MeCH(OH)CO2 anion


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

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

(MeCH(OH)CO2 anion • Water) + Water = (MeCH(OH)CO2 anion • 2Water)

By formula: (C3H5O3- • H2O) + H2O = (C3H5O3- • 2H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr12.3 ± 1.5kcal/molTDAsBlades, Klassen, et al., 1995gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B
Quantity Value Units Method Reference Comment
Δr5.30 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M

MeCH(OH)CO2 anion + Water = (MeCH(OH)CO2 anion • Water)

By formula: C3H5O3- + H2O = (C3H5O3- • H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr14.7 ± 1.5kcal/molTDAsBlades, Klassen, et al., 1995gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B
Quantity Value Units Method Reference Comment
Δr7.70 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M

MeCH(OH)CO2 anion + Hydrogen cation = dl-lactic acid

By formula: C3H5O3- + H+ = C3H6O3

Quantity Value Units Method Reference Comment
Δr337.6 ± 2.2kcal/molG+TSCaldwell, Renneboog, et al., 1989gas phase; May have large entropy correction from cyclization; see HOCH2CO2-; B
Quantity Value Units Method Reference Comment
Δr330.6 ± 2.0kcal/molIMRECaldwell, Renneboog, et al., 1989gas phase; May have large entropy correction from cyclization; see HOCH2CO2-; B

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

EAneutral (eV) Method Reference Comment
3.86 ± 0.16D-EACaldwell, Renneboog, et al., 1989May have large entropy correction from cyclization; see HOCH2CO2-

Protonation reactions

MeCH(OH)CO2 anion + Hydrogen cation = dl-lactic acid

By formula: C3H5O3- + H+ = C3H6O3

Quantity Value Units Method Reference Comment
Δr337.6 ± 2.2kcal/molG+TSCaldwell, Renneboog, et al., 1989gas phase; May have large entropy correction from cyclization; see HOCH2CO2-
Quantity Value Units Method Reference Comment
Δr330.6 ± 2.0kcal/molIMRECaldwell, Renneboog, et al., 1989gas phase; May have large entropy correction from cyclization; see HOCH2CO2-

Ion clustering 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

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

MeCH(OH)CO2 anion + Water = (MeCH(OH)CO2 anion • Water)

By formula: C3H5O3- + H2O = (C3H5O3- • H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr14.7 ± 1.5kcal/molTDAsBlades, Klassen, et al., 1995gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B
Quantity Value Units Method Reference Comment
Δr7.70 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M

(MeCH(OH)CO2 anion • Water) + Water = (MeCH(OH)CO2 anion • 2Water)

By formula: (C3H5O3- • H2O) + H2O = (C3H5O3- • 2H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr12.3 ± 1.5kcal/molTDAsBlades, Klassen, et al., 1995gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B
Quantity Value Units Method Reference Comment
Δr5.30 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes

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]

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]


Notes

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