2,4-dimethylenecyclobutan-1-ide anion
- Formula: C6H7-
- Molecular weight: 79.1203
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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
C6H7- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1534. ± 13. | kJ/mol | G+TS | Hill and Squires, 1998 | gas phase; acidity between MeCHO, (FCH2)2CHOH. Reprotonate to conjugated form, ΔGacid=361.9, IMRB |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1500. ± 13. | kJ/mol | IMRB | Hill and Squires, 1998 | gas phase; acidity between MeCHO, (FCH2)2CHOH. Reprotonate to conjugated form, ΔGacid=361.9, IMRB |
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 |
|---|---|---|---|
| 1.1405 ± 0.0087 | CIDC | Hill and Squires, 1998 |
Protonation reactions
C6H7- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1534. ± 13. | kJ/mol | G+TS | Hill and Squires, 1998 | gas phase; acidity between MeCHO, (FCH2)2CHOH. Reprotonate to conjugated form, ΔGacid=361.9, IMRB |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1500. ± 13. | kJ/mol | IMRB | Hill and Squires, 1998 | gas phase; acidity between MeCHO, (FCH2)2CHOH. Reprotonate to conjugated form, ΔGacid=361.9, IMRB |
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.
Hill and Squires, 1998
Hill, B.T.; Squires, R.R.,
Synthesis and Characterization of the Negative Ion of non-Kekule` Benzene,
J. Chem. Soc. Perkin Trans., 1998, 2, 5, 1027, https://doi.org/10.1039/a707470k
. [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 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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