N,N-Dimethylacetamide

• Formula: C₄H₉NO
• Molecular weight: 87.1204
• IUPAC Standard InChI: InChI=1S/C4H9NO/c1-4(6)5(2)3/h1-3H3 Copy

  
• IUPAC Standard InChIKey: FXHOOIRPVKKKFG-UHFFFAOYSA-N Copy
• CAS Registry Number: 127-19-5
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Acetamide, N,N-dimethyl-; Acetdimethylamide; Dimethylacetamide; Dimethylamide acetate; DMA; CH3CON(CH3)2; Acetic acid dimethylamide; Acetyl dimethylamine; CBC 510337; DMAc; Hallucinogen; N,N-Dimethylethanamide; NSC 3138; SK 7176; U-5954; Dimethylamid kyseliny octove
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• Information on this page:
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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  • 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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
RCD - Robert C. Dunbar
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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

C₃H₁₀N⁺ +  = (C₃H₁₀N⁺ • )

By formula: C₃H₁₀N⁺ + C₄H₉NO = (C₃H₁₀N⁺ • C₄H₉NO)

Bond type: Hydrogen bonds of the type NH+-O between organics

C₄H₈NO^- +  =

By formula: C₄H₈NO^- + H⁺ = C₄H₉NO

C₄H₁₀NO⁺ +  = (C₄H₁₀NO⁺ • )

By formula: C₄H₁₀NO⁺ + C₄H₉NO = (C₄H₁₀NO⁺ • C₄H₉NO)

Bond type: Hydrogen bonds of the type OH-O between organics

 +  = ( • )

By formula: K⁺ + C₄H₉NO = (K⁺ • C₄H₉NO)

( • 2) +  = ( • 3)

By formula: (K⁺ • 2C₄H₉NO) + C₄H₉NO = (K⁺ • 3C₄H₉NO)

( • ) +  = ( • 2)

By formula: (K⁺ • C₄H₉NO) + C₄H₉NO = (K⁺ • 2C₄H₉NO)

=

By formula: C₄H₉NO = C₄H₉NO

 +  = ( • )

By formula: Na⁺ + C₄H₉NO = (Na⁺ • C₄H₉NO)

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.

Meot-Ner, 1984
Meot-Ner, (Mautner)M., The Ionic Hydrogen Bond and Ion Solvation. 1. -NH+ O-, -NH+ N- and -OH+ O- Bonds. Correlations with Proton Affinity. Deviations Due to Structural Effects, J. Am. Chem. Soc., 1984, 106, 5, 1257, https://doi.org/10.1021/ja00317a015 . [all data]

Meot-Ner, 1984, 2
Meot-Ner, (Mautner), The Ionic Hydrogen Bond. 4. Intramolecular and Multiple Bonds. Proton Affinities, Hydration and Complexes of Amides and Amino Acid Derivatives, J. Am. Chem. Soc., 1984, 106, 2, 278, https://doi.org/10.1021/ja00314a003 . [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Klassen, Anderson, et al., 1996
Klassen, J.S.; Anderson, S.G.; Blades, A.T.; Kebarle, P., Reaction Enthalpies for M+L = M+ + L, Where M+ = Na+ and K+ and L = Acetamide, N-Methylacetamide, N,N-Dimethylacetamide, Glycine, and Glycylglycine, from Determinations of the Collision-Induced Dissociation Thresholds, J. Phys. Chem., 1996, 100, 33, 14218, https://doi.org/10.1021/jp9608382 . [all data]

Sunner, 1984
Sunner, J. Kebarle, Ion - Solvent Molecule Interactions in the Gas Phase. The Potassium Ion and Me2SO, DMA, DMF, and Acetone, J. Am. Chem. Soc., 1984, 106, 21, 6135, https://doi.org/10.1021/ja00333a002 . [all data]

Beak, Lee, et al., 1978
Beak, P.; Lee, J.-K.; Zeigler, J.M., Equilibration studies: amide-imidate and thioamide-thioimidate functions, J. Org. Chem., 1978, 43, 1536-1538. [all data]

Notes

Go To: Top, Reaction thermochemistry data, References

• Symbols used in this document:
  

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

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