Cycloheptanone
- Formula: C7H12O
- Molecular weight: 112.1696
- IUPAC Standard InChIKey: CGZZMOTZOONQIA-UHFFFAOYSA-N
- CAS Registry Number: 502-42-1
- 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: Ketocycloheptane; Ketoheptamethylene; Suberon; Suberone
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -248. ± 1.3 | kJ/mol | Ccb | Wolf, 1972 | ALS |
ΔfH°gas | -247. ± 2. | kJ/mol | Ccb | Skuratov and Shtekher, 1958 | Heat of formation derived by Cox and Pilcher, 1970; ALS |
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
46.85 | 50. | Thermodynamics Research Center, 1997 | p=1 bar.; GT |
57.50 | 100. | ||
74.03 | 150. | ||
93.15 | 200. | ||
125.80 | 273.15 | ||
137.78 | 298.15 | ||
138.68 | 300. | ||
186.14 | 400. | ||
228.00 | 500. | ||
262.84 | 600. | ||
291.71 | 700. | ||
315.87 | 800. | ||
336.27 | 900. | ||
353.60 | 1000. | ||
368.4 | 1100. | ||
381.1 | 1200. | ||
392.0 | 1300. | ||
401.3 | 1400. | ||
409.4 | 1500. |
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 |
---|---|---|---|---|---|
ΔfH°liquid | -297.6 ± 1.1 | kJ/mol | Ccb | Wolf, 1972 | |
ΔfH°liquid | -299. ± 1. | kJ/mol | Ccb | Skuratov and Shtekher, 1958 | Heat of formation derived by Cox and Pilcher, 1970 |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -4172.0 ± 1.0 | kJ/mol | Ccb | Wolf, 1972 | Corresponding ΔfHºliquid = -297.57 kJ/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -4172. | kJ/mol | Ccb | Skuratov, Kozina, et al., 1958 | Corresponding ΔfHºliquid = -297. kJ/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -4170.2 ± 1.3 | kJ/mol | Ccb | Skuratov and Shtekher, 1958 | Reanalyzed by Cox and Pilcher, 1970, Original value = -4153. ± 0.1 kJ/mol; Corresponding ΔfHºliquid = -299.4 kJ/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -4203.2 | kJ/mol | Ccb | Zubova, 1901 | Corresponding ΔfHºliquid = -266. kJ/mol (simple calculation by NIST; no Washburn corrections) |
Reaction 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 as indicated in comments:
B - John E. Bartmess
ALS - 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
C7H11O- + =
By formula: C7H11O- + H+ = C7H12O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1537. ± 9.2 | kJ/mol | D-EA | Zimmerman, Jackson, et al., 1978 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1506. ± 10. | kJ/mol | H-TS | Zimmerman, Jackson, et al., 1978 | gas phase; B |
By formula: H2 + C7H12O = C7H14O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -62.5 ± 0.4 | kJ/mol | Chyd | Wiberg, Crocker, et al., 1991 | liquid phase; ALS |
ΔrH° | -46. ± 1. | kJ/mol | Chyd | Wiberg, Crocker, et al., 1991 | gas phase; ALS |
By formula: 3H2 + C7H6O = C7H12O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -282.8 ± 1.3 | kJ/mol | Chyd | Turner, Meador, et al., 1957 | liquid phase; solvent: Acetic acid; ALS |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wolf, 1972
Wolf, G.,
Thermochemische Untersuchungen an cyclischen Ketonen,
Helv. Chim. Acta, 1972, 55, 1446-1459. [all data]
Skuratov and Shtekher, 1958
Skuratov, S.M.; Shtekher, S.M.,
On the heat combustion of cycloheptanone,
Trans. Faraday Soc., 1958, 4883. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Thermodynamics Research Center, 1997
Thermodynamics Research Center,
Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]
Skuratov, Kozina, et al., 1958
Skuratov, S.M.; Kozina, M.P.; Shtocher, S.M.; Prevalova, N.M.; Kamkina, L.S.; Zuko, V.D.,
Heats of combustion of cyclic compounds,
Bull. Chem. Thermodyn., 1958, 1, 21. [all data]
Zubova, 1901
Zubova, P.,
Data about heat of combustion of compound cycle structure,
Zh. Fiz. Khim., 1901, 33, 708-722. [all data]
Zimmerman, Jackson, et al., 1978
Zimmerman, A.H.; Jackson, R.L.; Janousek, B.K.; Brauman, J.J.,
Electron photodetachment from cyclic enolate anions in the gas phase: Electron affinities of cyclic enolate radicals,
J. Am. Chem. Soc., 1978, 100, 4674. [all data]
Wiberg, Crocker, et al., 1991
Wiberg, K.B.; Crocker, L.S.; Morgan, K.M.,
Thermochemical studies of carbonyl compounds. 5. Enthalpies of reduction of carbonyl groups,
J. Am. Chem. Soc., 1991, 113, 3447-3450. [all data]
Turner, Meador, et al., 1957
Turner, R.B.; Meador, W.R.; Doering, W.E.; Knox, L.H.; Mayer, J.R.; Wiley, D.W.,
Heats of hydrogenation. III. Hydrogenation of cycllooctatetraene and of some seven-membered non-benzenoid aromatic compounds,
J. Am. Chem. Soc., 1957, 79, 4127-4133. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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