H2O..CO3 radical anion

Formula: CH₂O₄^-
Molecular weight: 78.0247
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Reaction thermochemistry data

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Individual Reactions

CO₃^- + = CH₂O₄^-

By formula: CO₃^- + H₂O = CH₂O₄^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	14.10 ± 0.20	kcal/mol	TDAs	Keesee, Lee, et al., 1979	gas phase
Δ_rH°	11.5 ± 1.0	kcal/mol	IMRE	Fehsenfeld and Ferguson, 1974	gas phase
Δ_rH°	<38.50	kcal/mol	PDis	Smith, Lee, et al., 1978	gas phase
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	6.60 ± 0.40	kcal/mol	TDAs	Keesee, Lee, et al., 1979	gas phase
Δ_rG°	6.70 ± 0.40	kcal/mol	IMRE	Fehsenfeld and Ferguson, 1974	gas phase

CH₂O₄^- + 2 = CH₄O₅^-

By formula: CH₂O₄^- + 2H₂O = CH₄O₅^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13.60 ± 0.50	kcal/mol	TDAs	Keesee, Lee, et al., 1979	gas phase
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	4.8 ± 1.0	kcal/mol	TDAs	Keesee, Lee, et al., 1979	gas phase

References

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Keesee, Lee, et al., 1979
Keesee, R.G.; Lee, N.; Castleman Jr., Properties of Clusters in the Gas Phase. 3. Hydration Complexes of CO₃^- and HCO₃^-, J. Am. Chem. Soc., 1979, 101, 10, 2599, https://doi.org/10.1021/ja00504a015 . [all data]

Fehsenfeld and Ferguson, 1974
Fehsenfeld, F.C.; Ferguson, E.E., Laboratory studies of negative ion reactions with atmospheric trace constituents, J. Chem. Phys., 1974, 61, 3181. [all data]

Smith, Lee, et al., 1978
Smith, G.P.; Lee, L.C.; Cosby, P.C.; Peterson, J.R.; Moseley, J.T., Photodissociation and photodetachment of molecular negative ions. V. Atmospheric ions from 7000 to 8400 A), J. Chem. Phys., 1978, 68, 3818. [all data]

Notes

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