(MeO2C)2CH anion
- Formula: C5H7O4-
- Molecular weight: 131.1072
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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
C5H7O4- + =
By formula: C5H7O4- + H+ = C5H8O4
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 348.0 ± 2.1 | kcal/mol | G+TS | Mishima, Matsuoka, et al., 2004 | gas phase; Calc: keto form of acid more stable. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 341.3 ± 2.0 | kcal/mol | IMRE | Mishima, Matsuoka, et al., 2004 | gas phase; Calc: keto form of acid more stable. |
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
Protonation reactions
C5H7O4- + =
By formula: C5H7O4- + H+ = C5H8O4
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 348.0 ± 2.1 | kcal/mol | G+TS | Mishima, Matsuoka, et al., 2004 | gas phase; Calc: keto form of acid more stable. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 341.3 ± 2.0 | kcal/mol | IMRE | Mishima, Matsuoka, et al., 2004 | gas phase; Calc: keto form of acid more stable. |
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.
Mishima, Matsuoka, et al., 2004
Mishima, M.; Matsuoka, M.; Lei, Y.X.; Rappoport, Z.,
Gas-phase acidities of disubstituted methanes and of enols of carboxamides substituted by electron-withdrawing groups,
J. Org. Chem., 2004, 69, 18, 5947-5965, https://doi.org/10.1021/jo040196b
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
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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