O2CCðCCO2 dianion
- Formula: C4O4-2
- Molecular weight: 112.0415
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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
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Individual Reactions
C4O4-2 + = C4HO4-2
By formula: C4O4-2 + H+ = C4HO4-2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1756. ± 13. | kJ/mol | D-EA | Skurski, Simons, et al., 2000 | gas phase; Vertical Detachment Energy: 0.60±0.10 eV; coulomb barrier ca. <80 kcal/mol |
Gas phase ion energetics data
Go To: Top, 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: John E. Bartmess
Electron affinity of neutral species
| EAneutral (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.300 ± 0.010 | LPES | Skurski, Simons, et al., 2000 | Vertical Detachment Energy: 0.60±0.10 eV; coulomb barrier ca. <80 kcal/mol |
Protonation reactions
C4O4-2 + = C4HO4-2
By formula: C4O4-2 + H+ = C4HO4-2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1756. ± 13. | kJ/mol | D-EA | Skurski, Simons, et al., 2000 | gas phase; Vertical Detachment Energy: 0.60±0.10 eV; coulomb barrier ca. <80 kcal/mol |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Skurski, Simons, et al., 2000
Skurski, P.; Simons, J.; Wang, X.B.; Wang, L.S.,
Experimental and theoretical investigations of the stability of two small gaseous dicarboxylate dianions: Acetylene dicarboxylate and succinate,
J. Am. Chem. Soc., 2000, 122, 18, 4499-4507, https://doi.org/10.1021/ja000371f
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
EAneutral Electron affinity of neutral species ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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