4-Br-bicyclo[2.2.2]octane-CO2 anion


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 by: John E. Bartmess

Electron affinity of neutral species

EAneutral (eV) Method Reference Comment
3.87 ± 0.16D-EATaft and Topsom, 1987value altered from reference due to change in acidity scale

Protonation reactions

C9H12BrO2- + Hydrogen cation = C9H13BrO2

By formula: C9H12BrO2- + H+ = C9H13BrO2

Quantity Value Units Method Reference Comment
Deltar1411. ± 9.2kJ/molG+TSKoppel, Mishima, et al., 1993gas phase
Deltar1411. ± 9.2kJ/molG+TSTaft and Topsom, 1987gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Deltar1382. ± 8.4kJ/molIMREKoppel, Mishima, et al., 1993gas phase
Deltar1382. ± 8.4kJ/molIMRETaft and Topsom, 1987gas phase; value altered from reference due to change in acidity scale

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.

Taft and Topsom, 1987
Taft, R.W.; Topsom, R.D., The Nature and Analysis of Substituent Effects, Prog. Phys. Org. Chem., 1987, 16, 1. [all data]

Koppel, Mishima, et al., 1993
Koppel, I.A.; Mishima, M.; Stock, L.M.; Taft, R.W.; Topsom, R.D., Acidities of 4-Substituted Benzoic, Bicyclo[2.2.2]Oct-1-yl and Bicyclo[2.2.2]Oct-2-enyl Carboxylic Acids, J. Phys. Org. Chem., 1993, 6, 12, 685, https://doi.org/10.1002/poc.610061205 . [all data]


Notes

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