PhCH2CH2 anion
- Formula: C8H9-
- Molecular weight: 105.1576
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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 |
|---|---|---|---|
| 0.35 ± 0.22 | D-EA | Graul and Squires, 1990 | From decarboxylation threshold. Stable form probably the spiro[2.5]octadienide Maas and van Keelen, 1989 |
Protonation reactions
C8H9- + =
By formula: C8H9- + H+ = C8H10
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1699. ± 19. | kJ/mol | CIDT | Graul and Squires, 1990 | gas phase; From decarboxylation threshold. Stable form probably the spiro[2.5]octadienide Maas and van Keelen, 1989 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1664. ± 20. | kJ/mol | H-TS | Graul and Squires, 1990 | gas phase; From decarboxylation threshold. Stable form probably the spiro[2.5]octadienide Maas and van Keelen, 1989 |
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.
Graul and Squires, 1990
Graul, S.T.; Squires, R.R.,
Gas-Phase Acidities Derived from Threshold Energies for Activated Reactions,
J. Am. Chem. Soc., 1990, 112, 7, 2517, https://doi.org/10.1021/ja00163a007
. [all data]
Maas and van Keelen, 1989
Maas, W.P.M.; van Keelen, P.A.,
On the Generation and Characterization of the Spiro[2,5]Octadienyl Anion in the Gas Phase,
Org. Mass Spectrom., 1989, 24, 8, 546, https://doi.org/10.1002/oms.1210240807
. [all data]
Notes
Go To: Top, 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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