Cyclopentane, 1-ethyl-3-methyl-, cis-
- Formula: C8H16
- Molecular weight: 112.2126
- IUPAC Standard InChI: InChI=1S/C8H16/c1-3-8-5-4-7(2)6-8/h7-8H,3-6H2,1-2H3/t7-,8+/m1/s1
- IUPAC Standard InChIKey: PQXAPVOKLYINEI-SFYZADRCSA-N
- CAS Registry Number: 2613-66-3
- 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: cis-1-Ethyl-3-Methylcyclopentane; 1-Methyl-3-ethylcyclopentane, cis; 1-Methyl-cis-3-ethylcyclopentane; cis-3-Ethyl-1-methylcyclopentane; 1-Ethyl-3-methylcyclopentane, (Z)-
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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 | -46.46 ± 0.24 | kcal/mol | Ccr | Good, 1971 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -1252.47 ± 0.22 | kcal/mol | Ccr | Good, 1971 | Corresponding ΔfHºliquid = -46.46 kcal/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 |
|---|---|---|---|---|---|
| Tboil | 394.6 | K | N/A | Glasgow, Gordon, et al., 1957 | Uncertainty assigned by TRC = 0.3 K; TRC |
| Tboil | 394.15 | K | N/A | Fenske, Braun, et al., 1947 | Uncertainty assigned by TRC = 0.3 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 9.39 | kcal/mol | N/A | Kireev and Sitnikov, 1941 | AC |
References
Go To: Top, 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.
Good, 1971
Good, W.D.,
The enthalpies of combustion and formation of n-propylcyclopentane and five methylethylcyclopentanes,
J. Chem. Thermodyn., 1971, 3, 97-103. [all data]
Glasgow, Gordon, et al., 1957
Glasgow, A.R.; Gordon, R.J.; Willingham, C.B.; Mair, B.J.; Rossini, F.D.,
Hydrocarbons in the 116 deg C to 126 deg C Fraction of Petroleum,
Anal. Chem., 1957, 29, 357. [all data]
Fenske, Braun, et al., 1947
Fenske, M.R.; Braun, W.G.; Wiegand, R.V.; Quiggle, D.; McCormick, R.H.; Rank, D.H.,
Raman Spectra of Hydrocarbons,
Anal. Chem., 1947, 19, 700. [all data]
Kireev and Sitnikov, 1941
Kireev, V.A.; Sitnikov, I.P.,
Russ. J. Appl. Chem., 1941, 14, 483. [all data]
Notes
Go To: Top, 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°liquid Enthalpy of formation of liquid at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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