3-Penten-2-one
- Formula: C5H8O
- Molecular weight: 84.1164
- IUPAC Standard InChI: InChI=1S/C5H8O/c1-3-4-5(2)6/h3-4H,1-2H3
- IUPAC Standard InChIKey: LABTWGUMFABVFG-UHFFFAOYSA-N
- CAS Registry Number: 625-33-2
- Chemical structure:
This structure is also available as a 2d Mol file - Stereoisomers:
- Other names: Ethylidene acetone; Methyl propenyl ketone; Methyl 1-propenyl ketone; 2-Oxo-3-pentene; (E)-CH3CH=CHC(=O)CH3; 3-Pentene-2-one; Pent-3-en-2-one
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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 | -32.6 | kcal/mol | Cm | Trifel, Smirnov, et al., 1992 |
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 |
|---|---|---|---|---|---|
| ΔcH°liquid | -726.9 | kcal/mol | Ccb | Clopatt, 1932 | Corresponding ΔfHºliquid = -16.6 kcal/mol (simple calculation by NIST; no Washburn corrections) |
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 by: Robert L. Brown and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 395.7 | K | N/A | Aldrich Chemical Company Inc., 1990 |
Mass spectrum (electron ionization)
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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: 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 | SHELL RESEARCH LIMITED THORNTON RESEARCH CENTRE |
| NIST MS number | 19351 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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.
Trifel, Smirnov, et al., 1992
Trifel, B.Yu.; Smirnov, V.V.; Gloriozov, I.P.; Kurbanov, N.I.; Mamedov, F.V.,
Mechanism of reaction between trichloroacetic acid and unsaturated ketones,
Vestn. Mosk. Univ. Ser. 2: Khim., 1992, 33, 547-550. [all data]
Clopatt, 1932
Clopatt, J.A.,
Eine neue Methode zur Bestimmung der Verbrennungswarme fluchtiger Stoffe,
Soc. Scient. Fenn. Commentat. Phys. Math., 1932, 6, 1-15. [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]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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