HCðCCðCCðC 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
3.8090 ± 0.0010N/AGarand, Yacovitch, et al., 2010Calns says linear H-terminated structure for anion
3.7960 ± 0.0050LPDPino, Tulej, et al., 2002 
3.809 ± 0.015LPESTaylor, Xu, et al., 1998 
3.96 ± 0.26D-EANatterer, Koch, et al., 1994Acidity between (Me3Si)2NH and 4-Me-pyrazole

Protonation reactions

C6H- + Hydrogen cation = 1,3,5-Hexatriyne

By formula: C6H- + H+ = C6H2

Quantity Value Units Method Reference Comment
Deltar1501. ± 21.kJ/molD-EAGarand, Yacovitch, et al., 2010gas phase; Calns says linear H-terminated structure for anion
Deltar1486. ± 13.kJ/molG+TSNatterer, Koch, et al., 1994gas phase; Acidity between (Me3Si)2NH and 4-Me-pyrazole
Quantity Value Units Method Reference Comment
Deltar1467. ± 21.kJ/molH-TSGarand, Yacovitch, et al., 2010gas phase; Calns says linear H-terminated structure for anion
Deltar1452. ± 13.kJ/molIMRBNatterer, Koch, et al., 1994gas phase; Acidity between (Me3Si)2NH and 4-Me-pyrazole

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.

Garand, Yacovitch, et al., 2010
Garand, E.; Yacovitch, T.I.; Zhou, J.; Sheehan, S.M.; Neumark, D.M., Slow photoelectron velocity-map imaging of the CnH- (n=5-9) anions, Chem. Sci., 2010, 1, 2, 192-201, https://doi.org/10.1039/c0sc00164c . [all data]

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]

Natterer, Koch, et al., 1994
Natterer, J.; Koch, W.; Schroder, D.; Goldberg, N.; Schwarz, H., Combined experimental and theoretical study of the C-H bond strength and the gas phase acidity of triacetylene, C6H2, and the electron affinity of the C6H. radical, Chem. Phys. Lett., 1994, 229, 4-5, 429, https://doi.org/10.1016/0009-2614(94)01075-7 . [all data]


Notes

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