MeCH=NO2 anion

• Formula: C₂H₄NO₂^-
• Molecular weight: 74.0592
• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Ion clustering data
• Options:
  • Switch to calorie-based units

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

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Individual Reactions

C₂H₄NO₂^- +  =

By formula: C₂H₄NO₂^- + H⁺ = C₂H₅NO₂

C₂H₄NO₂^- +  = C₄H₉N₂O₄^-

By formula: C₂H₄NO₂^- + C₂H₅NO₂ = C₄H₉N₂O₄^-

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 compiled by: John E. Bartmess

Electron affinity of neutral species

Protonation reactions

C₂H₄NO₂^- +  =

By formula: C₂H₄NO₂^- + H⁺ = C₂H₅NO₂

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.

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]

Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P., Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A), Can. J. Chem., 1978, 56, 1. [all data]

Wincel, 2004
Wincel, H., Gas-phase clustering reactions of NO2-, C2H3NO2-, C2H4NO2-C2H5NO2- and C2H5NO4- with C2H5NO2, Int. J. Mass Spectrom., 2004, 232, 2, 185-194, https://doi.org/10.1016/j.ijms.2004.01.003 . [all data]

Notes

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

• Symbols used in this document:
  

  EAneutral	Electron affinity of neutral species
  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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