C5H6O2
- Formula: C5H6O2
- Molecular weight: 98.0999
- CAS Registry Number: 65248-39-7
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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
C5H5O2- + = C5H6O2
By formula: C5H5O2- + H+ = C5H6O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 392.3 ± 4.2 | kcal/mol | G+TS | Sachs and Kass, 1994 | gas phase; Between water and fluorobenzene. Site of protonation uncertain. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 384.3 ± 4.0 | kcal/mol | IMRB | Sachs and Kass, 1994 | gas phase; Between water and fluorobenzene. Site of protonation uncertain. |
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
De-protonation reactions
C5H5O2- + = C5H6O2
By formula: C5H5O2- + H+ = C5H6O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 392.3 ± 4.2 | kcal/mol | G+TS | Sachs and Kass, 1994 | gas phase; Between water and fluorobenzene. Site of protonation uncertain. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 384.3 ± 4.0 | kcal/mol | IMRB | Sachs and Kass, 1994 | gas phase; Between water and fluorobenzene. Site of protonation uncertain. |
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.
Sachs and Kass, 1994
Sachs, R.K.; Kass, S.R.,
3-Carbomethoxycyclopropen-3-yl Anion - Formation and Characterization of an Antiaromatic Ion,
J. Am. Chem. Soc., 1994, 116, 2, 783, https://doi.org/10.1021/ja00081a055
. [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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