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Isoprene

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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
Deltafgas75.7 ± 1.0kJ/molCmFraser and Prosen, 1955ALS
Quantity Value Units Method Reference Comment
Deltacgas-3186.6 ± 0.96kJ/molCmFraser and Prosen, 1955Corresponding «DELTA»fgas = 75.73 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
gas314.76J/mol*KN/AMesserly J.F., 1970GT

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
36.2850.Thermodynamics Research Center, 1997Values of S(T) and Cp(T) from other statistical mechanics calculation [ Compton D.A.C., 1977] are in close agreement with recommended ones.; GT
47.75100.
60.95150.
74.81200.
95.64273.15
102.69298.15
103.21300.
129.59400.
152.16500.
171.03600.
186.95700.
200.6800.
212.3900.
222.51000.
231.31100.
238.91200.
245.51300.
251.21400.
256.21500.

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.

Fraser and Prosen, 1955
Fraser, F.M.; Prosen, E.J., Heats of combustion and isomerization of six pentadienes and spiropentane, J. Res. NBS, 1955, 54, 143-148. [all data]

Messerly J.F., 1970
Messerly J.F., Chemical thermodynamic properties of the pentadienes. Third law studies, J. Chem. Eng. Data, 1970, 15, 227-232. [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]

Compton D.A.C., 1977
Compton D.A.C., Conformations of conjugated hydrocarbons. Part 2. A spectroscopic and thermodynamic study of cis- and trans-penta-1,3-diene, J. Chem. Soc. Perkin Trans. 2, 1977, 1311-1315. [all data]


Notes

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