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3,4-Dimethylenecyclobut-1-ene


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
Deltafgas336.kJ/molChydRoth, Lennartz, et al., 1986Mixture cis and trans

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 by: Robert L. Brown and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil345.KN/ABuckingham and Donaghy, 1982 

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

3Hydrogen + 3,4-Dimethylenecyclobut-1-ene = cyclobutane, 1,2-dimethyl-, trans-

By formula: 3H2 + C6H6 = C6H12

Quantity Value Units Method Reference Comment
Deltar-376. ± 1.kJ/molChydRoth, Lennartz, et al., 1986liquid phase; solvent: Isooctane; Mixture cis and trans

Gas phase ion energetics 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C6H6+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.80 ± 0.02PEBieri, Burger, et al., 1977LLK
8.80PEHeilbronner, Gleiter, et al., 1971LLK

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, NIST Free Links, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Roth, Lennartz, et al., 1986
Roth, W.E.; Lennartz, H.W.; Vogel, E.; Leiendecker, M.; Masaji, O., Heats of hydrogenation. 6. Resonance energy of fused [4n]annulenes, Chem. Ber., 1986, 119, 837-843. [all data]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]

Bieri, Burger, et al., 1977
Bieri, G.; Burger, F.; Heilbronner, E.; Maier, J.P., Valence ionization enrgies of hydrocarbons, Helv. Chim. Acta, 1977, 60, 2213. [all data]

Heilbronner, Gleiter, et al., 1971
Heilbronner, E.; Gleiter, R.; Hopf, H.; Homung, V.; deMeijere, A., Photoelectron-spectroscopic evidence for the orbital sequence in fulvene and 3,4-dimethylenecyclobutene, Helv. Chim. Acta, 1971, 54, 783. [all data]


Notes

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