Cyclopentane, octyl-
- Formula: C13H26
- Molecular weight: 182.3455
- IUPAC Standard InChIKey: HARXDULSBROLME-UHFFFAOYSA-N
- CAS Registry Number: 1795-20-6
- 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. - Other names: octylcyclopentane; n-Octylcyclopentane
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -250.7 ± 1.9 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 | Heat of combustion of the gas |
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 | -8580.8 ± 1.8 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 | Heat of combustion of the gas; Corresponding ΔfHºliquid = -250.6 kJ/mol (simple calculation by NIST; no Washburn corrections) |
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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 228.7 | K | N/A | Schmidt, 1942 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 228.7 | K | N/A | Schmidt and Gemassmer, 1940 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 65.8 | kJ/mol | N/A | Reid, 1972 | AC |
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 | OV-1 | 100. | 1338.0 | Anders, Anders, et al., 1985 | 55. m/0.21 mm/0.35 μm, N2 |
Packed | Methyl Silicone | 130. | 1340. | Antheaume and Guiochon, 1965 |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SP-2100 | 1337. | Alencar, Alves, et al., 1983 | He, 4. K/min; Column length: 30. m; Column diameter: 0.25 mm; Tstart: 40. C; Tend: 250. C |
References
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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]
Schmidt, 1942
Schmidt, A.W.,
Physical properties of aliphatic compounds,
Ber. Dtsch. Chem. Ges. B, 1942, 75, 1399. [all data]
Schmidt and Gemassmer, 1940
Schmidt, A.W.; Gemassmer, A.,
Physical data of monoalkylcyclopentanes ???.,
Ber. Dtsch. Chem. Ges. B, 1940, 73, 359-66. [all data]
Reid, 1972
Reid, Robert C.,
Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00,
AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637
. [all data]
Anders, Anders, et al., 1985
Anders, G.; Anders, K.; Engewald, W.,
Identification of non-branched alkenylcycloalkanes with a terminal double bond from retention index increments,
Chromatographia, 1985, 20, 2, 83-86, https://doi.org/10.1007/BF02280602
. [all data]
Antheaume and Guiochon, 1965
Antheaume, J.; Guiochon, G.,
Application de la chromatographie en phase gazeuse à l'étude de la composition des fractions moyennes d'un brut pétrolier,
Bull. Soc. Chim. Fr., 1965, 2, 298-307. [all data]
Alencar, Alves, et al., 1983
Alencar, J.W.; Alves, P.B.; Craveiro, A.A.,
Pyrolysis of tropical vegetable oils,
J. Agric. Food Chem., 1983, 31, 6, 1268-1270, https://doi.org/10.1021/jf00120a031
. [all data]
Notes
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- Symbols used in this document:
Tfus Fusion (melting) 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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