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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Gas phase thermochemistry data
Go To: Top, 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 | 49.288 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1977 |
Ion clustering 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: 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: 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> |
( •
) +
= (
• 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+ • 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+ • 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+ • 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+ • 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 |
+
= (
•
)
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> |
+
= (
•
)
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 |
+
= (
•
)
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+ • 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 |
( • 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 |
( • 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 |
( • 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 |
( • 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 |
+
= (
•
)
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 |
( •
) +
= (
• 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
) +
= (
• 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 |
( • 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 |
( • 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 |
( • 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 |
( • 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 |
( • 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 |
( •
•
) +
= (
• 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+ + 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+ + 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+ • 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 |
( •
) +
= (
• 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 |
( • 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 |
( • 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 |
( • 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 |
( • 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 |
( • 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+ + 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 |
References
Go To: Top, Gas phase 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]
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,
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Notes
Go To: Top, Gas phase thermochemistry data, Ion clustering data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) 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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