Bicyclo[2.1.0]pent-2-ene


Gas phase thermochemistry data

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas79.6kcal/molChydRoth, Adamczak, et al., 1991 

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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 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

2Hydrogen + Bicyclo[2.1.0]pent-2-ene = Cyclopentane

By formula: 2H2 + C5H6 = C5H10

Quantity Value Units Method Reference Comment
Δr-98.0 ± 0.5kcal/molChydRoth, Klarner, et al., 1980liquid phase; solvent: Heptane

Bicyclo[2.1.0]pent-2-ene = 1,3-Cyclopentadiene

By formula: C5H6 = C5H6

Quantity Value Units Method Reference Comment
Δr-47.8 ± 0.5kcal/molCisoRoth, Klarner, et al., 1980liquid phase; solvent: Heptane

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Reaction 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C5H6+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.0PEAndrews, Baldwin, et al., 1980LLK
8.6PEAndrews, Baldwin, et al., 1980Vertical value; LLK

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Notes

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

Roth, Adamczak, et al., 1991
Roth, W.R.; Adamczak, O.; Breuckmann, R.; Lennartz, H.-W.; Boese, R., Die Berechnung von Resonanzenergien; das MM2ERW-Kraftfeld, Chem. Ber., 1991, 124, 2499-2521. [all data]

Roth, Klarner, et al., 1980
Roth, W.R.; Klarner, F.-G.; Lennartz, H.-W., Heats of hydrogenation. II. Heat of hydrogenation of bicyclo[2.1.0]pent-2-ene, an antiaromatic system, Chem. Ber., 1980, 113, 1806-1818. [all data]

Andrews, Baldwin, et al., 1980
Andrews, G.D.; Baldwin, J.E.; Gilbert, K.E., Photoelectron spectrum of bicyclo[2.1.0]pent-2-ene: Electronic destabilization of a homo[4 n]annulene, J. Org. Chem., 1980, 45, 1523. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References