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HCðCCðC 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

C4H- + Hydrogen cation = 1,3-Butadiyne

By formula: C4H- + H+ = C4H2

Quantity Value Units Method Reference Comment
Deltar1507. ± 13.kJ/molD-EAPino, Tulej, et al., 2002gas phase
Deltar1508. ± 12.kJ/molEndoShi and Ervin, 2000gas phase
Quantity Value Units Method Reference Comment
Deltar1473. ± 14.kJ/molH-TSPino, Tulej, et al., 2002gas phase
Deltar1474. ± 13.kJ/molH-TSShi and Ervin, 2000gas 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
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
Deltar1507. ± 13.kJ/molD-EAPino, Tulej, et al., 2002gas phase
Deltar1508. ± 12.kJ/molEndoShi and Ervin, 2000gas phase
Quantity Value Units Method Reference Comment
Deltar1473. ± 14.kJ/molH-TSPino, Tulej, et al., 2002gas phase
Deltar1474. ± 13.kJ/molH-TSShi and Ervin, 2000gas 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.

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]

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]

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]


Notes

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