1-naphthyl-CH2 anion
- Formula: C11H9-
- Molecular weight: 141.1897
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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 |
|---|---|---|---|
| 1.07 ± 0.11 | D-EA | Bartmess and Griffiths, 1990 | Isomer 1-methylene-1,4-dihydronaphthalene: ΔG=349.0±2.0, ΔS=27±2, ΔH=357.1 |
Protonation reactions
C11H9- + =
By formula: C11H9- + H+ = C11H10
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1565. ± 8.8 | kJ/mol | G+TS | Bartmess and Griffiths, 1990 | gas phase; Isomer 1-methylene-1,4-dihydronaphthalene: ΔG=349.0±2.0, ΔS=27±2, ΔH=357.1 |
| ΔrH° | 1551. ± 10. | kJ/mol | TDEq | Meot-ner, Liebman, et al., 1988 | gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1531. ± 8.4 | kJ/mol | IMRE | Bartmess and Griffiths, 1990 | gas phase; Isomer 1-methylene-1,4-dihydronaphthalene: ΔG=349.0±2.0, ΔS=27±2, ΔH=357.1 |
| ΔrG° | 1516. ± 8.4 | kJ/mol | TDEq | Meot-ner, Liebman, et al., 1988 | gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho. |
References
Go To: Top, 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.
Bartmess and Griffiths, 1990
Bartmess, J.E.; Griffiths, S.S.,
Tautomerization Energetics of Benzoannelated Toluenes,
J. Am. Chem. Soc., 1990, 112, 8, 2932, https://doi.org/10.1021/ja00164a014
. [all data]
Meot-ner, Liebman, et al., 1988
Meot-ner, M.; Liebman, J.F.; Kafafi, S.A.,
Ionic Probes of Aromaticity in Annelated Rings,
J. Am. Chem. Soc., 1988, 110, 18, 5937, https://doi.org/10.1021/ja00226a001
. [all data]
Kiefer, Zhang, et al., 1997
Kiefer, J.H.; Zhang, Q.; Kern, R.D.; Yao, J.; Jursic, B.,
Pyrolysis of Aromatic Azines: Pyrazine, Pyrimidine, and Pyridine,
J. Phys. Chem. A, 1997, 101, 38, 7061, https://doi.org/10.1021/jp970211z
. [all data]
Notes
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- 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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