1-Phosphapropyne
- Formula: C2H3P
- Molecular weight: 58.0190
- CAS Registry Number: 34627-31-1
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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
C2H2P- + = C2H3P
By formula: C2H2P- + H+ = C2H3P
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 356.0 ± 2.6 | kcal/mol | G+TS | Mo, Yanez, et al., 1999 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 348.6 ± 2.3 | kcal/mol | IMRE | Mo, Yanez, et al., 1999 | gas phase |
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 as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
View reactions leading to C2H3P+ (ion structure unspecified)
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.77 | PE | Lacombe, Dong, et al., 1992 | Vertical value; LL |
| 9.89 ± 0.01 | PE | Westwood, Kroto, et al., 1979 | Vertical value; LLK |
De-protonation reactions
C2H2P- + = C2H3P
By formula: C2H2P- + H+ = C2H3P
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 356.0 ± 2.6 | kcal/mol | G+TS | Mo, Yanez, et al., 1999 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 348.6 ± 2.3 | kcal/mol | IMRE | Mo, Yanez, et al., 1999 | gas phase; B |
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.
Mo, Yanez, et al., 1999
Mo, O.; Yanez, M.; Decouzon, M.; Gal, J.F.; Maria, P.C.; Guillemin, J.L.,
Gas-phase basicity and acidity trends in alpha,beta-unsaturated amines, phosphines, and arsines,
J. Am. Chem. Soc., 1999, 121, 19, 4653-4663, https://doi.org/10.1021/ja982657e
. [all data]
Lacombe, Dong, et al., 1992
Lacombe, S.; Dong, W.; Pfister-Guillouzo, G.; Guillemin, J.C.; Denis, J.M.,
Gas-phase study and stability of alkynylphosphines and allenylphosphines: Photoelectronic study,
Inorg. Chem., 1992, 31, 4425. [all data]
Westwood, Kroto, et al., 1979
Westwood, N.P.C.; Kroto, H.W.; Nixon, J.F.; Simmons, N.P.C.,
Formation of 1-phosphapropyne, CH3C≡P, by pyrolysis of dichloro(ethyl)phosphine: a He(I) photoelectron spectroscopic study,
J. Chem. Soc. Dalton Trans., 1979, 9, 1405. [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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