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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
Deltafgas-76.40 ± 0.79kJ/molCcbMcCullough, Pennington, et al., 1959ALS
Deltafgas-76.9kJ/molN/ASpitzer and Huffman, 1947Value computed using «DELTA»fHliquid° value of -105.6±1.8 kj/mol from Spitzer and Huffman, 1947 and «DELTA»vapH° value of 28.7 kj/mol from Prosen, Johnson, et al., 1946.; DRB
Deltafgas-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.

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, References, Notes

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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid-105.6 ± 1.8kJ/molCcbSpitzer and Huffman, 1947ALS
Deltafliquid-105.9 ± 0.75kJ/molCcbProsen, Johnson, et al., 1946ALS
Quantity Value Units Method Reference Comment
Deltacliquid-3291.4 ± 0.6kJ/molCcbKaarsemaker and Coops, 1952Corresponding «DELTA»fliquid = -105.3 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-3291.2 ± 1.3kJ/molCcbSpitzer and Huffman, 1947Corresponding «DELTA»fliquid = -105.5 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-3290.9 ± 0.71kJ/molCcbProsen, Johnson, et al., 1946Corresponding «DELTA»fliquid = -105.8 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid204.14J/mol*KN/ADouslin and Huffman, 1946DH
liquid204.47J/mol*KN/AAston, Fink, et al., 1943DH
liquid206.7J/mol*KN/AJacobs and Parks, 1934Extrapolation below 90 K, 53.09 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
126.74298.15Tanaka, 1985DH
126.17293.15Siddiqi, Svejda, et al., 1983DH
126.873298.15Fortier, D'Arcy, et al., 1979DH
127.28298.15Jolicoeur, Boileau, et al., 1975DH
127.44300.Szasz, Morrison, et al., 1947T = 14 to 300 K.; DH
126.78298.15Douslin and Huffman, 1946T = 12 to 300 K.; DH
128.83298.15Aston, Fink, et al., 1943T = 15 to 300 K.; DH
125.90293.7Jacobs and Parks, 1934T = 93 to 294 K. Value is unsmoothed experimental datum.; DH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Notes

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]

Kaarsemaker and Coops, 1952
Kaarsemaker, S.; Coops, J., Thermal quantities of some cycloparaffins. Part III. Results of measurements, Rec. Trav. Chim. Pays/Bas, 1952, 71, 261. [all data]

Douslin and Huffman, 1946
Douslin, D.R.; Huffman, H.M., The heat capacities, heats of transition, heats of fusion and entropies of cyclopentane, methylcyclopentane and methylcylohexane, J. Am. Chem. Soc., 1946, 68, 173-176. [all data]

Aston, Fink, et al., 1943
Aston, J.G.; Fink, H.L.; Schumann, S.C., The heat capacity and entropy, heats of transition, fusion and vaporization and the vapor pressures of cyclopentane. Evidence for a non-planar structure, J. Am. Chem. Soc., 1943, 65, 341-346. [all data]

Jacobs and Parks, 1934
Jacobs, C.J.; Parks, G.S., Thermal data on organic compounds. XIV. Some heat capacity, entropy and free energy data for cyclic substances, J. Am. Chem. Soc., 1934, 56, 1513-1517. [all data]

Tanaka, 1985
Tanaka, R., Excess heat capacities for mixtures of benzene with cyclopentane, methylcyclohexane, and cyclooctane at 298.15 K, J. Chem. Eng. Data, 1985, 30, 267-269. [all data]

Siddiqi, Svejda, et al., 1983
Siddiqi, M.A.; Svejda, P.; Kohler, F., A generalized van der Waals equation of state II. Excess heat capacities of mixtures containing cycloalkanes (C5,C6), methylcycloalkanes (C5,C6) and n-decane, Ber. Bunsenges. Phys. Chem., 1983, 87, 1176-1181. [all data]

Fortier, D'Arcy, et al., 1979
Fortier, J.-L.; D'Arcy, P.J.; Benson, G.C., Heat capacities of binary cycloalkane mixtures at 298.15 K, Thermochim. Acta, 1979, 28, 37-43. [all data]

Jolicoeur, Boileau, et al., 1975
Jolicoeur, C.; Boileau, J.; Bazinet, S.; Picker, P., Thermodynamic properties of aqueous organic solutes in relation to their structure. Part II. Apparent molal volumes and heat capacities of c-alkylamine hydrobromides in water, Can. J. Chem., 1975, 53, 716-722. [all data]

Szasz, Morrison, et al., 1947
Szasz, G.J.; Morrison, J.A.; Pace, E.L.; Aston, J.G., Thermal properties of cyclopentane and its use as a standard substance in low temperature thermal measurements, J. Chem. Phys., 1947, 15, 562-564. [all data]


Notes

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