Oxygen cation
- Formula: O2+
- Molecular weight: 31.9983
- IUPAC Standard InChI: InChI=1S/O2/c1-2/q+1
- IUPAC Standard InChIKey: KMHJKRGRIJONSV-UHFFFAOYSA-N
- CAS Registry Number: 12185-07-8
- Chemical structure:
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Reaction thermochemistry data
Go To: Top, 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: O2+ + CO2 = (O2+ • CO2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 9.8 ± 0.9 | kcal/mol | AVG | N/A | Average of 4 out of 6 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 17.5 | cal/mol*K | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase |
| ΔrS° | 18.9 | cal/mol*K | DT | Illies, 1988 | gas phase; ΔrH(0 K)=9.80 kcal/mol |
| ΔrS° | 20.7 | cal/mol*K | N/A | Dotan, Davidson, et al., 1978 | gas phase; switching reaction(O2+)O2, Entropy change calculated or estimated; Conway and Janik, 1970 |
| ΔrS° | 20. | cal/mol*K | N/A | Meot-Ner (Mautner) and Field, 1977 | gas phase; Entropy change calculated or estimated, DG>, ΔrH> |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 4.4 | kcal/mol | DT | Rakshit and Warneck, 1981 | gas phase |
| ΔrG° | 4.3 | kcal/mol | FA | Dotan, Davidson, et al., 1978 | gas phase; switching reaction(O2+)O2, Entropy change calculated or estimated; Conway and Janik, 1970 |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 9.4 | 600. | PHPMS | Meot-Ner (Mautner) and Field, 1977 | gas phase; Entropy change calculated or estimated, DG>, ΔrH> |
+
= (
•
)
By formula: O2+ + O2 = (O2+ • O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 10. ± 1. | kcal/mol | AVG | N/A | Average of 5 out of 6 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 18.8 | cal/mol*K | PHPMS | Hiraoka, 1988 | gas phase |
| ΔrS° | 25.02 | cal/mol*K | PHPMS | Conway and Janik, 1970 | gas phase |
| ΔrS° | 20. | cal/mol*K | PHPMS | Durden, Kebarle, et al., 1969 | gas phase |
| ΔrS° | 20.6 | cal/mol*K | PHPMS | Yang and Conway, 1964 | gas phase |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 3.8 | 300. | DT | Rakshit and Warneck, 1981 | gas phase |
| 3.3 | 300. | DT | Rakshit and Warneck, 1980 | gas phase |
| 3.4 | 296. | FA | Howard, Bierbaum, et al., 1972 | gas phase |
| 5.9 | 200. | FA | Adams and Bohme, 1970 | gas phase |
+
= (
•
)
By formula: O2+ + N2 = (O2+ • N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 5.0 ± 0.3 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| ΔrH° | 5.2 | kcal/mol | HPMS | Speller and Fitaire, 1983 | gas phase |
| ΔrH° | 5.7 | kcal/mol | PHPMS | Janik and Conway, 1967 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 17.4 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| ΔrS° | 15.8 | cal/mol*K | HPMS | Speller and Fitaire, 1983 | gas phase |
| ΔrS° | 18.9 | cal/mol*K | PHPMS | Janik and Conway, 1967 | gas phase |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 0.0 | 296. | FA | Howard, Bierbaum, et al., 1972 | gas phase |
+
= (
•
)
By formula: O2+ + O3 = (O2+ • O3)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 14.5 | kcal/mol | FA | Dotan, Davidson, et al., 1978 | gas phase; switching reaction(O2+)O2, Entropy change calculated or estimated; Conway and Janik, 1970 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20.5 | cal/mol*K | N/A | Dotan, Davidson, et al., 1978 | gas phase; switching reaction(O2+)O2, Entropy change calculated or estimated; Conway and Janik, 1970 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 8.4 | kcal/mol | FA | Dotan, Davidson, et al., 1978 | gas phase; switching reaction(O2+)O2, Entropy change calculated or estimated; Conway and Janik, 1970 |
+
= (
•
)
By formula: O2+ + N2O = (O2+ • N2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 13.4 | kcal/mol | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
| ΔrH° | 10.7 ± 0.4 | kcal/mol | DT | Illies, 1988 | gas phase; ΔrH(0 K)=10.8 kcal/mol |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 23. | cal/mol*K | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
| ΔrS° | 15.3 | cal/mol*K | DT | Illies, 1988 | gas phase; ΔrH(0 K)=10.8 kcal/mol |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 8.9 | 200. | FA | Adams and Bohme, 1970 | gas phase; switching reaction(O2+)O2 |
( •
) +
= (
• 2
)
By formula: (O2+ • CO2) + CO2 = (O2+ • 2CO2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 8.6 ± 0.5 | kcal/mol | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase |
| ΔrH° | 7.5 | kcal/mol | PHPMS | Meot-Ner (Mautner) and Field, 1977 | gas phase; Entropy change is questionable |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 18.7 | cal/mol*K | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase |
| ΔrS° | 15. | cal/mol*K | PHPMS | Meot-Ner (Mautner) and Field, 1977 | gas phase; Entropy change is questionable |
( • 2
) +
= (
• 3
)
By formula: (O2+ • 2N2) + N2 = (O2+ • 3N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 4.2 ± 0.3 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| ΔrH° | 3.5 | kcal/mol | HPMS | Speller and Fitaire, 1983 | gas phase; Entropy change is questionable |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 19.6 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| ΔrS° | 12.1 | cal/mol*K | HPMS | Speller and Fitaire, 1983 | gas phase; Entropy change is questionable |
( •
) +
= (
• 2
)
By formula: (O2+ • N2) + N2 = (O2+ • 2N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 4.5 ± 0.3 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| ΔrH° | 4.3 | kcal/mol | HPMS | Speller and Fitaire, 1983 | gas phase; Entropy change is questionable |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 19.1 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| ΔrS° | 13.8 | cal/mol*K | HPMS | Speller and Fitaire, 1983 | gas phase; Entropy change is questionable |
( •
) +
= (
• 2
)
By formula: (O2+ • O2) + O2 = (O2+ • 2O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 5.9 ± 0.3 | kcal/mol | PHPMS | Hiraoka, 1988 | gas phase |
| ΔrH° | 6.87 ± 0.06 | kcal/mol | PHPMS | Conway and Janik, 1970 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 26.3 | cal/mol*K | PHPMS | Hiraoka, 1988 | gas phase |
| ΔrS° | 31.78 | cal/mol*K | PHPMS | Conway and Janik, 1970 | gas phase |
( • 3
) +
= (
• 4
)
By formula: (O2+ • 3O2) + O2 = (O2+ • 4O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 2.1 ± 0.2 | kcal/mol | PHPMS | Hiraoka, 1988 | gas phase |
| ΔrH° | 2.46 ± 0.18 | kcal/mol | PHPMS | Conway and Janik, 1970 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 21.2 | cal/mol*K | PHPMS | Hiraoka, 1988 | gas phase |
| ΔrS° | 23.9 | cal/mol*K | PHPMS | Conway and Janik, 1970 | gas phase |
( • 2
) +
= (
• 3
)
By formula: (O2+ • 2O2) + O2 = (O2+ • 3O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 2.5 ± 0.2 | kcal/mol | PHPMS | Hiraoka, 1988 | gas phase |
| ΔrH° | 2.5 ± 0.1 | kcal/mol | PHPMS | Conway and Janik, 1970 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 18.7 | cal/mol*K | PHPMS | Hiraoka, 1988 | gas phase |
| ΔrS° | 19.8 | cal/mol*K | PHPMS | Conway and Janik, 1970 | gas phase |
( • 4
) +
= (
• 5
)
By formula: (O2+ • 4O2) + O2 = (O2+ • 5O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1.9 ± 0.2 | kcal/mol | PHPMS | Hiraoka, 1988 | gas phase |
| ΔrH° | 1.8 ± 0.7 | kcal/mol | PHPMS | Conway and Janik, 1970 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 21.4 | cal/mol*K | PHPMS | Hiraoka, 1988 | gas phase |
| ΔrS° | 17.0 | cal/mol*K | PHPMS | Conway and Janik, 1970 | gas phase |
( • 4
) +
= (
• 5
)
By formula: (O2+ • 4N2) + N2 = (O2+ • 5N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 2.7 ± 0.2 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 16.2 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 0.7 | 184. | HPMS | Speller and Fitaire, 1983 | gas phase |
( • 3
) +
= (
• 4
)
By formula: (O2+ • 3N2) + N2 = (O2+ • 4N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 4.0 ± 0.3 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 22.5 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 0.7 | 204. | HPMS | Speller and Fitaire, 1983 | gas phase |
( • 5
) +
= (
• 6
)
By formula: (O2+ • 5CO2) + CO2 = (O2+ • 6CO2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 4.0 | kcal/mol | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase; Entropy change calculated or estimated |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20. | cal/mol*K | N/A | Hiraoka, Nakajima, et al., 1988 | gas phase; Entropy change calculated or estimated |
( • 7
) +
= (
• 8
)
By formula: (O2+ • 7O2) + O2 = (O2+ • 8O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1.82 | kcal/mol | PHPMS | Hiraoka, 1988 | gas phase; Entropy change calculated or estimated |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 22. | cal/mol*K | N/A | Hiraoka, 1988 | gas phase; Entropy change calculated or estimated |
( •
) +
= (
•
•
)
By formula: (O2+ • O2) + N2 = (O2+ • N2 • O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 2.9 | kcal/mol | HPMS | Speller and Fitaire, 1983 | gas phase; Entropy change is questionable |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 10.1 | cal/mol*K | HPMS | Speller and Fitaire, 1983 | gas phase; Entropy change is questionable |
( • 10
) +
= (
• 11
)
By formula: (O2+ • 10N2) + N2 = (O2+ • 11N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1.4 ± 0.3 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20.2 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
( • 9
) +
= (
• 10
)
By formula: (O2+ • 9N2) + N2 = (O2+ • 10N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1.7 ± 0.2 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20.8 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
( • 5
) +
= (
• 6
)
By formula: (O2+ • 5N2) + N2 = (O2+ • 6N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 2.5 ± 0.2 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 16.1 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
( • 6
) +
= (
• 7
)
By formula: (O2+ • 6N2) + N2 = (O2+ • 7N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 2.3 ± 0.2 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 18.5 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
( • 7
) +
= (
• 8
)
By formula: (O2+ • 7N2) + N2 = (O2+ • 8N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 2.1 ± 0.2 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 19.3 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
( • 8
) +
= (
• 9
)
By formula: (O2+ • 8N2) + N2 = (O2+ • 9N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1.9 ± 0.2 | kcal/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 19.1 | cal/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
( • 2
) +
= (
• 3
)
By formula: (O2+ • 2N2O) + N2O = (O2+ • 3N2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 5.9 | kcal/mol | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 19. | cal/mol*K | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
( • 2
) +
= (
• 3
)
By formula: (O2+ • 2CO2) + CO2 = (O2+ • 3CO2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 6.2 ± 0.3 | kcal/mol | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 19.8 | cal/mol*K | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase |
( • 3
) +
= (
• 4
)
By formula: (O2+ • 3N2O) + N2O = (O2+ • 4N2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 5.2 | kcal/mol | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 22. | cal/mol*K | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
( • 3
) +
= (
• 4
)
By formula: (O2+ • 3CO2) + CO2 = (O2+ • 4CO2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 5.1 ± 0.3 | kcal/mol | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 19.6 | cal/mol*K | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase |
( • 4
) +
= (
• 5
)
By formula: (O2+ • 4N2O) + N2O = (O2+ • 5N2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 4.8 | kcal/mol | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 23. | cal/mol*K | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
( • 4
) +
= (
• 5
)
By formula: (O2+ • 4CO2) + CO2 = (O2+ • 5CO2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 4.5 ± 0.5 | kcal/mol | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20.0 | cal/mol*K | PHPMS | Hiraoka, Nakajima, et al., 1988 | gas phase |
( • 5
) +
= (
• 6
)
By formula: (O2+ • 5N2O) + N2O = (O2+ • 6N2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 4.3 | kcal/mol | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 22. | cal/mol*K | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
( • 6
) +
= (
• 7
)
By formula: (O2+ • 6N2O) + N2O = (O2+ • 7N2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 3.9 | kcal/mol | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20. | cal/mol*K | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
( •
) +
= (
• 2
)
By formula: (O2+ • N2O) + N2O = (O2+ • 2N2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 7.5 | kcal/mol | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20. | cal/mol*K | PHPMS | Hiraoka, Fujimaki, et al., 1994 | gas phase |
( • 5
) +
= (
• 6
)
By formula: (O2+ • 5O2) + O2 = (O2+ • 6O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1.9 ± 0.3 | kcal/mol | PHPMS | Hiraoka, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 21.7 | cal/mol*K | PHPMS | Hiraoka, 1988 | gas phase |
( • 6
) +
= (
• 7
)
By formula: (O2+ • 6O2) + O2 = (O2+ • 7O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1.9 ± 0.4 | kcal/mol | PHPMS | Hiraoka, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 21.9 | cal/mol*K | PHPMS | Hiraoka, 1988 | gas phase |
+
= (
•
)
By formula: O2+ + O2S = (O2+ • O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrG° | 9.6 | kcal/mol | FA | Adams and Bohme, 1970 | gas phase; switching reaction(O2+)O2; Conway and Janik, 1970 |
+
= (
•
)
By formula: O2+ + H2O = (O2+ • H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 16. | kcal/mol | FA | Adams and Bohme, 1970 | gas phase; switching reaction(O2+)SO2, ΔrH> |
( •
•
) +
= (
• 2
•
)
By formula: (O2+ • N2 • O2) + N2 = (O2+ • 2N2 • O2)
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 0.5 | 230. | HPMS | Speller and Fitaire, 1983 | gas phase |
+
= (
•
)
By formula: O2+ + Kr = (O2+ • Kr)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 7.6 | kcal/mol | PDiss | Jarrold, Misev, et al., 1984 | gas phase |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hiraoka, Nakajima, et al., 1988
Hiraoka, K.; Nakajima, G.; Shoda, S.,
Determination of the Stabilities of CO2+(CO2)n and O2+(CO2)n Clusters with n = 1 - 6,
Chem. Phys. Lett., 1988, 146, 6, 535, https://doi.org/10.1016/0009-2614(88)87495-5
. [all data]
Illies, 1988
Illies, A.J.,
Thermochemistry of the Gas - Phase Ion - Molecule Clustering of CO2+CO2, SO2+CO2, N2O+N2O, O2+CO2, NO+CO2 and NO+N2O: Description of a New Hybrid Drift Tube/Ion Source with Coaxial Electron Beam and Ion Exit Apertures,
J. Phys. Chem., 1988, 92, 10, 2889, https://doi.org/10.1021/j100321a037
. [all data]
Dotan, Davidson, et al., 1978
Dotan, I.; Davidson, J.A.; Fehsenfeld, F.C.; Albritton, D.L.,
Reactions of O2+.O2 with CO2, O3 and CH4 and O2+.O3 with H2O and CH4 and their Role in Stratospheric Ion Chemistry,
J. Geophys. Res., 1978, 83, C8, 4036, https://doi.org/10.1029/JC083iC08p04036
. [all data]
Conway and Janik, 1970
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Notes
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- Symbols used in this document:
T Temperature ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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