Maleic anhydride anion


Gas phase 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

Quantity Value Units Method Reference Comment
Δfgas-128.4 ± 2.3kcal/molR-EAPaul and Kebarle, 1989ΔGea(423 K) = -32.8±1 kcal/mol, ΔS = -1±3 eu.

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

C4H2O3- + Methyl Alcohol = (C4H2O3- • Methyl Alcohol)

By formula: C4H2O3- + CH4O = (C4H2O3- • CH4O)

Quantity Value Units Method Reference Comment
Δr4.7 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
4.7343.PHPMSChowdhury, 1987gas phase; M

C4H2O3- + Dimethyl Sulfoxide = (C4H2O3- • Dimethyl Sulfoxide)

By formula: C4H2O3- + C2H6OS = (C4H2O3- • C2H6OS)

Quantity Value Units Method Reference Comment
Δr6.7 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.7343.PHPMSChowdhury, 1987gas phase; M

C4H2O3- + Acetonitrile = (C4H2O3- • Acetonitrile)

By formula: C4H2O3- + C2H3N = (C4H2O3- • C2H3N)

Quantity Value Units Method Reference Comment
Δr5.5 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

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.

Paul and Kebarle, 1989
Paul, G.; Kebarle, P., Electron Affinities of Cyclic Unsaturated Dicarbonyls: Maleic Anhydrides, Maleimides, and Cyclopentendione, J. Am. Chem. Soc., 1989, 111, 2, 464, https://doi.org/10.1021/ja00184a009 . [all data]

Chowdhury, Grimsrud, et al., 1987
Chowdhury, S.; Grimsrud, E.P.; Kebarle, P., Bonding of Charged Delocalized Anions to Protic and Dipolar Aprotic Solvent Molecules, J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021 . [all data]

Chowdhury, 1987
Chowdhury, S. Grimsrud, Bonding of Charge Delocalized Anions to Protic and Dipolar Aprotic Solvents, J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021 . [all data]


Notes

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