1,3,5,7-Octatetrayne
- Formula: C8H2
- Molecular weight: 98.1015
- IUPAC Standard InChI: InChI=1S/C8H2/c1-3-5-7-8-6-4-2/h1-2H
- IUPAC Standard InChIKey: CDGAYCHXIBGGNI-UHFFFAOYSA-N
- CAS Registry Number: 6165-96-4
- Chemical structure:
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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: Glushko Thermocenter, Russian Academy of Sciences, Moscow
Constant pressure heat capacity of gas
| Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 46.37 | 50. | Dorofeeva O.V., 1991 | There is an appreciable difference with other statistically calculated values [ Dessau L., 1988] because the authors used the overestimated values of vibrational frequencies, see [ Dorofeeva O.V., 1991]. |
| 65.06 | 100. | ||
| 86.18 | 150. | ||
| 106.03 | 200. | ||
| 128.41 | 273.15 | ||
| 134.4 ± 7.0 | 298.15 | ||
| 134.77 | 300. | ||
| 152.52 | 400. | ||
| 164.72 | 500. | ||
| 174.11 | 600. | ||
| 181.85 | 700. | ||
| 188.42 | 800. | ||
| 194.05 | 900. | ||
| 198.91 | 1000. | ||
| 203.11 | 1100. | ||
| 206.74 | 1200. | ||
| 209.88 | 1300. | ||
| 212.61 | 1400. | ||
| 214.99 | 1500. | ||
| 217.06 | 1600. | ||
| 218.87 | 1700. | ||
| 220.47 | 1800. | ||
| 221.87 | 1900. | ||
| 223.11 | 2000. |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Dorofeeva O.V., 1991
Dorofeeva O.V.,
Thermodynamic properties of linear carbon chain molecules with conjugated triple bonds. Part I. Polyacetylenes, H(CC)nH (n=2-6), cyanopolyacetylenes, H(CC)nCN (n=1-5), and dicyanopolyacetylenes, NC(CC)nCN (n=1-4),
Thermochim. Acta, 1991, 178, 273-286. [all data]
Dessau L., 1988
Dessau L.,
Vibrations and thermodynamic functions of long-chain acetylenes,
Z. Phys. Chem. (Leipzig), 1988, 269, 187-190. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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