2,3-Diazabicyclo[2.2.1]-hept-2-ene

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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
Δfgas196.kJ/molCcbEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976

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
Δfsolid152.1kJ/molCcbEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976
Quantity Value Units Method Reference Comment
Δcsolid-3262.9 ± 0.71kJ/molCcbEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976

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

Quantity Value Units Method Reference Comment
Δsub55.3 ± 0.6kJ/molN/AEngel, Melaugh, et al., 1976AC
Δsub43.89kJ/molVEngel, Wood, et al., 1974see Engel, Melaugh, et al., 1976; ALS
Δsub43.9kJ/molN/AEngel, Wood, et al., 1974DRB

Reaction 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

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

2,3-Diazabicyclo[2.2.1]-hept-2-ene = Bicyclo[2.1.0]pentane + Nitrogen

By formula: C5H8N2 = C5H8 + N2

Quantity Value Units Method Reference Comment
Δr-22. ± 10.kJ/molCphaHerman and Goodman, 1989solid phase; solvent: Acetonitrile/water

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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.

Engel, Wood, et al., 1974
Engel, P.S.; Wood, J.L.; Sweet, J.A.; Margrave, J.L., Thermochemistry of azoalkanes, J. Am. Chem. Soc., 1974, 96, 2381-2387. [all data]

Engel, Melaugh, et al., 1976
Engel, P.S.; Melaugh, R.A.; Mansson, M.; Timberlake, J.W.; Garner, A.W.; Rossini, F.D., Thermochemistry of nine diazenes (azo compounds), J. Chem. Thermodyn., 1976, 8, 607-621. [all data]

Herman and Goodman, 1989
Herman, M.S.; Goodman, J.L., Determination of the enthalpy and reaction volume changes of organic photoreactions using photoacoustic calorimetry, J. Am. Chem. Soc., 1989, 111, 1849-1854. [all data]


Notes

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