Cyclopentane, 1,3-dimethyl-, cis-

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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
Δfgas-133.6 ± 1.5kJ/molCmJohnson, Prosen, et al., 1949ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
44.4850.Thermodynamics Research Center, 1997p=1 bar. Selected values of S(T) are in good agreement with those calculated by a method of increments [ Scott D.W., 1960, Epstein M.B., 1949]; discrepancies between Cp(T) amount to 1-2 J/mol*K.; GT
57.03100.
73.29150.
91.08200.
122.6273.15
134.5298.15
135.4300.
183.3400.
225.9500.
261.4600.
291.0700.
316.0800.
337.3900.
355.51000.
371.11100.
384.61200.
396.31300.
406.41400.
415.11500.
432.41750.
444.92000.
454.12250.
461.02500.
466.42750.
470.63000.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
161.69 ± 0.32352.20McCullough J.P., 1959GT
172.23 ± 0.34375.20
190.57 ± 0.38415.20
207.77 ± 0.42455.20
226.12 ± 0.45500.20

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.

Johnson, Prosen, et al., 1949
Johnson, W.H.; Prosen, E.J.; Rossini, F.D., Heats of combustion and isomerization of the six C7H14 alkylcyclopentanes, J. Res. NBS, 1949, 42, 251-255. [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]

Scott D.W., 1960
Scott D.W., Chemical thermodynamic properties of methylcyclopentane and 1-cis-3-dimethylcyclopentane, J. Phys. Chem., 1960, 64, 906-908. [all data]

Epstein M.B., 1949
Epstein M.B., Heats, equilibrium constants, and free energies of formation of the dimethylcyclopentanes, J. Res. Nat. Bur. Stand., 1949, 43, 245-250. [all data]

McCullough J.P., 1959
McCullough J.P., Thermodynamics of cyclopentane, methylcyclopentane and 1,cis-3-dimethylcyclopentane: verification of the concept of pseudorotation, J. Am. Chem. Soc., 1959, 81, 5880-5883. [all data]


Notes

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