O2C(CH2)6CO2 dianion


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

C8H12O4-2 + Water = (C8H12O4-2 • Water)

By formula: C8H12O4-2 + H2O = (C8H12O4-2 • H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr6.7 ± 4.2kcal/molN/ADing, Wang, et al., 1998gas phase; Affinity is EA difference from next lower solvated ion.; B
Quantity Value Units Method Reference Comment
Δr5.4kcal/molES/HPMSBlades, Klassen, et al., 1995gas phase; M

(C8H12O4-2 • 2Water) + Water = (C8H12O4-2 • 3Water)

By formula: (C8H12O4-2 • 2H2O) + H2O = (C8H12O4-2 • 3H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr7.80 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; B,M

(C8H12O4-2 • 3Water) + Water = (C8H12O4-2 • 4Water)

By formula: (C8H12O4-2 • 3H2O) + H2O = (C8H12O4-2 • 4H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr7.10 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; B,M

(C8H12O4-2 • 4Water) + Water = (C8H12O4-2 • 5Water)

By formula: (C8H12O4-2 • 4H2O) + H2O = (C8H12O4-2 • 5H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr6.10 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; B,M

(C8H12O4-2 • 5Water) + Water = (C8H12O4-2 • 6Water)

By formula: (C8H12O4-2 • 5H2O) + H2O = (C8H12O4-2 • 6H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr5.50 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; B,M

(C8H12O4-2 • Water) + Water = (C8H12O4-2 • 2Water)

By formula: (C8H12O4-2 • H2O) + H2O = (C8H12O4-2 • 2H2O)

Quantity Value Units Method Reference Comment
Δr14.1 ± 4.2kcal/molN/ADing, Wang, et al., 1998gas phase; Affinity is EA difference from next lower solvated ion.; B

C8H12O4-2 + Hydrogen cation = C8H13O4-2

By formula: C8H12O4-2 + H+ = C8H13O4-2

Quantity Value Units Method Reference Comment
Δr390.9 ± 3.2kcal/molD-EAYang, Fu, et al., 2004gas phase; 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
1.550 ± 0.050LPESYang, Fu, et al., 2004 
1.520 ± 0.090LPESDing, Wang, et al., 1998 

Protonation reactions

C8H12O4-2 + Hydrogen cation = C8H13O4-2

By formula: C8H12O4-2 + H+ = C8H13O4-2

Quantity Value Units Method Reference Comment
Δr390.9 ± 3.2kcal/molD-EAYang, Fu, et al., 2004gas phase

Ion clustering data

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

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

C8H12O4-2 + Hydrogen cation = C8H13O4-2

By formula: C8H12O4-2 + H+ = C8H13O4-2

Quantity Value Units Method Reference Comment
Δr390.9 ± 3.2kcal/molD-EAYang, Fu, et al., 2004gas phase; B

C8H12O4-2 + Water = (C8H12O4-2 • Water)

By formula: C8H12O4-2 + H2O = (C8H12O4-2 • H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr6.7 ± 4.2kcal/molN/ADing, Wang, et al., 1998gas phase; Affinity is EA difference from next lower solvated ion.; B
Quantity Value Units Method Reference Comment
Δr5.4kcal/molES/HPMSBlades, Klassen, et al., 1995gas phase; M

(C8H12O4-2 • Water) + Water = (C8H12O4-2 • 2Water)

By formula: (C8H12O4-2 • H2O) + H2O = (C8H12O4-2 • 2H2O)

Quantity Value Units Method Reference Comment
Δr14.1 ± 4.2kcal/molN/ADing, Wang, et al., 1998gas phase; Affinity is EA difference from next lower solvated ion.; B

(C8H12O4-2 • 2Water) + Water = (C8H12O4-2 • 3Water)

By formula: (C8H12O4-2 • 2H2O) + H2O = (C8H12O4-2 • 3H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr7.80 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; B,M

(C8H12O4-2 • 3Water) + Water = (C8H12O4-2 • 4Water)

By formula: (C8H12O4-2 • 3H2O) + H2O = (C8H12O4-2 • 4H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr7.10 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; B,M

(C8H12O4-2 • 4Water) + Water = (C8H12O4-2 • 5Water)

By formula: (C8H12O4-2 • 4H2O) + H2O = (C8H12O4-2 • 5H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr6.10 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; B,M

(C8H12O4-2 • 5Water) + Water = (C8H12O4-2 • 6Water)

By formula: (C8H12O4-2 • 5H2O) + H2O = (C8H12O4-2 • 6H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr5.50 ± 0.30kcal/molTDAsBlades, Klassen, et al., 1995gas phase; 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.

Ding, Wang, et al., 1998
Ding, C.F.; Wang, X.B.; Wang, L.S., Photoelectron spectroscopy of doubly charged anions: Intramolecular Coulomb repulsion and solvent stabilization, J. Phys. Chem. A, 1998, 102, 45, 8633-8636, https://doi.org/10.1021/jp982698x . [all data]

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]

Yang, Fu, et al., 2004
Yang, X.; Fu, Y.J.; Wang, X.B.; Slavicek, P.; Mucha, M.; Jungwirth, P.; Wang, L.S., Solvent-mediated folding of a doubly charged anion, J. Am. Chem. Soc., 2004, 126, 3, 876-883, https://doi.org/10.1021/ja038108c . [all data]


Notes

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