Cyclopentane, 1,2-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-30.96 ± 0.32kcal/molCmJohnson, Prosen, et al., 1949ALS
Quantity Value Units Method Reference Comment
gas87.510cal/mol*KN/AStull D.R., 1969This value was obtained using low temperature data of [ Gross M.E., 1953].; GT

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
10.6950.Thermodynamics Research Center, 1997p=1 bar. Recommended values are in close agreement with those calculated by a method of increments [ Epstein M.B., 1949] at low temperatures. Discrepancies increase up to 2-4 J/mol*K at T=1500 K.; GT
14.74100.
18.33150.
22.15200.
29.28273.15
32.05298.15
32.27300.
43.59400.
53.82500.
62.38600.
69.50700.
75.50800.
80.62900.
84.991000.
88.741100.
91.971200.
94.741300.
97.161400.
99.241500.
103.41750.
106.42000.
108.62250.
110.22500.
111.52750.
112.53000.

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]

Stull D.R., 1969
Stull D.R., Jr., The Chemical Thermodynamics of Organic Compounds. Wiley, New York, 1969. [all data]

Gross M.E., 1953
Gross M.E., Low-temperature thermal data for some C7H14 alkylcyclopentanes, J. Am. Chem. Soc., 1953, 75, 2801-2804. [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]

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]


Notes

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