Methanimine

• Formula: CH₃N
• Molecular weight: 29.0412
• IUPAC Standard InChI: InChI=1S/CH3N/c1-2/h2H,1H2 Copy

  
• IUPAC Standard InChIKey: WDWDWGRYHDPSDS-UHFFFAOYSA-N Copy
• CAS Registry Number: 2053-29-4
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Vibrational and/or electronic energy levels
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
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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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

CH₂N^- +  =

By formula: CH₂N^- + H⁺ = CH₃N

(CAS Reg. No. 54448-39-4 • 4294967295) +  = CAS Reg. No. 54448-39-4

By formula: (CAS Reg. No. 54448-39-4 • 4294967295CH₃N) + CH₃N = CAS Reg. No. 54448-39-4

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)

Ionization energy determinations

De-protonation reactions

CH₂N^- +  =

By formula: CH₂N^- + H⁺ = CH₃N

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.

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]

MacKay, Hemsworth, et al., 1976
MacKay, G.J.; Hemsworth, R.S.; Bohme, D.K., Absolute gas-phase acidities of CH₃NH₂, C₂H₅NH₂, (CH₃)₂NH, and (CH₃)₃N, Can. J. Chem., 1976, 54, 1624. [all data]

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]

Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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