1-Octyne
- Formula: C8H14
- Molecular weight: 110.1968
- IUPAC Standard InChIKey: UMIPWJGWASORKV-UHFFFAOYSA-N
- CAS Registry Number: 629-05-0
- 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: Hexylacetylene; Octyne-1; oct-1-yne
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Gas phase thermochemistry data
Go To: Top, 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 | 80.7 ± 3.6 | kJ/mol | Chyd | Rogers, Dagdagan, et al., 1979 |
Phase change data
Go To: Top, Gas 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:
BS - Robert L. Brown and Stephen E. Stein
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 | 399. ± 2. | K | AVG | N/A | Average of 24 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 193.67 | K | N/A | Henne and Greenlee, 1945 | Uncertainty assigned by TRC = 0.1 K; TRC |
Tfus | 193.65 | K | N/A | Anonymous, 1942 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tfus | 194.15 | K | N/A | Campbell and Eby, 1941 | Uncertainty assigned by TRC = 1.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 42.34 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 42.3 ± 0.1 | kJ/mol | C | Hallman, Stephenson, et al., 1983 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
35.83 | 399.4 | N/A | Majer and Svoboda, 1985 | |
38.5 | 372. | A | Stephenson and Malanowski, 1987 | Based on data from 357. to 400. K. See also Eisen and Orav, 1970 and Boublik, Fried, et al., 1984.; AC |
References
Go To: Top, Gas 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.
Rogers, Dagdagan, et al., 1979
Rogers, D.W.; Dagdagan, O.A.; Allinger, N.L.,
Heats of hydrogenation and formation of linear alkynes and a molecular mechanics interpretation,
J. Am. Chem. Soc., 1979, 101, 671-676. [all data]
Henne and Greenlee, 1945
Henne, A.L.; Greenlee, K.W.,
Preparation and Physical Constants of Acetylenic Compounds,
J. Am. Chem. Soc., 1945, 67, 484-5. [all data]
Anonymous, 1942
Anonymous, R.,
, Am. Pet. Inst. Res. Proj. 6, Natl. Bur. Stand., 1942. [all data]
Campbell and Eby, 1941
Campbell, K.N.; Eby, L.T.,
The Reduction of Multiple Carbon-Carbon Bonds III. Further Studies on the Preparation of Olefins from Acetylenes,
J. Am. Chem. Soc., 1941, 63, 2683. [all data]
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Hallman, Stephenson, et al., 1983
Hallman, John H.; Stephenson, W. Kirk; Fuchs, Richard,
Hydrogen bonding and other polar interactions of 1-, 2-, and 4-octyne with organic solvents,
Can. J. Chem., 1983, 61, 9, 2044-2047, https://doi.org/10.1139/v83-353
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Eisen and Orav, 1970
Eisen, O.; Orav, A.,
Eesti NSV Tead. Akad. Toim. Keem. Geol., 1970, 19, 3, 202. [all data]
Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E.,
The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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