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«alpha»-Methylstyrene

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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
Deltafgas28.27 ± 0.34kcal/molEqkGuthrie, 1978ALS
Quantity Value Units Method Reference Comment
Deltacgas-1215.05kcal/molCcbKrall and Roberts, 1958Corresponding «DELTA»fgas = 27.01 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
10.8850.Thermodynamics Research Center, 1997p=1 bar.; GT
13.72100.
17.63150.
22.50200.
30.679273.15
33.578298.15
33.791300.
44.857400.
54.271500.
61.93600.
68.14700.
73.26800.
77.51900.
81.091000.
84.131100.
86.691200.
88.891300.
90.771400.
92.381500.

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
Deltacliquid-1204.87kcal/molCcbRoberts and Jessup, 1951Corresponding «DELTA»fliquid = 16.83 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-1217.3kcal/molCcbLemoult, 1911Corresponding «DELTA»fliquid = 29.3 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-1195.1kcal/molCcbAuwsers, Roth, et al., 1910Corresponding «DELTA»fliquid = 7.1 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid58.27cal/mol*KN/ALebedev and Rabinovich, 1971DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
48.33300.Lebedev and Rabinovich, 1971T = 60 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.

Guthrie, 1978
Guthrie, J.P., Equilibrium constants for a series of simple aldol condensations, and linear free energy relations with other carbonyl addition reactions, Can. J. Chem., 1978, 56, 962-973. [all data]

Krall and Roberts, 1958
Krall, R.E.; Roberts, J.D., Strain variation in the unsaturated cyclobutane ring, Am. Chem. Soc. Div. Pet. Chem., 1958, 3, 63-68. [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]

Roberts and Jessup, 1951
Roberts, D.E.; Jessup, R.S., Heat of polymerization of alpha-methylstyrene from heats of combustion of monomer and four polymer fractions, J. Res. NBS, 1951, 46, 11-17. [all data]

Lemoult, 1911
Lemoult, M.P., Thermochimie. - Recherches sur les derives du styrolene; rectification de quelques erreurs experimentales, Compt. Rend., 1911, 152, 1402-1404. [all data]

Auwsers, Roth, et al., 1910
Auwsers, K.; Roth, W.A.; Eisenlohr, F., III. Verbrennungswarmen von Terpenen und Styrolen, Justus Liebigs Ann. Chem., 1910, 267-290. [all data]

Lebedev and Rabinovich, 1971
Lebedev, B.V.; Rabinovich, I.B., Heat capacities and thermodynamic functions of a-methylstyrene and poly(a-methylstyrene), Tr. Khim. Khim. Tekhnol., 1971, 1, 12-15. [all data]


Notes

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