Cyclobutane-1,3-dione

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

Quantity Value Units Method Reference Comment
Δcsolid-450.7 ± 0.5kcal/molCcbChickos and Sherwood, 1978Corresponding Δfsolid = -62.1 kcal/mol (simple calculation by NIST; no Washburn corrections)

Phase change 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
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Δsub17.6 ± 0.5kcal/molVChickos and Sherwood, 1978ALS
Δsub17.6 ± 0.88kcal/molHSAChickos and Sherwood, 1978Based on data from 274. to 322. 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.

Chickos and Sherwood, 1978
Chickos, J.S.; Sherwood, D.E., Jr., Mechanism of thermolysis of diketene in the gas phase, J. Org. Chem., 1978, 43, 1146-1150. [all data]


Notes

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