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p-Benzoquinone 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
Deltafgas-302.3 ± 3.6kJ/molR-EASchiedt and Weinkauf, 1999Neutral T1 state is 2.3 eV up: Siegert, Vogeler, et al., 20112

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

p-Benzoquinone anion + Methyl Alcohol = (p-Benzoquinone anion bullet Methyl Alcohol)

By formula: C6H4O2- + CH4O = (C6H4O2- bullet CH4O)

Quantity Value Units Method Reference Comment
Deltar23. ± 6.7kJ/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
23.343.PHPMSChowdhury, 1987gas phase; M

p-Benzoquinone anion + Dimethyl Sulfoxide = (p-Benzoquinone anion bullet Dimethyl Sulfoxide)

By formula: C6H4O2- + C2H6OS = (C6H4O2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar26. ± 6.7kJ/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
26.343.PHPMSChowdhury, 1987gas phase; M

p-Benzoquinone anion + Formamide, N,N-dimethyl- = (p-Benzoquinone anion bullet Formamide, N,N-dimethyl-)

By formula: C6H4O2- + C3H7NO = (C6H4O2- bullet C3H7NO)

Quantity Value Units Method Reference Comment
Deltar18. ± 6.7kJ/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
18.343.PHPMSChowdhury, 1987gas phase; M

p-Benzoquinone anion + Acetonitrile = (p-Benzoquinone anion bullet Acetonitrile)

By formula: C6H4O2- + C2H3N = (C6H4O2- bullet C2H3N)

Quantity Value Units Method Reference Comment
Deltar20. ± 6.7kJ/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
20.343.PHPMSChowdhury, 1987gas phase; M

p-Benzoquinone anion + Silicon tetrafluoride = C6H4F4O2Si-

By formula: C6H4O2- + F4Si = C6H4F4O2Si-

Quantity Value Units Method Reference Comment
Deltar100. ± 8.4kJ/molTDAsWilliamson, Knighton, et al., 2001gas phase; at 150 C; B
Quantity Value Units Method Reference Comment
Deltar55.2 ± 2.5kJ/molTDAsWilliamson, Knighton, et al., 2001gas phase; at 150 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.

Schiedt and Weinkauf, 1999
Schiedt, J.; Weinkauf, R., Resonant Photodetachment via Shape and Feshbach Resonances: p-Benzoquinone Anions as a Model System, J. Chem. Phys., 1999, 110, 1, 304, https://doi.org/10.1063/1.478066 . [all data]

Siegert, Vogeler, et al., 2011
Siegert, S.; Vogeler, F.; Marian, C.M.; Weinkauf, R., Throwing light on dark states of alpha-oligothiophenes of chain lengths 2 to 6: radical anion photoelectron spectroscopy and excited-state theory, Phys. Chem. Chem. Phys., 2011, 13, 21, 10350-10363, https://doi.org/10.1039/c0cp02712j . [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]

Williamson, Knighton, et al., 2001
Williamson, D.H.; Knighton, W.B.; Grimsrud, E.P., Lewis acid-base interactions of SiF4 with molecular anions formed by electron capture reactions, Int. J. Mass Spectrom., 2001, 206, 1-2, 53-61, https://doi.org/10.1016/S1387-3806(00)00388-2 . [all data]


Notes

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