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L-Asparagine

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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
MM - Michael M. Meot-Ner (Mautner)

Quantity Value Units Method Reference Comment
Proton affinity (review)929.kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity891.5kJ/molN/AHunter and Lias, 1998HL

Proton affinity at 298K

Proton affinity (kJ/mol) Reference Comment
965.2 ± 5.2Bouchoux, Buisson, et al., 2004MM
937.6Bojesen and Breindahl, 1994PA increased by 2.0 kcal/mol for referencing values to Hunter and Lias, 1998; MM

Gas basicity at 298K

Gas basicity (review) (kJ/mol) Reference Comment
920.0 ± 5.6Bouchoux, Buisson, et al., 2004MM

Protonation entropy at 298K

Protonation entropy (J/mol*K) Reference Comment
-43. ± 7.Bouchoux, Buisson, et al., 2004MM

De-protonation reactions

C4H7N2O3- + Hydrogen cation = L-Asparagine

By formula: C4H7N2O3- + H+ = C4H8N2O3

Quantity Value Units Method Reference Comment
Deltar1385. ± 9.2kJ/molCIDCJones, Bernier, et al., 2007gas phase; B
Deltar1387. ± 13.kJ/molG+TSO'Hair, Bowie, et al., 1992gas phase; B
Quantity Value Units Method Reference Comment
Deltar1356. ± 9.6kJ/molH-TSJones, Bernier, et al., 2007gas phase; B
Deltar1359. ± 13.kJ/molCIDCO'Hair, Bowie, et al., 1992gas phase; B

References

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

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]

Bouchoux, Buisson, et al., 2004
Bouchoux, G.; Buisson, D.A.; Colas, C.; Sablier, M., Protonation thermochemistry of alpha-amino acids bearing a basic residue, European J. Mass Spectrom., 2004, 10, 977. [all data]

Bojesen and Breindahl, 1994
Bojesen, G.; Breindahl, T., On the Proton Affinity od Some Alpha-Amino Acids and the Theory of the Kinetic Method., J. Chem. Soc. Perkin 2, 1994, 1029. [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]


Notes

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