Alanine 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C3H6NO2- + Hydrogen cation = Alanine

By formula: C3H6NO2- + H+ = C3H7NO2

Quantity Value Units Method Reference Comment
Δr1430. ± 7.9kJ/molCIDCJones, Bernier, et al., 2007gas phase
Δr1425. ± 8.8kJ/molG+TSLocke and McIver, 1983gas phase
Quantity Value Units Method Reference Comment
Δr1401. ± 8.4kJ/molH-TSJones, Bernier, et al., 2007gas phase
Δr1396. ± 8.4kJ/molIMRELocke and McIver, 1983gas phase

C3H6NO2- + Water = C3H8NO3-

By formula: C3H6NO2- + H2O = C3H8NO3-

Quantity Value Units Method Reference Comment
Δr64.0 ± 1.7kJ/molN/AWincel, 2008gas phase
Quantity Value Units Method Reference Comment
Δr32.6 ± 3.3kJ/molTDAsWincel, 2008gas 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
3.68 ± 0.15D-EAJones, Bernier, et al., 2007 

Protonation reactions

C3H6NO2- + Hydrogen cation = Alanine

By formula: C3H6NO2- + H+ = C3H7NO2

Quantity Value Units Method Reference Comment
Δr1430. ± 7.9kJ/molCIDCJones, Bernier, et al., 2007gas phase
Δr1425. ± 8.8kJ/molG+TSLocke and McIver, 1983gas phase
Quantity Value Units Method Reference Comment
Δr1401. ± 8.4kJ/molH-TSJones, Bernier, et al., 2007gas phase
Δr1396. ± 8.4kJ/molIMRELocke and McIver, 1983gas phase

Ion clustering 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

C3H6NO2- + Water = C3H8NO3-

By formula: C3H6NO2- + H2O = C3H8NO3-

Quantity Value Units Method Reference Comment
Δr64.0 ± 1.7kJ/molN/AWincel, 2008gas phase
Quantity Value Units Method Reference Comment
Δr32.6 ± 3.3kJ/molTDAsWincel, 2008gas phase

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Jones, Bernier, et al., 2007
Jones, C.M.; Bernier, M.; Carson, E.; Colyer, K.E.; Metz, R.; Pawlow, A.; Wischow, E.D.; Webb, I.; Andriole, E.J.; Poutsma, J.C., Gas-phase Acities of the 20 Protein Amino Acids, Int. J. Mass Spectrom., 2007, 267, 1-3, 54-62, https://doi.org/10.1016/j.ijms.2007.02.018 . [all data]

Locke and McIver, 1983
Locke, M.J.; McIver, R.T., Jr., Effect of Solvation on the Acid/Base Properties of Glycine, J. Am. Chem. Soc., 1983, 105, 4226. [all data]

Wincel, 2008
Wincel, H., Hydration energies of deprotonated amino acids from gas phase equilibria measurements, J. Am. Soc. Mass Spectrom., 2008, 19, 8, 1091-1097, https://doi.org/10.1016/j.jasms.2008.05.014 . [all data]


Notes

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