Cyclohexane, pentyl-
- Formula: C11H22
- Molecular weight: 154.2924
- IUPAC Standard InChI: InChI=1S/C11H22/c1-2-3-5-8-11-9-6-4-7-10-11/h11H,2-10H2,1H3
- IUPAC Standard InChIKey: HLTMUYBTNSVOFY-UHFFFAOYSA-N
- CAS Registry Number: 4292-92-6
- 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: Cyclohexane, n-pentyl-; Pentane, 1-cyclohexyl-; Pentylcyclohexane; 1-Cyclohexylpentane; Amylcyclohexane; n-Amyl cyclohexane; n-Pentylcyclohexane
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Gas phase thermochemistry data
Go To: Top, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -55.88 ± 0.40 | kcal/mol | Ccb | Prosen, Johnson, et al., 1946 |
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 | -1730.18 ± 0.37 | kcal/mol | Ccb | Prosen, Johnson, et al., 1946 | Corresponding ΔfHºliquid = -55.85 kcal/mol (simple calculation by NIST; no Washburn corrections) |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 477.0 | K | N/A | Smith and Pennekamp, 1945 | Uncertainty assigned by TRC = 0.6 K; TRC |
| Tboil | 474.8 | K | N/A | Signaigo and Cramer, 1933 | Uncertainty assigned by TRC = 1.5 K; TRC |
| Tboil | 469.4 | K | N/A | Stratford, 1929 | Uncertainty assigned by TRC = 4. K; TRC |
| Tboil | 472.15 | K | N/A | Bourguel, 1927 | Uncertainty assigned by TRC = 2. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 12.9 ± 0.3 | kcal/mol | AVG | N/A | Average of 6 values; Individual data points |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D.,
Heats of formation and combustion of the normal alkylcyclopentanes and cyclohexanes and the increment per CH2 group for several homologous series of hydrocarbons,
J. Res. NBS, 1946, 37, 51-56. [all data]
Smith and Pennekamp, 1945
Smith, H.A.; Pennekamp, E.F.H.,
The Catalytic Hydrogenation of the Benzene Nucleus II. The Hydrogenation of Benzene and Mono-alkylkbenzenes,
J. Am. Chem. Soc., 1945, 67, 276. [all data]
Signaigo and Cramer, 1933
Signaigo, F.K.; Cramer, P.L.,
The preparation of some mono- and dialkylcylohexanes,
J. Am. Chem. Soc., 1933, 55, 3326-32. [all data]
Stratford, 1929
Stratford, R.,
Ann. Off. Natl. Combust. Liq. (Fr.), 1929, 4, 83. [all data]
Bourguel, 1927
Bourguel, M.,
Bull. Soc. Chim. Fr., 1927, 41, 1475. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, 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 ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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