Cyclohexanone, 2-methyl-
- Formula: C7H12O
- Molecular weight: 112.1696
- IUPAC Standard InChI: InChI=1S/C7H12O/c1-6-4-2-3-5-7(6)8/h6H,2-5H2,1H3
- IUPAC Standard InChIKey: LFSAPCRASZRSKS-UHFFFAOYSA-N
- CAS Registry Number: 583-60-8
- 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. - Species with the same structure:
- Other names: α-Methylcyclohexanone; 2-Methyl-1-cyclohexanone; 2-Methylcyclohexanone; o-Methylcyclohexanone; 2-Methyl-cyclohexanon; 2-Metilcicloesanone
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, Gas Chromatography, 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: C7H14O = H2 + C7H12O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 62.5 ± 2.3 | kJ/mol | Eqk | Fedoseenko, Yursha, et al., 1983 | gas phase; At 493 K |
=
+
By formula: C7H14O = H2 + C7H12O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 66.6 ± 2.4 | kJ/mol | Eqk | Fedoseenko, Yursha, et al., 1983 | gas phase; At 493 K |
+
=
By formula: H2 + C7H12O = C7H14O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -66.36 | kJ/mol | Chyd | Dokuchaeva, Sibarov, et al., 1981 | liquid phase |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, Gas Chromatography, 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess
View reactions leading to C7H12O+ (ion structure unspecified)
Electron affinity determinations
| EA (eV) | Reference | Comment |
|---|---|---|
| 0.004207 ± 0.000087 | Hammer, Diri, et al., 2003 | B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.05 | PE | Loudet, Grimaud, et al., 1976 | LLK |
| 9.5 ± 0.2 | EI | Fortin, Forest, et al., 1973 | LLK |
Gas Chromatography
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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
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Capillary | SE-30 | 100. | 935. | Golovnya, Syomina, et al., 1997 | 25. m/0.32 mm/1. μm, He |
| Capillary | SE-30 | 110. | 937. | Golovnya, Syomina, et al., 1997 | 25. m/0.32 mm/1. μm, He |
| Capillary | SE-30 | 80. | 929. | Golovnya, Syomina, et al., 1997 | 25. m/0.32 mm/1. μm, He |
| Capillary | SE-30 | 90. | 932. | Golovnya, Syomina, et al., 1997 | 25. m/0.32 mm/1. μm, He |
| Packed | Apiezon L | 130. | 954. | Paris and Alexandre, 1972 | Chromosorb W AW |
| Packed | Apiezon L | 130. | 937. | Wehrli and Kováts, 1959 | Celite; Column length: 2.25 m |
Normal alkane RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Capillary | DB-1 | 60. | 914. | Shimadzu, 2003 | 60. m/0.32 mm/1. μm, He |
| Capillary | DB-1 | 80. | 924. | Shimadzu, 2003 | 60. m/0.32 mm/1. μm, He |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | VF-5 MS | 949. | Leffingwell and Alford, 2011 | 60. m/0.32 mm/0.25 μm, Helium, 2. K/min, 260. C @ 28. min; Tstart: 30. C |
| Capillary | VF-5 MS | 954. | Leffingwell and Alford, 2011 | 60. m/0.32 mm/0.25 μm, Helium, 2. K/min, 260. C @ 28. min; Tstart: 30. C |
| Capillary | HP-5 | 953.1 | Leffingwell and Alford, 2005 | 60. m/0.32 mm/0.25 μm, He, 30. C @ 2. min, 2. K/min, 260. C @ 28. min |
| Capillary | BP-1 | 930. | Health Safety Executive, 2000 | 50. m/0.22 mm/0.75 μm, He, 5. K/min; Tstart: 50. C; Tend: 200. C |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Fedoseenko, Yursha, et al., 1983
Fedoseenko, V.I.; Yursha, I.A.; Kabo, G.Ya.,
Equilibrium and thermodynamics of cyclohexanol dehydrogenation reactions,
Dokl. Akad. Nauk BSSR, 1983, 27, 926-929. [all data]
Dokuchaeva, Sibarov, et al., 1981
Dokuchaeva, T.G.; Sibarov, d.A.; Timofeev, V.F.; Proskuryakov, V.A.,
Kinetics of the dehydrogenation of 2-methylcyclohexanol to 2-methylcyclohexanone over a platinum catalyst,
J. Appl. Chem. USSR, 1981, 54, 1140-1146. [all data]
Hammer, Diri, et al., 2003
Hammer, N.I.; Diri, K.; Jordan, K.D.; Desfrancois, C.; Compton, R.N.,
Dipole-bound anions of carbonyl, nitrile, and sulfoxide containing molecules,
J. Chem. Phys., 2003, 119, 7, 3650-3660, https://doi.org/10.1063/1.1590959
. [all data]
Loudet, Grimaud, et al., 1976
Loudet, M.; Grimaud, M.; Metras, F.; Pfister-Guillouzo, G.,
Interactions intramoleculaires en serie cyclohexanique partie II. Spectres photoelectroniques de chloro-2-cyclohexanones,
J. Mol. Struct., 1976, 35, 213. [all data]
Fortin, Forest, et al., 1973
Fortin, C.J.; Forest, M.; Vaziri, C.; Gravel, D.; Rousseau, Y.,
Spectrometrie de masse des cyclohexanones gem-diphenylees. I. Localisation de la charge positive,
Can. J. Chem., 1973, 51, 3445. [all data]
Golovnya, Syomina, et al., 1997
Golovnya, R.V.; Syomina, L.A.; Samusenko, A.L.,
Temperature changes of sorption parameters of di-n-alkylketones and methylcyclohexanones in capillary gas chromatography,
Russ. Chem. Bull. (Engl. Transl.), 1997, 46, 2, 314-318, https://doi.org/10.1007/BF02494370
. [all data]
Paris and Alexandre, 1972
Paris, C.; Alexandre, P.,
Stereochemical Investigation of Cyclohexane and Terpene Compounds by Gas Chromatography,
J. Chromatogr. Sci., 1972, 10, 6, 402-411, https://doi.org/10.1093/chromsci/10.6.402
. [all data]
Wehrli and Kováts, 1959
Wehrli, A.; Kováts, E.,
Gas-chromatographische Charakterisierung ogranischer Verbindungen. Teil 3: Berechnung der Retentionsindices aliphatischer, alicyclischer und aromatischer Verbindungen,
Helv. Chim. Acta, 1959, 7, 7, 2709-2736, https://doi.org/10.1002/hlca.19590420745
. [all data]
Shimadzu, 2003
Shimadzu,
Gas chromatography analysis of organic solvents using capillary columns (No. 3), 2003, retrieved from http://www.shimadzu.com/apps/form.cfm. [all data]
Leffingwell and Alford, 2011
Leffingwell, J.; Alford, E.D.,
Volatile constituents of the giant pufball mushroom (Calvatia gigantea),
Leffingwell Rep., 2011, 4, 1-17. [all data]
Leffingwell and Alford, 2005
Leffingwell, J.C.; Alford, E.D.,
Volatile constituents of Perique tobacco,
Electron. J. Environ. Agric. Food Chem., 2005, 4, 2, 899-915. [all data]
Health Safety Executive, 2000
Health Safety Executive,
MDHS 96 Volatile organic compounds in air - Laboratory method using pumed solid sorbent tubes, solvent desorption and gas chromatography
in Methods for the Determination of Hazardous Substances (MDHS) guidance, Crown, Colegate, Norwich, 2000, 1-24, retrieved from http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs96.pdf. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
EA Electron affinity ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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