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2-Methyl-1-butene

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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-35.1 ± 0.84kJ/molEqkWiberg and Hao, 1991Heat of hydration; ALS
Deltafgas-34.8kJ/molN/AGood and Smith, 1979Value computed using «DELTA»fHliquid° value of -60.96±0.84 kj/mol from Good and Smith, 1979 and «DELTA»vapH° value of 26.19 kj/mol from missing citation.; DRB

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
102.97273.15McCullough J.P., 1959Results of more recent statistical calculation [ Durig J.R., 1980] are different from recommended and experimental values up to 3 J/mol*K for S(T) and Cp(T).; GT
109.96298.15
110.50300.
138.91400.
164.85500.
187.11600.
206.10700.
222.38800.
236.48900.
248.661000.
259.241100.
268.401200.
276.351300.
283.301400.
289.321500.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
116.15 ± 0.35320.66Scott D.W., 1949GT
128.37 ± 0.39362.51
140.62 ± 0.42407.11
153.13 ± 0.46453.41
165.35 ± 0.50502.21

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-60.96 ± 0.84kJ/molCcbGood and Smith, 1979ALS
Quantity Value Units Method Reference Comment
Deltacliquid-3335.74 ± 0.80kJ/molCcbGood and Smith, 1979Corresponding «DELTA»fliquid = -60.96 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid254.0J/mol*KN/AChao, Hall, et al., 1983DH
liquid253.97J/mol*KN/ATodd, Oliver, et al., 1947DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
157.3298.15Chao, Hall, et al., 1983T = 12 to 293 K.; DH
157.19298.15Todd, Oliver, et al., 1947T = 12 to 300 K.; 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.

Wiberg and Hao, 1991
Wiberg, K.B.; Hao, S., Enthalpies of hydration of alkenes. 4. Formation of acyclic tert-alcohols, J. Org. Chem., 1991, 56, 5108-5110. [all data]

Good and Smith, 1979
Good, W.D.; Smith, N.K., The enthalpies of combustion of the isomeric pentenes in the liquid state. A warning to combustion calorimetrists about sample drying, J. Chem. Thermodyn., 1979, 11, 111-118. [all data]

McCullough J.P., 1959
McCullough J.P., Thermodynamic properties, vibrational assignment and rotational conformations of 2-methyl-1-butene, J. Am. Chem. Soc., 1959, 81, 1331-1334. [all data]

Durig J.R., 1980
Durig J.R., Torsional spectra of molecules with two internal C3v rotors. 19. Vibrational spectra, torsional potential functions, and conformational and thermodynamic properties of 2-methyl-1-butene, J. Phys. Chem., 1980, 84, 3554-3561. [all data]

Scott D.W., 1949
Scott D.W., Thermodynamic properties of three isomeric pentenes, J. Am. Chem. Soc., 1949, 71, 2767-2773. [all data]

Chao, Hall, et al., 1983
Chao, J.; Hall, K.R.; Yao, J.M., Thermodynamic properties of simple alkenes, Thermochim. Acta, 1983, 64(3), 285-303. [all data]

Todd, Oliver, et al., 1947
Todd, S.S.; Oliver, G.D.; Huffman, H.M., The heat capacities, heats of fusion and entropies of the six pentenes, J. Am. Chem. Soc., 1947, 69, 1519-1525. [all data]


Notes

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