EtCO2 anion

• Formula: C₃H₅O₂^-
• Molecular weight: 73.0711
• IUPAC Standard InChI: InChI=1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)/p-1 Copy

  
• IUPAC Standard InChIKey: XBDQKXXYIPTUBI-UHFFFAOYSA-M Copy
• CAS Registry Number: 72-03-7
• Chemical structure:
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• Information on this page:
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
  • Ion clustering data
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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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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Individual Reactions

( • 2) +  = ( • 3)

By formula: (C₃H₅O₂^- • 2H₂O) + H₂O = (C₃H₅O₂^- • 3H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

( • ) +  = ( • 2)

By formula: (C₃H₅O₂^- • H₂O) + H₂O = (C₃H₅O₂^- • 2H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

 +  = ( • )

By formula: C₃H₅O₂^- + H₂O = (C₃H₅O₂^- • H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

 +  =

By formula: C₃H₅O₂^- + H⁺ = C₃H₆O₂

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.

Blades, Klassen, et al., 1995
Blades, A.T.; Klassen, J.S.; Kebarle, P., Free Energies of Hydration in the Gas Phase on the Anions of Some Oxo Acids of C, N, S, P, Cl and I, J. Am. Chem. Soc., 1995, 117, 42, 10563, https://doi.org/10.1021/ja00147a019 . [all data]

Viidanoja, Reiner, et al., 2000
Viidanoja, J.; Reiner, T.; Kiendler, A.; Grimm, F.; Arnold, F., Laboratory investigations of negative ion molecule reactions of propionic, butyric, glyoxylic, pyruvic, and pinonic acids, Int. J. Mass Spectrom., 2000, 194, 1, 53-68, https://doi.org/10.1016/S1387-3806(99)00172-4 . [all data]

Caldwell, Renneboog, et al., 1989
Caldwell, G.; Renneboog, R.; Kebarle, P., Gas Phase Acidities of Aliphatic Carboxylic Acids, Based on Measurements of Proton Transfer Equilibria, Can. J. Chem., 1989, 67, 4, 661, https://doi.org/10.1139/v89-092 . [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]

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

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