L-Tryptophan anion


Gas phase ion energetics data

Go To: Top, Ion clustering data, References, Notes

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
3.90 ± 0.19D-EAO'Hair, Bowie, et al., 1992 

Protonation reactions

L-Tryptophan anion + Hydrogen cation = Tryptophan

By formula: C11H11N2O2- + H+ = C11H12N2O2

Quantity Value Units Method Reference Comment
Δr339.6 ± 2.2kcal/molCIDCJones, Bernier, et al., 2007gas phase
Δr336.7 ± 3.1kcal/molG+TSO'Hair, Bowie, et al., 1992gas phase
Quantity Value Units Method Reference Comment
Δr329.9 ± 3.0kcal/molCIDCO'Hair, Bowie, et al., 1992gas phase

Ion clustering data

Go To: Top, Gas phase ion energetics data, References, Notes

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

L-Tryptophan anion + Water = C11H13N2O3-

By formula: C11H11N2O2- + H2O = C11H13N2O3-

Quantity Value Units Method Reference Comment
Δr14.80 ± 0.50kcal/molN/AWincel, 2008gas phase
Quantity Value Units Method Reference Comment
Δr6.90 ± 0.90kcal/molTDAsWincel, 2008gas phase

References

Go To: Top, 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.

O'Hair, Bowie, et al., 1992
O'Hair, R.J.; Bowie, J.H.; Gronert, S., Gas Phase Acidity of the alpha-Amino Acids, Int. J. Mass Spectrom. Ion Proc., 1992, 117, 23, https://doi.org/10.1016/0168-1176(92)80083-D . [all data]

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]

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

Go To: Top, Gas phase ion energetics data, Ion clustering data, References