O2CCðCCO2 dianion
- Formula: C4O4-2
- Molecular weight: 112.0415
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Gas phase ion energetics 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
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° | 419.7 ± 3.0 | kcal/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
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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
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- 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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