L-Glutamine

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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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess

Quantity Value Units Method Reference Comment
Proton affinity (review)224.1kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity215.kcal/molN/AHunter and Lias, 1998HL

De-protonation reactions

C5H9N2O3- + Hydrogen cation = L-Glutamine

By formula: C5H9N2O3- + H+ = C5H10N2O3

Quantity Value Units Method Reference Comment
Δr331.0 ± 2.6kcal/molCIDCJones, Bernier, et al., 2007gas phase; B
Δr331.6 ± 3.1kcal/molG+TSO'Hair, Bowie, et al., 1992gas phase; B
Quantity Value Units Method Reference Comment
Δr324.8 ± 3.0kcal/molCIDCO'Hair, Bowie, et al., 1992gas phase; B

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: Robert C. Dunbar

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

Sodium ion (1+) + L-Glutamine = (Sodium ion (1+) • L-Glutamine)

By formula: Na+ + C5H10N2O3 = (Na+ • C5H10N2O3)

Quantity Value Units Method Reference Comment
Δr50.6kcal/molCIDCKish, Ohanessian, et al., 2003Anchor alanine=39.89

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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [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]

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]

Kish, Ohanessian, et al., 2003
Kish, M.M.; Ohanessian, G.; Wesdemiotis, C., The Na+ affinities of a-amino acids: side-chain substituent effects, Int. J. Mass Spectrom., 2003, 227, 3, 509, https://doi.org/10.1016/S1387-3806(03)00082-4 . [all data]


Notes

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