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CN 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

Protonation reactions

CN- + Hydrogen cation = Hydrogen cyanide

By formula: CN- + H+ = CHN

Quantity Value Units Method Reference Comment
Deltar349.8 ± 1.0kcal/molCIDTAkin and Ervin, 2006gas phase
Deltar350.50 ± 0.17kcal/molD-EABradforth, Kim, et al., 1993gas phase
Deltar351.1 ± 2.1kcal/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Deltar342.5 ± 1.1kcal/molH-TSAkin and Ervin, 2006gas phase
Deltar343.17 ± 0.27kcal/molH-TSBradforth, Kim, et al., 1993gas phase
Deltar343.8 ± 2.0kcal/molIMREBartmess, Scott, et al., 1979gas 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.

Akin and Ervin, 2006
Akin, F.A.; Ervin, K.M., Collision-induced dissociation of HS-(HCN): Unsymmetrical hydrogen bonding in a proton-bound dimer anion, J. Phys. Chem. A, 2006, 110, 4, 1342-1349, https://doi.org/10.1021/jp0540454 . [all data]

Bradforth, Kim, et al., 1993
Bradforth, S.E.; Kim, E.H.; Arnold, D.W.; Neumark, D.M., Photoelectron Spectroscopy of CN-, NCO-, and NCS-, J. Chem. Phys., 1993, 98, 2, 800, https://doi.org/10.1063/1.464244 . [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]


Notes

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