Cyclopentane, 1,3-dimethyl-, trans-

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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-32.47 ± 0.29kcal/molCmJohnson, Prosen, et al., 1949ALS

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
10.7150.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
13.91100.
17.73150.
21.88200.
29.33273.15
32.15298.15
32.36300.
43.79400.
53.97500.
62.45600.
69.53700.
75.50800.
80.59900.
84.971000.
88.701100.
91.921200.
94.721300.
97.131400.
99.211500.
103.31750.
106.32000.
108.52250.
110.22500.
111.52750.
112.53000.

Condensed 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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid-40.68 ± 0.28kcal/molCmJohnson, Prosen, et al., 1949ALS
Quantity Value Units Method Reference Comment
Δcliquid-1095.90 ± 0.26kcal/molCmJohnson, Prosen, et al., 1949Corresponding Δfliquid = -40.66 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid64.900cal/mol*KN/AGross, Oliver, et al., 1953DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
45.619304.03Gross, Oliver, et al., 1953T = 13 to 300 K. Unsmoothed experimental datum.; DH

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]

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]

Gross, Oliver, et al., 1953
Gross, M.E.; Oliver, G.D.; Huffman, H.M., Low-temperature thermal data for some C7H14 alkylcyclopentanes, J. Am. Chem. Soc., 1953, 75, 2801-2804. [all data]


Notes

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