Cyclohexene, 4-methyl-
- Formula: C7H12
- Molecular weight: 96.1702
- IUPAC Standard InChIKey: FSWCCQWDVGZMRD-UHFFFAOYSA-N
- CAS Registry Number: 591-47-9
- 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. - Stereoisomers:
- Other names: 4-Methyl-1-cyclohexene; 4-Methylcyclohexene; 4-Methylcyclohexene-1; 4-Methylcyclohex-1-ene
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Condensed phase thermochemistry data
Go To: Top, Phase change data, Reaction 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:
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 |
---|---|---|---|---|---|
ΔfH°liquid | -18. ± 1. | kcal/mol | Ccb | Lebedev and Smirnova, 1994 | see Lebedev, Kulagina, et al., 1988; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1050. ± 1. | kcal/mol | Ccb | Lebedev and Smirnova, 1994 | see Lebedev, Kulagina, et al., 1988; Corresponding ΔfHºliquid = -18. kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 60.471 | cal/mol*K | N/A | Lebedev, Kulagina, et al., 1988 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
43.121 | 298.15 | Lebedev, Kulagina, et al., 1988 | T = 13.4 to 350 K.; DH |
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
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 376. ± 1. | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 156.88 | K | N/A | Boord, Greenlee, et al., 1950 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tfus | 157.4 | K | N/A | Boord, Greenlee, et al., 1950 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 8.7 ± 0.1 | kcal/mol | GS | Verevkin, Wandschneider, et al., 2000 | Based on data from 275. to 296. K.; AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.8 ± 0.1 | 286. | GS | Verevkin, Wandschneider, et al., 2000 | Based on data from 275. to 296. K.; AC |
8.68 | 307. | A | Stephenson and Malanowski, 1987 | Based on data from 292. to 429. K.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
1.58 | 153.6 | Lebedev and Smirnova, 1994 | AC |
Reaction 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 by: 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
By formula: C7H12 = C7H12
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -1.39 ± 0.07 | kcal/mol | Eqk | Yursha, Kabo, et al., 1974 | gas phase; Heat of isomerization at 463 K |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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-NW-4941 |
NIST MS number | 227868 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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.
Lebedev and Smirnova, 1994
Lebedev, B.; Smirnova, N.,
Themodynamics of cycloalkenes, of their bulk polymerization in the presence of matathesis catalysts and of polyalkenes,
Macromol. Chem. Phys., 1994, 195, 35-63. [all data]
Lebedev, Kulagina, et al., 1988
Lebedev, B.V.; Kulagina, T.G.; Smirnova, N.N.,
Thermodynamics of 4-methylcyclo-hexene, glycollide, and 1,1,3,3,5,5-hexaethylcyclotrisiloxane from 13.4 to 400 K,
J. Chem. Thermodyn., 1988, 20, 1383-1396. [all data]
Boord, Greenlee, et al., 1950
Boord, C.E.; Greenlee, K.W.; Derfer, J.M.,
The Synthesis, Purification and Prop. of Hydrocarbons of Low Mol. Wt., Am. Pet. Inst. Res. Proj. 45, Twelfth Annu. Rep., Ohio State Univ., 1950. [all data]
Verevkin, Wandschneider, et al., 2000
Verevkin, Sergey P.; Wandschneider, Dirk; Heintz, Andreas,
Determination of Vaporization Enthalpies of Selected Linear and Branched C 7 , C 8 , C 9 , C 11 , and C 12 Monoolefin Hydrocarbons from Transpiration and Correlation Gas-Chromatography Methods,
J. Chem. Eng. Data, 2000, 45, 4, 618-625, https://doi.org/10.1021/je990297k
. [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]
Yursha, Kabo, et al., 1974
Yursha, I.A.; Kabo, G.Ya.; Andreevskii, D.N.,
Equilibriums and thermodynamics of the isomerization of methylcyclohexenes,
Neftekhimiya, 1974, 14, 688-693. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion 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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