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Ethylenediamine

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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:
MM - Michael M. Meot-Ner (Mautner)
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

Quantity Value Units Method Reference Comment
Proton affinity (review)227.4kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity218.1kcal/molN/AHunter and Lias, 1998HL

Proton affinity at 298K

Proton affinity (kcal/mol) Reference Comment
227.3 ± 1.Hahn and Wesdemiotis, 2003MM
225.1Wang, Chu, et al., 1999KM results obtained from CID of complexes with secondary amines at E(cm) = 0 eV, extrapolated from CID at E(cm) = 0.8, 1.5, 2.0 eV; MM
226.6Wang, Chu, et al., 1999KM results obtained from CID of complexes with secondary amines using Fenselau/Wesdemiotis correction; MM

Ionization energy determinations

IE (eV) Method Reference Comment
8.6PEKimura, Katsumata, et al., 1981LLK
9.25PEKimura, Katsumata, et al., 1981LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH4N+9.56CH2NH2EIBurkey, Castelhano, et al., 1983LBLHLM

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]

Hahn and Wesdemiotis, 2003
Hahn, I.S.; Wesdemiotis, C., Protonation Thermochemistry of beta-Alanine. An Evaluation of Proton Affinities and Entropies Determined by the Extended Kinetic Method, Int. J. Mass Spectrometry, 2003, 222, 465. [all data]

Wang, Chu, et al., 1999
Wang, Z.; Chu, I.K.; Rodriquez, C.F.; Hopkinson, A.C.; Siu, K.W.M., «alpha»,«omega»-Diaminoalkanes as models for bases that dicoordinate the proton: An evaluation of the kinetic method for estimating their proton affinities, J. Phys. Chem. A., 1999, 103, 8700. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Burkey, Castelhano, et al., 1983
Burkey, T.J.; Castelhano, A.L.; Griller, D.; Lossing, F.P., Heats of formation and ionization potentials of some «alpha»-aminoalkyl radicals, J. Am. Chem. Soc., 1983, 105, 4701. [all data]


Notes

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