CH2=C(Me)O anion

Formula: C₃H₅O^-
Molecular weight: 57.0717
Information on this page:
Other data available:
- Reaction thermochemistry data
- Gas phase ion energetics data
Options:
- Switch to calorie-based units

Ion clustering data

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

C₃H₅O^- + = (C₃H₅O^- • )

By formula: C₃H₅O^- + C₂H₃N = (C₃H₅O^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	64.0 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	40. ± 8.4	kJ/mol	TDAs	Meot-ner, 1988	gas phase

C₃H₅O^- + = (C₃H₅O^- • )

By formula: C₃H₅O^- + C₃H₆O = (C₃H₅O^- • C₃H₆O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	>108.4	kJ/mol	IMRB	Sheldon and Bowie, 1983	gas phase; MeOH..F- + Me2CO ->
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	>82.42	kJ/mol	IMRB	Sheldon and Bowie, 1983	gas phase; MeOH..F- + Me2CO ->

C₃H₅O^- + = (C₃H₅O^- • )

By formula: C₃H₅O^- + C₃H₈O = (C₃H₅O^- • C₃H₈O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	90. ± 12.	kJ/mol	N/A	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	54.0 ± 8.4	kJ/mol	IMRE	Caldwell, Rozeboom, et al., 1984	gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale

C₃H₅O^- + = (C₃H₅O^- • )

By formula: C₃H₅O^- + H₂O = (C₃H₅O^- • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	66.1 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	41. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase

References

Go To: Top, Ion clustering data, Notes

Meot-ner, 1988
Meot-ner, M., The Ionic Hydrogen Bond and Solvation. 7. Interaction Energies of Carbanions with Solvent Molecules, J. Am. Chem. Soc., 1988, 110, 12, 3858, https://doi.org/10.1021/ja00220a022 . [all data]

Sheldon and Bowie, 1983
Sheldon, J.C.; Bowie, J.H., The Reactions of {F^-..HOMe} and {MeCO₂^-..HF} Negative Ions with Acetaldehyde and Acetone., Aust. J. Chem., 1983, 36, 2, 289, https://doi.org/10.1071/CH9830289 . [all data]

Caldwell, Rozeboom, et al., 1984
Caldwell, G.; Rozeboom, M.D.; Kiplinger, J.P.; Bartmess, J.E., Anion-alcohol hydrogen bond strengths in the gas phase, J. Am. Chem. Soc., 1984, 106, 4660. [all data]

Paul and Kebarle, 1990
Paul, G.J.C.; Kebarle, P., Thermodynamics of the Association Reactions OH- - H2O = HOHOH- and CH3O- - CH3OH = CH3OHOCH3- in the Gas Phase, J. Phys. Chem., 1990, 94, 12, 5184, https://doi.org/10.1021/j100375a076 . [all data]

Meot-ner and Sieck, 1986
Meot-ner, M.; Sieck, L.W., Relative acidities of water and methanol, and the stabilities of the dimer adducts, J. Phys. Chem., 1986, 90, 6687. [all data]

Notes

Go To: Top, Ion clustering data, References

Symbols used in this document:

Δ_rG° Free energy of reaction at standard conditions

Δ_rH° 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.

Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions