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Methanimine


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
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to CH3N+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)852.9kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity818.7kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.97PEBock and Dammel, 1987LBLHLM
9.88 ± 0.07PITarasenko, Tishenkov, et al., 1986LBLHLM
~10.0PEPeel and Willett, 1975LLK
10.7PEBock and Dammel, 1987Vertical value; LBLHLM

De-protonation reactions

CH2N- + Hydrogen cation = Methanimine

By formula: CH2N- + H+ = CH3N

Quantity Value Units Method Reference Comment
Deltar1625. ± 21.kJ/molG+TSKass and DePuy, 1985gas phase; B
Quantity Value Units Method Reference Comment
Deltar1594. ± 21.kJ/molIMRBKass and DePuy, 1985gas phase; B

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]

Bock and Dammel, 1987
Bock, H.; Dammel, R., Methanimine RR"C=NR": Darstellung und photoelektronen-spektren, J. Am. Chem. Soc., 1987, 120, 1961. [all data]

Tarasenko, Tishenkov, et al., 1986
Tarasenko, N.A.; Tishenkov, A.A.; Zaikin, V.G.; Volkova, V.V.; Gusel'nikov, L.E., Adiabatic ionization energy of methylenimine, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1986, 10, 2196. [all data]

Peel and Willett, 1975
Peel, J.B.; Willett, G.D., Photoelectron spectrum of methylenimine by spectrum stripping, J. Chem. Soc. Faraday Trans. 2, 1975, 71, 1799. [all data]

Kass and DePuy, 1985
Kass, S.R.; DePuy, C.H., Gas phase ion chemistry of azides. The generation of CH=N- and CH2=NCH2-, J. Org. Chem., 1985, 50, 2874. [all data]


Notes

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