DL-Phenylalanine


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:
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
IE (evaluated)8.4eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
8.5PECampbell, Marzluff, et al., 1994LL
8.4PECannington and Ham, 1983LBLHLM
≤8.4PIAkopyan and Loginov, 1967RDSH
8.9PECampbell, Marzluff, et al., 1994Vertical value; LL
9.4PECannington and Ham, 1983Vertical value; LBLHLM

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+) + DL-Phenylalanine = (Sodium ion (1+) • DL-Phenylalanine)

By formula: Na+ + C9H11NO2 = (Na+ • C9H11NO2)

Quantity Value Units Method Reference Comment
Δr198. ± 13.kJ/molIMREGapeev and Dunbar, 2003Anchor glycine=38.5+-2.5
Δr198.kJ/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.

Campbell, Marzluff, et al., 1994
Campbell, S.; Marzluff, E.M.; Rodgers, M.T.; Beauchamp, J.L.; Rempe, M.E.; Schwinck, K.F.; Lichtenberger, D.L., Proton affinities and photoelectron spectra of phenylalanine and N-methyl and N,N-dimethylphenylalanine. Correlation of lone pair ionization energies with proton affinities and implications for N-methylation as a method to effect site specific protonation of peptides, J. Am. Chem. Soc., 1994, 116, 5257. [all data]

Cannington and Ham, 1983
Cannington, P.H.; Ham, N.S., He(I) and He(II) photoelectron spectra of glycine and related molecules, J. Electron Spectrosc. Relat. Phenom., 1983, 32, 139. [all data]

Akopyan and Loginov, 1967
Akopyan, M.E.; Loginov, Yy.V., Mass-spectrometric study of the phoionization of free α-aminoacids, High Energy Chem., 1967, 1, 83, In original 97. [all data]

Gapeev and Dunbar, 2003
Gapeev, A.; Dunbar, R.C., Na+ Affinities of Gas-Phase Amino Acids by Ligand Exchange Equilibrium, Int. J. Mass Spectrom., 2003, 228, 2-3, 825, https://doi.org/10.1016/S1387-3806(03)00242-2 . [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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