Cyclobutane, methyl-
- Formula: C5H10
- Molecular weight: 70.1329
- IUPAC Standard InChI: InChI=1S/C5H10/c1-5-3-2-4-5/h5H,2-4H2,1H3
- IUPAC Standard InChIKey: BDJAEZRIGNCQBZ-UHFFFAOYSA-N
- CAS Registry Number: 598-61-8
- 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: Methylcyclobutane; 1-Methylcyclobutane
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔcH°gas | -3352. ± 1.3 | kJ/mol | Ccb | Humphrey and Spitzer, 1950 | Corresponding ΔfHºgas = -44.8 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of gas
| Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 36.11 | 50. | Thermodynamics Research Center, 1997 | p=1 bar.; GT |
| 48.84 | 100. | ||
| 60.02 | 150. | ||
| 70.79 | 200. | ||
| 90.58 | 273.15 | ||
| 98.32 | 298.15 | ||
| 98.90 | 300. | ||
| 130.8 | 400. | ||
| 159.8 | 500. | ||
| 184.3 | 600. | ||
| 204.8 | 700. | ||
| 222.3 | 800. | ||
| 237.3 | 900. | ||
| 250.2 | 1000. | ||
| 261.3 | 1100. | ||
| 270.9 | 1200. | ||
| 279.3 | 1300. | ||
| 286.5 | 1400. | ||
| 292.8 | 1500. | ||
| 305.2 | 1750. | ||
| 314.2 | 2000. | ||
| 320.9 | 2250. | ||
| 326.0 | 2500. | ||
| 329.9 | 2750. | ||
| 332.9 | 3000. |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Humphrey and Spitzer, 1950
Humphrey, G.I.; Spitzer, R.,
Bond hybridization in the non-tetrahedral carbon atom. The heats of combustion of spiro-pentane and methylcyclobutane,
J. Chem. Phys., 1950, 18, 902. [all data]
Thermodynamics Research Center, 1997
Thermodynamics Research Center,
Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔcH°gas Enthalpy of combustion of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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