Methyl vinyl ketone
- Formula: C4H6O
- Molecular weight: 70.0898
- IUPAC Standard InChIKey: FUSUHKVFWTUUBE-UHFFFAOYSA-N
- CAS Registry Number: 78-94-4
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 3-Buten-2-one; Vinyl methyl ketone; 1-Buten-3-one; 2-Butenone; 3-Butene-2-one; CH2=CHCOCH3; Acetone, methylene-; Butenone; Ketone, methyl vinyl; Methyl ethenyl ketone; Methyl-vinyl-cetone; Methylvinylketon; Acetyl ethylene; Methylene acetone; γ-Oxo-α-butylene; UN 1251; 3-Oxobutene; 3-Butenen-2-one; But-3-en-2-one; 3-Oxo-1-butene; NSC 4853
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Phase change data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 354.6 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 354. | K | N/A | Murata, Arai, et al., 1957 | Uncertainty assigned by TRC = 4. K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
309.8 | 0.193 | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
32.9 | 294. | A | Stephenson and Malanowski, 1987 | Based on data from 279. to 355. K.; AC |
33.6 | 315. | A | Stephenson and Malanowski, 1987 | Based on data from 300. to 355. K.; AC |
Gas phase ion energetics data
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C4H6O+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.65 ± 0.02 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 834.7 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 802.8 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.66 | PE | Morizur, Mercier, et al., 1982 | LBLHLM |
9.64 | EI | Terlouw, Heerma, et al., 1980 | LLK |
9.66 | PE | Masclet and Mouvier, 1978 | LLK |
10.11 | PE | Kobayashi, 1978 | Vertical value; LLK |
9.61 | PE | Tam, Yee, et al., 1974 | Vertical value; LLK |
9.67 | PE | Hentrich, Gunkel, et al., 1974 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C2H3O+ | 12.40 | C2H3 | EI | Majer, Patrick, et al., 1961 | RDSH |
C3H3O+ | 10.44 ± 0.05 | CH3 | EI | Holmes, Terlouw, et al., 1980 | LLK |
C3H3O+ | 10.85 | CH3 | EI | Majer, Patrick, et al., 1961 | RDSH |
De-protonation reactions
C4H5O- + =
By formula: C4H5O- + H+ = C4H6O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1520. ± 8.8 | kJ/mol | G+TS | Bartmess and Kiplinger, 1986 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1492. ± 8.4 | kJ/mol | IMRE | Bartmess and Kiplinger, 1986 | gas phase; value altered from reference due to change in acidity scale; B |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, Gas phase ion energetics 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-IW-3441 |
NIST MS number | 230322 |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Murata, Arai, et al., 1957
Murata, N.; Arai, H.; Tanaka, M.,
Synthesis of Methyl Vinyl Ketone,
Kogyo Kagaku Zasshi, 1957, 60, 1206-7. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [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]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Morizur, Mercier, et al., 1982
Morizur, J.-P.; Mercier, J.; Sarraf, M.,
2-Substituted-2,3-dihydro-4H-pyrans: Competition between 'Retro Diels-Alder' fragmentation and substituent loss,
Org. Mass Spectrom., 1982, 17, 327. [all data]
Terlouw, Heerma, et al., 1980
Terlouw, J.K.; Heerma, W.; Holmes, J.L.; Burgers, P.C.,
Structure and formation of gaseous [C4H6O]+ ions. 1-The enolic ions [CH2=C(OH)-CH=CH2]+ and [CH2=CH-CH=CH(OH)]+ and their relationship with their keto counterparts,
Org. Mass Spectrom., 1980, 15, 582. [all data]
Masclet and Mouvier, 1978
Masclet, P.; Mouvier, G.,
Etude par spectrometrie photoelectronique d'aldehydes et de cetones ethyleniques conjugues,
J. Electron Spectrosc. Relat. Phenom., 1978, 14, 77. [all data]
Kobayashi, 1978
Kobayashi, T.,
A new rule for photoelectron angular distributions of molecules,
Phys. Lett. A, 1978, 69, 31. [all data]
Tam, Yee, et al., 1974
Tam, W.-C.; Yee, D.; Brion, C.E.,
Photoelectron spectra of some aldehydes and ketones,
J. Electron Spectrosc. Relat. Phenom., 1974, 4, 77. [all data]
Hentrich, Gunkel, et al., 1974
Hentrich, G.; Gunkel, E.; Klessinger, M.,
Photoelektronenspektren organischer verbindungen. 4. Photoelektronenspektren ungesattigter carbonylverbindungen,
J. Mol. Struct., 1974, 21, 231. [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]
Holmes, Terlouw, et al., 1980
Holmes, J.L.; Terlouw, J.K.; Burgers, P.C.,
[C3H3O]+ ions; Reacting and non-reacting configurations,
Org. Mass Spectrom., 1980, 15, 140. [all data]
Bartmess and Kiplinger, 1986
Bartmess, J.E.; Kiplinger, J.P.,
'Kinetic' vs. thermodynamic acidities of enones in the gas phase,
J. Org. Chem., 1986, 51, 2173. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy Tboil Boiling point ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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