Me2PCH2 anion
- Formula: C3H8P-
- Molecular weight: 75.0699
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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
C3H8P- + =
By formula: C3H8P- + H+ = C3H9P
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 391.1 ± 2.1 | kcal/mol | G+TS | Ingemann and Nibbering, 1985 | gas phase |
| ΔrH° | 385.3 ± 4.1 | kcal/mol | G+TS | Romer, Gatev, et al., 1998 | gas phase; The conflict with Ingemann and Nibbering, 1985, 22 is not resolved |
| ΔrH° | 384.2 ± 3.2 | kcal/mol | G+TS | Grabowski, Roy, et al., 1988 | gas phase; Between O-. and MeO-, nearer the latter. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 383.8 ± 2.0 | kcal/mol | IMRE | Ingemann and Nibbering, 1985 | gas phase |
| ΔrG° | 378.0 ± 4.0 | kcal/mol | IMRB | Romer, Gatev, et al., 1998 | gas phase; The conflict with Ingemann and Nibbering, 1985, 22 is not resolved |
| ΔrG° | 376.9 ± 3.1 | kcal/mol | IMRB | Grabowski, Roy, et al., 1988 | gas phase; Between O-. and MeO-, nearer the latter. |
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
C3H8P- + =
By formula: C3H8P- + H+ = C3H9P
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 391.1 ± 2.1 | kcal/mol | G+TS | Ingemann and Nibbering, 1985 | gas phase |
| ΔrH° | 385.3 ± 4.1 | kcal/mol | G+TS | Romer, Gatev, et al., 1998 | gas phase; The conflict with Ingemann and Nibbering, 1985, 22 is not resolved |
| ΔrH° | 384.2 ± 3.2 | kcal/mol | G+TS | Grabowski, Roy, et al., 1988 | gas phase; Between O-. and MeO-, nearer the latter. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 383.8 ± 2.0 | kcal/mol | IMRE | Ingemann and Nibbering, 1985 | gas phase |
| ΔrG° | 378.0 ± 4.0 | kcal/mol | IMRB | Romer, Gatev, et al., 1998 | gas phase; The conflict with Ingemann and Nibbering, 1985, 22 is not resolved |
| ΔrG° | 376.9 ± 3.1 | kcal/mol | IMRB | Grabowski, Roy, et al., 1988 | gas phase; Between O-. and MeO-, nearer the latter. |
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.
Ingemann and Nibbering, 1985
Ingemann, S.; Nibbering, N.M.M.,
Gas-phase acidity of CH3X [X = P(CH3)2, SCH3, F, Cl, Br, I] compounds,
J. Chem. Soc. Perkin Trans. 2, 1985, 837. [all data]
Romer, Gatev, et al., 1998
Romer, B.; Gatev, G.G.; Zhong, M.; Brauman, J.I.,
Alpha-Stabilization by Silyl and Phosphino Substitution,
J. Am. Chem. Soc., 1998, 120, 12, 2919, https://doi.org/10.1021/ja970279s
. [all data]
Ingemann and Nibbering, 1985, 2
Ingemann, S.; Nibbering, N.M.M.,
Gas phase chemistry of alpha-thio carbanions,
Can. J. Chem., 1985, 62, 2273. [all data]
Grabowski, Roy, et al., 1988
Grabowski, J.J.; Roy, P.D.; Leone, R.,
Trimethylphosphine: Anion-Molecule Reactions and Acidity in the Gas Phase,
J. Chem. Soc. Perkin Trans., 1988, 2, 8, 1627, https://doi.org/10.1039/p29880001627
. [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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