O2..O2 radical anion
- Formula: O4-
- Molecular weight: 63.9981
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Gas phase thermochemistry data
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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: John E. Bartmess
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -87.2 ± 2.2 | kJ/mol | Ther | Hiraoka, 1888 | see also Sherwood, Hanold, et al., 1996. Aquino, Taylor, et al., 2001 calns indicate rectangular anion |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry 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: John E. Bartmess
Electron affinity of neutral species
| EAneutral (eV) | Method | Reference | Comment |
|---|---|---|---|
| <1.90 ± 0.20 | PD | Burt, 1972 |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hiraoka, 1888
Hiraoka, K.,
A Determination of the Stability of O2+(O2)n and O2-(O2)n with n=1-8 from Measurements of the Gas Phase Ion Equilibria,
J. Chem. Phys., 1888, 89, 5, 3190, https://doi.org/10.1063/1.454976
. [all data]
Sherwood, Hanold, et al., 1996
Sherwood, C.R.; Hanold, K.A.; Garner, M.C.; Strong, K.M.; Continetti, R.E.,
Translational Spectroscopy Studies of the Photodissociation Dynamics of O4-,
J. Chem. Phys., 1996, 105, 24, 10803, https://doi.org/10.1063/1.472888
. [all data]
Aquino, Taylor, et al., 2001
Aquino, A.J.A.; Taylor, P.R.; Walch, S.P.,
Structure, properties, and photodissociation of O-4(-),
J. Chem. Phys., 2001, 114, 7, 3010-3017, https://doi.org/10.1063/1.1288379
. [all data]
Burt, 1972
Burt, J.A.,
Measurement of the photodetachment cross section for O4- at high pressure,
J. Geophys. Res., 1972, 77, 6280. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
EAneutral Electron affinity of neutral species ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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