5-Hepten-2-one, 6-methyl-
- Formula: C8H14O
- Molecular weight: 126.1962
- IUPAC Standard InChIKey: UHEPJGULSIKKTP-UHFFFAOYSA-N
- CAS Registry Number: 110-93-0
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: 6-Methyl-5-heptene-2-one; 6-Methyl-5-hepten-2-one; 2-Methyl-2-hepten-6-one; 6-Methyl hept-5-en-2-one; Sulcatone; NSC 15294; Prenylacetone; 129085-68-3; Methyl heptenone; 2-methyl-6-heptenone; methyl-5-hepten-2-one; 2-methylhept-2-en-6-one; 6-Methyl hept-5-ene-2-one; (E)-6-methylhept-5-en-2-one; 6-methyI-5-hepten-2-one
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, 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 compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -251. | kJ/mol | Semi | Stewart, 2004 | |
ΔfH°gas | -303.7 ± 1.6 | kJ/mol | Ccb | Gerasimov and Gubareva, 1985 | ALS |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, 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 compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔcH°liquid | -4837.8 ± 1.6 | kJ/mol | Ccb | Gerasimov and Gubareva, 1985 | Corresponding ΔfHºliquid = -311.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
268.8 | 298.35 | Baglay, Gurariy, et al., 1988 | T = 270 to 340 K. Unsmoothed experimental datum.; DH |
267.9 | 298.35 | Baglai, Baev, et al., 1984 | T = 273 to 343 K. Cp(liq) = 0.24752 + 0.010420T - 1.4x10-5T2 kJ/kg*K (273 to 343 K).; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 446.4 | K | N/A | Lecat, 1926 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tboil | 446.4 | K | N/A | Lecat, 1926, 2 | Uncertainty assigned by TRC = 0.5 K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
346.2 | 0.024 | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
45.9 | 379. | Wang, Ying, et al., 1989 | Based on data from 364. to 393. K.; AC |
44.7 ± 0.2 | 390. | Baglay, Gurariy, et al., 1988 | Based on data from 328. to 451. K.; AC |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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. |
---|---|
NIST MS number | 20620 |
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.
Stewart, 2004
Stewart, J.J.P.,
Comparison of the accuracy of semiempirical and some DFT methods for predicting heats of formation,
J. Mol. Model, 2004, 10, 1, 6-10, https://doi.org/10.1007/s00894-003-0157-6
. [all data]
Gerasimov and Gubareva, 1985
Gerasimov, P.A.; Gubareva, A.I.,
Physical chemical properties of vitamin A precursor ketones,
Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1985, 28, 106-109. [all data]
Baglay, Gurariy, et al., 1988
Baglay, A.K.; Gurariy, L.L.; Kuleshov, G.G.,
Physical properties of compounds used in vitamin synthesis,
J. Chem. Eng. Data, 1988, 33, 512-518. [all data]
Baglai, Baev, et al., 1984
Baglai, A.K.; Baev, A.A.; Belousov, V.P.; Beregovykh, V.V.; Grushenko, M.M.; Gurarii, L.L.; Konstantinov, S.G.; Kostyushko, Yu.L.; Kuleshov, G.G.; Pasechnik, N.I.; Petrashkevich, R.I.; Podkovyrov, A.I.; Sitnov, A.A.; Shishko, M.A.; Shulgin, I.L.,
Investigation of the physico-chemical characteristics of substances utilized in the synthesis of vitamins A and E,
Khim. Farm. Zhur., 1984, 18, 1013-1019. [all data]
Lecat, 1926
Lecat, M.,
New binary azeotropes: 3rd list,
Ann. Soc. Sci. Bruxelles, Ser. B, 1926, 45, 284-94. [all data]
Lecat, 1926, 2
Lecat, M.,
New binary azeotropes second list,
Recl. Trav. Chim. Pays-Bas, 1926, 45, 620-627. [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]
Wang, Ying, et al., 1989
Wang, Kun; Ying, Xu-gen; Xia, Ming-Si; Xia, Jian-Zhong; Hu, Ying,
Isobaric vapor-liquid equilibria for 6-methyl-5-hepten-2-one + bis(3-methyl-2-butenyl) ether, bis(3-methyl-2-butenyl) ether + 3,3-dimethyl-2-propen-1-ol, 3,3-dimethyl-2-propen-1-ol + 6-methyl-5-hepten-2-one, and 6-methyl-5-hepten-2-one + 6-methyl-3-isopropenyl-5-hepten-2-one binary systems,
J. Chem. Eng. Data, 1989, 34, 1, 126-130, https://doi.org/10.1021/je00055a034
. [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:
Cp,liquid Constant pressure heat capacity of liquid Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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