Cyclopentane

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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
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-76.40 ± 0.79kJ/molCcbMcCullough, Pennington, et al., 1959ALS
Δfgas-76.9kJ/molN/ASpitzer and Huffman, 1947Value computed using ΔfHliquid° value of -105.6±1.8 kj/mol from Spitzer and Huffman, 1947 and ΔvapH° value of 28.7 kj/mol from Prosen, Johnson, et al., 1946.; DRB
Δfgas-77.24 ± 0.75kJ/molCcbProsen, Johnson, et al., 1946ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
37.5850.Dorofeeva O.V., 1986Recommended values are in good agreement with those calculated by [ Kilpatrick J.E., 1947, McCullough J.P., 1959] at low temperatures. The discrepancies increase at higher temperatures and amount to 1.8 J/mol*K for S(1500 K) and 2.1 J/mol*K for Cp(1500 K) obtained by [ McCullough J.P., 1959]. Calculation [ Sundaram S., 1963] seems to be incorrect because discrepancies with these data reach 23 and 7 J/mol*K for S(T) and Cp(T), respectively.; GT
40.18100.
45.30150.
54.19200.
74.48273.15
82.8 ± 2.0298.15
83.39300.
118.15400.
150.05500.
177.07600.
199.70700.
218.80800.
235.02900.
248.881000.
260.761100.
270.961200.
279.751300.
287.341400.
293.921500.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
93.96 ± 0.19329.05McCullough J.P., 1959Please also see Spitzer R., 1946.; GT
102.01 ± 0.84353.
108.16 ± 0.84372.
117.3 ± 1.3395.
117.09 ± 0.23395.05
126.3 ± 1.3424.
138.7 ± 1.3463.
139.47 ± 0.28463.10
150.7 ± 1.7503.
160.1 ± 1.7539.

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.

McCullough, Pennington, et al., 1959
McCullough, J.P.; Pennington, R.E.; Smith, J.C.; Hossenlopp, I.A.; Waddington, G., 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]

Spitzer and Huffman, 1947
Spitzer, R.; Huffman, H.M., The heats of combustion of cyclopentane, cyclohexane, cycloheptane and cyclooctane, J. Am. Chem. Soc., 1947, 69, 211-213. [all data]

Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D., Heats of formation and combustion of the normal alkylcyclopentanes and cyclohexanes and the increment per CH2 group for several homologous series of hydrocarbons, J. Res. NBS, 1946, 37, 51-56. [all data]

Dorofeeva O.V., 1986
Dorofeeva O.V., Thermodynamic properties of twenty-one monocyclic hydrocarbons, J. Phys. Chem. Ref. Data, 1986, 15, 437-464. [all data]

Kilpatrick J.E., 1947
Kilpatrick J.E., The thermodynamics and molecular structure of cyclopentane, J. Am. Chem. Soc., 1947, 69, 2483-2488. [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]

Sundaram S., 1963
Sundaram S., Thermodynamic functions of some propellants, Z. Phys. Chem. (Frankfurt), 1963, 36, 376-377. [all data]

Spitzer R., 1946
Spitzer R., The heat capacity of gaseous cyclopentane, cyclohexane and methylcyclohexane, J. Am. Chem. Soc., 1946, 68, 2537-2538. [all data]


Notes

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