norbornadienide anion


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: John E. Bartmess

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Individual Reactions

C7H7- + Hydrogen cation = 2,5-Norbornadiene

By formula: C7H7- + H+ = C7H8

Quantity Value Units Method Reference Comment
Δr399.5 ± 1.8kcal/molG+TSLee and Squires, 1986gas phase; Between EtNH2, nPrNH2
Quantity Value Units Method Reference Comment
Δr391.3 ± 1.5kcal/molIMRBLee and Squires, 1986gas phase; Between EtNH2, nPrNH2
Δr389.0 ± 5.0kcal/molIMRBWright and Beauchamp, 1981gas phase

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
1.2860 ± 0.0060LPESGunion, Karney, et al., 1996 

Protonation reactions

C7H7- + Hydrogen cation = 2,5-Norbornadiene

By formula: C7H7- + H+ = C7H8

Quantity Value Units Method Reference Comment
Δr399.5 ± 1.8kcal/molG+TSLee and Squires, 1986gas phase; Between EtNH2, nPrNH2
Quantity Value Units Method Reference Comment
Δr391.3 ± 1.5kcal/molIMRBLee and Squires, 1986gas phase; Between EtNH2, nPrNH2
Δr389.0 ± 5.0kcal/molIMRBWright and Beauchamp, 1981gas phase

References

Go To: Top, 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.

Lee and Squires, 1986
Lee, R.E.; Squires, R.R., Anionic homoaromaticity: A gas phase experimental study, J. Am. Chem. Soc., 1986, 105, 5078. [all data]

Wright and Beauchamp, 1981
Wright, C.A.; Beauchamp, J.L., Infrared spectra of gas phase ions and their use in elucidating reaction mechanisms. Identification of C7H7- structural isomers by multiphoton electron detachment using a low-powered laser, J. Am. Chem. Soc., 1981, 103, 6499. [all data]

Gunion, Karney, et al., 1996
Gunion, R.F.; Karney, W.; Wenthold, P.G.; Borden, W.T.; Lineberger, W.C., Ultraviolet Photoelectron Spectroscopy of Some C7H7- Isomers: Quadricyclanide, Norbornadienide, Cycloheptatrienide, and 1,6-Heptadiynide, J. Am. Chem. Soc., 1996, 118, 21, 5074, https://doi.org/10.1021/ja954026f . [all data]


Notes

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