CH2=C(OH)O Anion - The NIST WebBook

CH2=C(OH)O anion

• Formula: C2H3O2-
• Molecular weight: 59.0446
• Information on this page:
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
• Options:
  • Switch to calorie-based units

Reaction thermochemistry data

Go To: Top, References, Notes

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

C2H3O2- + =

By formula: C2H3O2- + H+ = C2H4O2

Quantity	Value	Units	Method	Reference	Comment
ΔrH°	1540. ± 13.	kJ/mol	G+TS	Grabowski and Cheng, 1989	gas phase
ΔrH°	1539. ± 19.	kJ/mol	EIAE	Muftakhov, Vasil'ev, et al., 1999	gas phase
Quantity	Value	Units	Method	Reference	Comment
ΔrG°	1511. ± 13.	kJ/mol	IMRB	Grabowski and Cheng, 1989	gas phase

References

Go To: Top, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Grabowski and Cheng, 1989 Grabowski, J.J.; Cheng, X., Gas-Phase Formation of the Enolate Monoanion of Acetic Acid by Proton Abstraction, J. Am. Chem. Soc., 1989, 111, 8, 3106, https://doi.org/10.1021/ja00190a078 . [all data]

Muftakhov, Vasil'ev, et al., 1999 Muftakhov, M.V.; Vasil'ev, Y.V.; Mazunov, V.A., Determination of electron affinity of carbonyl radicals by means of negative ion mass spectrometry, Rapid Commun. Mass Spectrom., 1999, 13, 12, 1104-1108, https://doi.org/10.1002/(SICI)1097-0231(19990630)13:12<1104::AID-RCM619>3.0.CO;2-C . [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
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.