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 | -20.83 ± 0.52 | kcal/mol | Ther | Hiraoka, 1888 | see also Sherwood, Hanold, et al., 1996. Aquino, Taylor, et al., 2001 calns indicate rectangular anion |
Reaction 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
O4- + + = N2O4-
By formula: O4- + N2 + O2 = N2O4-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 2.90 ± 0.20 | kcal/mol | TDAs | Hiraoka, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | -2.10 ± 0.50 | kcal/mol | TDAs | Hiraoka, 1988 | gas phase |
Gas phase ion energetics 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
Electron affinity of neutral species
EAneutral (eV) | Method | Reference | Comment |
---|---|---|---|
<1.90 ± 0.20 | PD | Burt, 1972 |
Ion clustering 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
O4- + + = N2O4-
By formula: O4- + N2 + O2 = N2O4-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 2.90 ± 0.20 | kcal/mol | TDAs | Hiraoka, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | -2.10 ± 0.50 | kcal/mol | TDAs | Hiraoka, 1988 | gas phase |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering 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]
Hiraoka, 1988
Hiraoka, K.,
Determination of the Stabilities of O3-(N2)n, O3-(O2)n, and O4-(N2)n from Measurements of the Gas Phase Equilibria,
Chem. Phys., 1988, 125, 2-3, 439, https://doi.org/10.1016/0301-0104(88)87096-4
. [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, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References
- Symbols used in this document:
EAneutral Electron affinity of neutral species ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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