Oxygen cation
- Formula: O+
- Molecular weight: 15.9989
- IUPAC Standard InChI: InChI=1S/H4O/h1H4/q+2
- IUPAC Standard InChIKey: IZZABXNMZJTEGG-UHFFFAOYSA-N
- CAS Registry Number: 14581-93-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Gas phase thermochemistry data
Go To: Top, Reaction thermochemistry data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°gas,1 bar | 37.036 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1982 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Ion clustering 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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
+
= (
•
)
By formula: O+ + O2 = (O+ • O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 42.9 | kcal/mol | PDiss | Hiller and Vestal, 1982 | gas phase |
| ΔrH° | 48. | kcal/mol | PI | Linn, Ono, et al., 1981 | gas phase |
| ΔrH° | 49.9 | kcal/mol | PDiss | Mosely, Ozenne, et al., 1981 | gas phase |
( • 2
) +
= (
• 3
)
By formula: (O+ • 2O2) + O2 = (O+ • 3O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 0.9 | kcal/mol | PI | Linn, Ono, et al., 1981 | gas phase |
( •
) +
= (
• 2
)
By formula: (O+ • O2) + O2 = (O+ • 2O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 6.9 | kcal/mol | PI | Linn, Ono, et al., 1981 | gas phase |
Ion clustering data
Go To: Top, Gas phase thermochemistry data, Reaction 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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
+
= (
•
)
By formula: O+ + O2 = (O+ • O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 42.9 | kcal/mol | PDiss | Hiller and Vestal, 1982 | gas phase |
| ΔrH° | 48. | kcal/mol | PI | Linn, Ono, et al., 1981 | gas phase |
| ΔrH° | 49.9 | kcal/mol | PDiss | Mosely, Ozenne, et al., 1981 | gas phase |
( •
) +
= (
• 2
)
By formula: (O+ • O2) + O2 = (O+ • 2O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 6.9 | kcal/mol | PI | Linn, Ono, et al., 1981 | gas phase |
( • 2
) +
= (
• 3
)
By formula: (O+ • 2O2) + O2 = (O+ • 3O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 0.9 | kcal/mol | PI | Linn, Ono, et al., 1981 | gas phase |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Hiller and Vestal, 1982
Hiller, J.F.; Vestal, M.L.,
Laser Photodissociation of O3+ and the Energetics of Ozone and its Ions,
J. Chem. Phys., 1982, 77, 3, 1248, https://doi.org/10.1063/1.444000
. [all data]
Linn, Ono, et al., 1981
Linn, S.H.; Ono, Y.; Ng, C.Y.,
A Study of the Ion - Molecule Half Reactions O2+(a4piu, v)...(O2)m ---> O2m+1 + O, m=1, 2, 3, Using the Molecular Beam Photoionization Method,
J. Chem. Phys., 1981, 74, 6, 3348, https://doi.org/10.1063/1.441487
. [all data]
Mosely, Ozenne, et al., 1981
Mosely, J.T.; Ozenne, J.B.; Cosby, P.C.,
Photofragment Spectroscopy of O3+,
J. Chem. Phys., 1981, 74, 1, 337, https://doi.org/10.1063/1.440839
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Ion clustering data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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