- Formula: C8H16
- Molecular weight: 112.2126
- IUPAC Standard InChI:
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- IUPAC Standard InChIKey: WJTCGQSWYFHTAC-UHFFFAOYSA-N
- CAS Registry Number: 292-64-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: Octamethylene
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Gas phase thermochemistry data
Go To: Top, References, Notes
Data compiled as indicated in comments:
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
|fH°gas||-126.1 ± 1.6||kJ/mol||N/A||Spitzer and Huffman, 1947||Value computed using «DELTA»fHliquid° value of -169.4±1.6 kj/mol from Spitzer and Huffman, 1947 and «DELTA»vapH° value of 43.35±0.21 kj/mol from missing citation.; DRB|
|S°gas||366.8 ± 1.3||J/mol*K||N/A||Finke H.L., 1956||GT|
Constant pressure heat capacity of gas
|Cp,gas (J/mol*K)||Temperature (K)||Reference||Comment|
|38.62||50.||Dorofeeva O.V., 1986||S(T) values calculated by [ Stull D.R., 1969] are in good agreement with those selected here; however, the discrepancy in Cp(298.15 K) amounts to 6.2 J/mol*K. S(T) values calculated by molecular mechanics method [ Chang S., 1970] are about 13 J/mol*K less than recommended ones; discrepancies in Cp(T) values amount to 1-2 J/mol*K.; GT|
|146.2 ± 5.0||298.15|
Go To: Top, Gas phase thermochemistry data, Notes
Spitzer and Huffman, 1947
Spitzer, R.; Huffman, H.M., The heats of combustion of cyclopentane, cyclohexane, cycloheptane and cyclooctane, J. Am. Chem. Soc., 1947, 69, 211-213. [all data]
Finke H.L., 1956
Finke H.L., Cycloheptane, cyclooctane, and 1,3,5-cycloheptatriene. Low-temperature thermal properties, vapor pressure, and derived chemical thermodynamic properties, J. Am. Chem. Soc., 1956, 78, 5469-5476. [all data]
Dorofeeva O.V., 1986
Dorofeeva O.V., Thermodynamic properties of twenty-one monocyclic hydrocarbons, J. Phys. Chem. Ref. Data, 1986, 15, 437-464. [all data]
Stull D.R., 1969
Stull D.R., Jr., The Chemical Thermodynamics of Organic Compounds. Wiley, New York, 1969. [all data]
Chang S., 1970
Chang S., The heats of combustion and strain energies of bicyclo[n.m.0]alkanes, J. Am. Chem. Soc., 1970, 92, 3109-3118. [all data]
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas S°gas Entropy of gas at standard conditions fH°gas Enthalpy of formation of gas at standard conditions
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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