HCðCCðC 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
3.561 ± 0.010LPDPino, Tulej, et al., 2002 
3.558 ± 0.015LPESTaylor, Xu, et al., 1998 

Protonation reactions

C4H- + Hydrogen cation = 1,3-Butadiyne

By formula: C4H- + H+ = C4H2

Quantity Value Units Method Reference Comment
Δr360.3 ± 3.2kcal/molD-EAPino, Tulej, et al., 2002gas phase
Δr360.4 ± 2.9kcal/molEndoShi and Ervin, 2000gas phase
Quantity Value Units Method Reference Comment
Δr352.1 ± 3.3kcal/molH-TSPino, Tulej, et al., 2002gas phase
Δr352.2 ± 3.0kcal/molH-TSShi and Ervin, 2000gas phase

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.

Pino, Tulej, et al., 2002
Pino, T.; Tulej, M.; Guthe, F.; Pachkov, M.; Maier, J.P., Photodetachment spectroscopy of the C2nH- (n=2-4) anions in the vicinity of their electron detachment threshold, J. Chem. Phys., 2002, 116, 14, 6126-6131, https://doi.org/10.1063/1.1451248 . [all data]

Taylor, Xu, et al., 1998
Taylor, T.R.; Xu, C.S.; Neumark, D.M., Photoelectron spectra of the C2nH- (n=1-4) and C2nD- (n=1-3) anions, J. Chem. Phys., 1998, 108, 24, 10018-10026, https://doi.org/10.1063/1.476462 . [all data]

Shi and Ervin, 2000
Shi, Y.; Ervin, K.M., Gas-phase acidity and C-H bond energy of diacetylene, Chem. Phys. Lett., 2000, 318, 1-3, 149-154, https://doi.org/10.1016/S0009-2614(00)00023-3 . [all data]


Notes

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