acetyl fluoride
- Formula: C2H3FO
- Molecular weight: 62.0430
- IUPAC Standard InChIKey: JUCMRTZQCZRJDC-UHFFFAOYSA-N
- CAS Registry Number: 557-99-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Gas phase 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -445. ± 2. | kJ/mol | Cm | Pritchard and Skinner, 1950 | Heat of formation derived by Cox and Pilcher, 1970, see Carson and Skinner, 1949 and Pritchard and Skinner, 1950, 2 |
ΔfH°gas | -437.6 | kJ/mol | Cm | Carson and Skinner, 1949 |
Condensed phase 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -466.39 ± 0.08 | kJ/mol | Cm | Pritchard and Skinner, 1950, 2 | Corrected for CODATA value of ΔfH; HF(100) |
ΔfH°liquid | -470.3 ± 0.4 | kJ/mol | Cm | Pritchard and Skinner, 1950 | Heat of formation derived by Cox and Pilcher, 1970, see Carson and Skinner, 1949 and Pritchard and Skinner, 1950, 2 |
ΔfH°liquid | -463. ± 3. | kJ/mol | Cm | Carson and Skinner, 1949 |
Phase change 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 293. | K | N/A | PCR Inc., 1990 | BS |
Tboil | 294.0 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 293. to 294. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tboil | 295. | K | N/A | Yamase, 1961 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 25. ± 2. | kJ/mol | E | Pritchard and Skinner, 1950 | Heat of formation derived by Cox and Pilcher, 1970, see Carson and Skinner, 1949 and Pritchard and Skinner, 1950, 2; ALS |
ΔvapH° | 30. | kJ/mol | E | Carson and Skinner, 1949 | ALS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
14.3 | 266. | A | Stephenson and Malanowski, 1987 | Based on data from 195. to 281. K.; AC |
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 as indicated in comments:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
C2H2FO- + =
By formula: C2H2FO- + H+ = C2H3FO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1489. ± 16. | kJ/mol | G+TS | Farid and McMahon, 1980 | gas phase; Between MeCOCH2F, cyclopentadiene; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1460. ± 15. | kJ/mol | IMRB | Farid and McMahon, 1980 | gas phase; Between MeCOCH2F, cyclopentadiene; value altered from reference due to change in acidity scale; B |
By formula: 2HNaO + C2H3FO = C2H3NaO2 + FNa + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -56.15 ± 0.08 | kJ/mol | Cm | Pritchard and Skinner, 1950, 2 | liquid phase; Corrected for CODATA value of ΔfH; HF(100); ALS |
ΔrH° | -177. | kJ/mol | Cm | Carson and Skinner, 1949 | liquid phase; ALS |
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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
11.51 ± 0.02 | PE | Chadwick and Katrib, 1974 | LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C2H3O+ | 12.3 | F | EI | Majer, Patrick, et al., 1961 | RDSH |
De-protonation reactions
C2H2FO- + =
By formula: C2H2FO- + H+ = C2H3FO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1489. ± 16. | kJ/mol | G+TS | Farid and McMahon, 1980 | gas phase; Between MeCOCH2F, cyclopentadiene; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1460. ± 15. | kJ/mol | IMRB | Farid and McMahon, 1980 | gas phase; Between MeCOCH2F, cyclopentadiene; value altered from reference due to change in acidity scale; B |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, 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.
Pritchard and Skinner, 1950
Pritchard, H.O.; Skinner, H.A.,
The heats of hydrolysis of the chloro-substituted acetyl chlorides,
J. Chem. Soc., 1950, 272-276. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Carson and Skinner, 1949
Carson, A.S.; Skinner, H.A.,
201. Carbon-halogen bond energies in the acetyl halides,
J. Chem. Soc., 1949, 936-939. [all data]
Pritchard and Skinner, 1950, 2
Pritchard, H.O.; Skinner, H.A.,
The heat of hydrolysis of acetyl fluoride,
J. Chem. Soc., 1950, 1099. [all data]
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
Yamase, 1961
Yamase, Y.,
Friedel-Crafts Acylation II. Relative Reactivity for Some Acyl Halides,
Bull. Chem. Soc. Jpn., 1961, 34, 480-84. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Farid and McMahon, 1980
Farid, R.; McMahon, T.B.,
The gas phase acidities of fluorinated acetones. An ICR investigation of the role of fluorine substituents in the stabilization of planar carbanions,
Can. J. Chem., 1980, 58, 2307. [all data]
Chadwick and Katrib, 1974
Chadwick, D.; Katrib, A.,
Photoelectron spectra of acetaldehyde and acetyl halides,
J. Electron Spectrosc. Relat. Phenom., 1974, 3, 39. [all data]
Majer, Patrick, et al., 1961
Majer, J.R.; Patrick, C.R.; Robb, J.C.,
Appearance potentials of the acetyl radical-ion,
J. Chem. Soc. Faraday Trans., 1961, 57, 14. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Tboil Boiling point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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