Cyclopentane, heneicosyl-
- Formula: C26H52
- Molecular weight: 364.6911
- IUPAC Standard InChI: InChI=1S/C26H52/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-23-26-24-21-22-25-26/h26H,2-25H2,1H3
- IUPAC Standard InChIKey: GNECQVKDNNGLCG-UHFFFAOYSA-N
- CAS Registry Number: 6703-82-8
- 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. - Other names: Heneicosane, 1-cyclopentyl-; n-Heneicosylcyclopentane
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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 | -155.0 ± 1.6 | kcal/mol | Ccb | Knowlton and Huffman, 1944 | Reanalyzed by Cox and Pilcher, 1970, Original value = -155.5 kcal/mol |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -4066.5 ± 1.6 | kcal/mol | Ccb | Knowlton and Huffman, 1944 | Reanalyzed by Cox and Pilcher, 1970, Original value = -4066.2 kcal/mol; Corresponding ΔfHºliquid = -155.02 kcal/mol (simple calculation by NIST; no Washburn corrections) |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Knowlton and Huffman, 1944
Knowlton, J.W.; Huffman, H.M.,
The heats of combustion of some substituted eicosanes, heneicosanes and docosanes,
J. Am. Chem. Soc., 1944, 66, 1492-1494. [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]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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