
| X 2Σu+ | 0 | (3.25) 2 | ||||||||||
Notes
| 1 | Repulsive |
| 2 | Estimated value Mulliken, 1974. |
| 3 | D00(Xe2) + I.P.(Xe)-I.P.(Xe2). Values of 0.97 and 0.99 eV for De0 have been derived by Lorentz, Olson, et al., 1973 and Mittman and Weise, 1974 from elastic scattering of Xe+ by Xe using ground state re values which differ slightly from the one given in the Table. |
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.
Giles, Adams, et al., 1989
Giles, K.; Adams, N.G.; Smith, D.,
Reactions of Kr+, Kr2, Xe+ and Xe2 ions with several molecular gases at 300 K,
J. Phys. B:, 1989, 22, 873. [all data]
Dehmer and Dehmer, 1977
Dehmer, P.M.; Dehmer, J.L.,
Photoelectron spectrum of the Xe2 van der Waals molecule,
J. Chem. Phys., 1977, 67, 1774. [all data]
Mittman and Weise, 1974
Mittman, H.U.; Weise, H.P.,
Scattering of Ions V. Elastic Scattering of the Symmetric Rare Gas Ion - Rare Gas Atom Systems,
Z. Naturforsch., 1974, A29, 400. [all data]
Jones, Conklin, et al., 1974
Jones, P.R.; Conklin, G.M.; Lorents, D.C.; Olson, R.E.,
Differential elastic-scattering measurements of Xe+ on Xe and Ar+ on Ar in the 20-340-eV range,
Phys. Rev. A: Gen. Phys., 1974, 10, 102. [all data]
Miller, Ling, et al., 1976
Miller, T.M.; Ling, J.H.; Saxon, R.P.; Moseley, J.T.,
Absolute total cross sections for the photodissociation of AR2+, Kr2+, Xe2+, KrN2+, and KrN+ from 565 to 695 nm,
Phys. Rev. A: Gen. Phys., 1976, 13, 2171-2177. [all data]
Mulliken, 1974
Mulliken, R.S.,
Potential energy curves and radiative transition probabilities for rare-gas molecules,
Radiat. Res., 1974, 59, 357. [all data]
Lorentz, Olson, et al., 1973
Lorentz, D.C.; Olson, R.E.; Conklin, G.M.,
Rainbow Scattering for Ar+ + Ar and Xe+ + Xe,
Chem. Phys. Lett., 1973, 20, 6, 589, https://doi.org/10.1016/0009-2614(73)80508-1
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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