Glycine 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

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Individual Reactions

C2H4NO2- + Hydrogen cation = Glycine

By formula: C2H4NO2- + H+ = C2H5NO2

Quantity Value Units Method Reference Comment
Δr1434. ± 9.2kJ/molCIDCJones, Bernier, et al., 2007gas phase
Δr1429. ± 8.8kJ/molG+TSCaldwell, Renneboog, et al., 1989gas phase
Δr1433. ± 8.8kJ/molG+TSLocke and McIver, 1983gas phase
Δr1410. ± 5.9kJ/molEIAEMuftakhov, Vasil'ev, et al., 1999gas phase
Quantity Value Units Method Reference Comment
Δr1400. ± 8.4kJ/molIMRECaldwell, Renneboog, et al., 1989gas phase
Δr1404. ± 8.4kJ/molIMRELocke and McIver, 1983gas phase

C2H4NO2- + Water = C2H6NO3-

By formula: C2H4NO2- + H2O = C2H6NO3-

Quantity Value Units Method Reference Comment
Δr72.5 ± 2.1kJ/molTDAsNieckarz, Atkins, et al., 2008gas phase
Δr66.9 ± 1.3kJ/molN/AWincel, 2008gas phase
Quantity Value Units Method Reference Comment
Δr39. ± 4.2kJ/molTDAsNieckarz, Atkins, et al., 2008gas phase
Δr34.3 ± 1.7kJ/molTDAsWincel, 2008gas phase

C2H4NO2- + Ethanol = C4H10NO3-

By formula: C2H4NO2- + C2H6O = C4H10NO3-

Quantity Value Units Method Reference Comment
Δr73.5 ± 2.1kJ/molTDAsNieckarz, Atkins, et al., 2008gas phase
Quantity Value Units Method Reference Comment
Δr41. ± 4.2kJ/molTDAsNieckarz, Atkins, et al., 2008gas phase

C2H4NO2- + Methyl Alcohol = C3H8NO3-

By formula: C2H4NO2- + CH4O = C3H8NO3-

Quantity Value Units Method Reference Comment
Δr71.1 ± 2.1kJ/molTDAsNieckarz, Atkins, et al., 2008gas phase
Quantity Value Units Method Reference Comment
Δr40. ± 4.2kJ/molTDAsNieckarz, Atkins, et al., 2008gas phase

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry 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
3.69 ± 0.16D-EACaldwell, Renneboog, et al., 1989 
3.65 ± 0.16D-EALocke and McIver, 1983 

Protonation reactions

C2H4NO2- + Hydrogen cation = Glycine

By formula: C2H4NO2- + H+ = C2H5NO2

Quantity Value Units Method Reference Comment
Δr1434. ± 9.2kJ/molCIDCJones, Bernier, et al., 2007gas phase
Δr1429. ± 8.8kJ/molG+TSCaldwell, Renneboog, et al., 1989gas phase
Δr1433. ± 8.8kJ/molG+TSLocke and McIver, 1983gas phase
Δr1410. ± 5.9kJ/molEIAEMuftakhov, Vasil'ev, et al., 1999gas phase
Quantity Value Units Method Reference Comment
Δr1400. ± 8.4kJ/molIMRECaldwell, Renneboog, et al., 1989gas phase
Δr1404. ± 8.4kJ/molIMRELocke and McIver, 1983gas phase

References

Go To: Top, Reaction thermochemistry data, 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.

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]

Caldwell, Renneboog, et al., 1989
Caldwell, G.; Renneboog, R.; Kebarle, P., Gas Phase Acidities of Aliphatic Carboxylic Acids, Based on Measurements of Proton Transfer Equilibria, Can. J. Chem., 1989, 67, 4, 661, https://doi.org/10.1139/v89-092 . [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]

Muftakhov, Vasil'ev, et al., 1999
Muftakhov, M.V.; Vasil'ev, Y.V.; Mazunov, V.A., Determination of electron affinity of carbonyl radicals by means of negative ion mass spectrometry, Rapid Commun. Mass Spectrom., 1999, 13, 12, 1104-1108, https://doi.org/10.1002/(SICI)1097-0231(19990630)13:12<1104::AID-RCM619>3.0.CO;2-C . [all data]

Nieckarz, Atkins, et al., 2008
Nieckarz, R.J.; Atkins, C.G.; McMahon, T.B., Effects of Isomerization on the Measured Thermochemical Properties of Deprotonated Glycine/Protic-Solvent Clusters, Chemphyschem, 2008, 9, 18, 2816-2825, https://doi.org/10.1002/cphc.200800525 . [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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