Cyclobutanecarboxylic acid methyl ester

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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-83.72 ± 0.31kcal/molCmFuchs and Hallman, 1983 
Δfgas-84.93kcal/molCcrHall and Baldt, 1971 

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-94.42kcal/molCcrHall and Baldt, 1971ALS
Quantity Value Units Method Reference Comment
Δcliquid-811.47 ± 0.31kcal/molCcrHall and Baldt, 1971Corresponding Δfliquid = -94.41 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
45.55297.Hall and Baldt, 1971DH

Phase change 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Δvap10.69 ± 0.02kcal/molCFuchs and Hallman, 1983ALS
Δvap10.7 ± 0.02kcal/molCFuchs and Hallman, 1983AC
Δvap9.50kcal/molVHall and Baldt, 1971ALS
Δvap9.51kcal/molN/AHall and Baldt, 1971DRB

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
9.89340.BGBaldt and Hall, 1971Based on data from 319. to 378. K.; AC

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.

Fuchs and Hallman, 1983
Fuchs, R.; Hallman, J.H., Heats of vaporization of some monosubstituted cyclopropane, cyclobutane, and cyclopentane derivatives. Some observations on the enthalpies of isodesmic ring opening reactions of cyclobutane derivatives, Can. J. Chem., 1983, 61, 503-505. [all data]

Hall and Baldt, 1971
Hall, H.K., Jr.; Baldt, J.H., Thermochemistry of strained-ring bridgehead nitriles and esters, J. Am. Chem. Soc., 1971, 93, 140-145. [all data]

Baldt and Hall, 1971
Baldt, J.H.; Hall, H.K.K., Jr., Thermochemistry of strained-ring bridgehead nitriles and esters, J. Am. Chem. Soc., 1971, 93, 140-145. [all data]


Notes

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