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Cyclopentane, 1,1-dimethyl-

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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
Deltafgas-138.3 ± 1.2kJ/molCmJohnson, Prosen, et al., 1949ALS
Quantity Value Units Method Reference Comment
gas359.28J/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 (J/mol*K) Temperature (K) Reference Comment
44.3550.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
57.03100.
73.27150.
90.66200.
121.5273.15
133.3298.15
134.2300.
182.2400.
225.3500.
261.3600.
291.3700.
316.4800.
337.8900.
356.11000.
371.71100.
385.21200.
396.81300.
406.91400.
415.61500.
432.81750.
445.22000.
454.32250.
461.32500.
466.62750.
470.83000.

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
Deltafliquid-172.1 ± 1.1kJ/molCmJohnson, Prosen, et al., 1949ALS
Quantity Value Units Method Reference Comment
Deltacliquid-4583.3 ± 1.0kJ/molCmJohnson, Prosen, et al., 1949Corresponding «DELTA»fliquid = -172.0 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid265.01J/mol*KN/AGross, Oliver, et al., 1953DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
187.36299.81Gross, Oliver, et al., 1953T = 13 to 300 K. Unsmoothed experimental datum.; DH

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

2Hydrogen + 5,5-Dimethylbicyclo[2.1.0]pent-2-ene = Cyclopentane, 1,1-dimethyl-

By formula: 2H2 + C7H10 = C7H14

Quantity Value Units Method Reference Comment
Deltar-406. ± 0.8kJ/molChydRoth, Klarner, et al., 1980liquid phase; solvent: Cyclohexane

2Hydrogen + 1,3-Cyclopentadiene, 5,5-dimethyl- = Cyclopentane, 1,1-dimethyl-

By formula: 2H2 + C7H10 = C7H14

Quantity Value Units Method Reference Comment
Deltar-225. ± 0.4kJ/molChydRoth, Klarner, et al., 1980liquid phase; solvent: Cyclohexane

Hydrogen + 5,5-Dimethylbicyclo[2.2.0]pentane = Cyclopentane, 1,1-dimethyl-

By formula: H2 + C7H12 = C7H14

Quantity Value Units Method Reference Comment
Deltar-230. ± 0.4kJ/molChydRoth, Klarner, et al., 1980liquid phase; solvent: Cyclohexane

2Hydrogen + Spiro[cyclopropane(1,5')bicyclo[2.1.0]pentane] = Cyclopentane, 1,1-dimethyl-

By formula: 2H2 + C7H10 = C7H14

Quantity Value Units Method Reference Comment
Deltar-427. ± 1.kJ/molChydRoth, Adamczak, et al., 1991liquid phase

References

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

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]

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]

Roth, Klarner, et al., 1980
Roth, W.R.; Klarner, F.-G.; Lennartz, H.-W., Heats of hydrogenation. II. Heat of hydrogenation of bicyclo[2.1.0]pent-2-ene, an antiaromatic system, Chem. Ber., 1980, 113, 1806-1818. [all data]

Roth, Adamczak, et al., 1991
Roth, W.R.; Adamczak, O.; Breuckmann, R.; Lennartz, H.-W.; Boese, R., Die Berechnung von Resonanzenergien; das MM2ERW-Kraftfeld, Chem. Ber., 1991, 124, 2499-2521. [all data]


Notes

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