p-Benzoquinone anion
- Formula: C6H4O2-
- Molecular weight: 108.0953
- IUPAC Standard InChI: InChI=1S/C6H3O2/c7-5-1-2-6(8)4-3-5/h1-3H/q-1
- IUPAC Standard InChIKey: DJKSPSYYMJJMFY-UHFFFAOYSA-N
- CAS Registry Number: 3225-29-4
- Chemical structure:
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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 as indicated in comments:
B - John E. Bartmess
M - 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: C6H4O2- + CH4O = (C6H4O2- • CH4O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrG° | 23. ± 6.7 | kJ/mol | IMRE | Chowdhury, Grimsrud, et al., 1987 | gas phase; Free energy affinity at 70°C.; B |
Free energy of reaction
| ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 23. | 343. | PHPMS | Chowdhury, 1987 | gas phase; M |
+
= (
•
)
By formula: C6H4O2- + C2H3N = (C6H4O2- • C2H3N)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrG° | 20. ± 6.7 | kJ/mol | IMRE | Chowdhury, Grimsrud, et al., 1987 | gas phase; Free energy affinity at 70°C.; B |
Free energy of reaction
| ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 20. | 343. | PHPMS | Chowdhury, 1987 | gas phase; M |
+
= (
•
)
By formula: C6H4O2- + C2H6OS = (C6H4O2- • C2H6OS)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrG° | 26. ± 6.7 | kJ/mol | IMRE | Chowdhury, Grimsrud, et al., 1987 | gas phase; Free energy affinity at 70°C.; B |
Free energy of reaction
| ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 26. | 343. | PHPMS | Chowdhury, 1987 | gas phase; M |
+
= (
•
)
By formula: C6H4O2- + C3H7NO = (C6H4O2- • C3H7NO)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrG° | 18. ± 6.7 | kJ/mol | IMRE | Chowdhury, Grimsrud, et al., 1987 | gas phase; Free energy affinity at 70°C.; B |
Free energy of reaction
| ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 18. | 343. | PHPMS | Chowdhury, 1987 | gas phase; M |
+
= C6H4F4O2Si-
By formula: C6H4O2- + F4Si = C6H4F4O2Si-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 100. ± 8.4 | kJ/mol | TDAs | Williamson, Knighton, et al., 2001 | gas phase; at 150 C; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 55.2 ± 2.5 | kJ/mol | TDAs | Williamson, Knighton, et al., 2001 | gas phase; at 150 C; B |
References
Go To: Top, Ion clustering data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chowdhury, Grimsrud, et al., 1987
Chowdhury, S.; Grimsrud, E.P.; Kebarle, P.,
Bonding of Charged Delocalized Anions to Protic and Dipolar Aprotic Solvent Molecules,
J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021
. [all data]
Chowdhury, 1987
Chowdhury, S. Grimsrud,
Bonding of Charge Delocalized Anions to Protic and Dipolar Aprotic Solvents,
J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021
. [all data]
Williamson, Knighton, et al., 2001
Williamson, D.H.; Knighton, W.B.; Grimsrud, E.P.,
Lewis acid-base interactions of SiF4 with molecular anions formed by electron capture reactions,
Int. J. Mass Spectrom., 2001, 206, 1-2, 53-61, https://doi.org/10.1016/S1387-3806(00)00388-2
. [all data]
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 - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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