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Oxalic acid

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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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LL - Sharon G. Lias and Joel F. Liebman

Ionization energy determinations

IE (eV) Method Reference Comment
11.20PEMcGlynn and Meeks, 1976Vertical value; LLK
11.20PEMeeks, Arnett, et al., 1975Vertical value; LLK
11.20PEArnett, Newkome, et al., 1974Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2O2+17.4 ± 0.1H2O+OEIChen and Holmes, 1994LL

De-protonation reactions

C2HO4- + Hydrogen cation = Oxalic acid

By formula: C2HO4- + H+ = C2H2O4

Quantity Value Units Method Reference Comment
Deltar1356. ± 8.4kJ/molCIDCKumar, Prabhakar, et al., 2005gas phase; B
Quantity Value Units Method Reference Comment
Deltar1323. ± 8.4kJ/molCIDCKumar, Prabhakar, et al., 2005gas phase; 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.

McGlynn and Meeks, 1976
McGlynn, S.P.; Meeks, J.L., Photoelectron spectra of carbonyls, carbonates, oxalates and esterification effects, J. Electron Spectrosc. Relat. Phenom., 1976, 8, 85. [all data]

Meeks, Arnett, et al., 1975
Meeks, J.L.; Arnett, J.F.; Larson, D.B.; McGlynn, S.P., Photoelectron spectroscopy of carbonyls. Urea, oxamide, oxalic acid and oxamic acid, J. Am. Chem. Soc., 1975, 97, 3905. [all data]

Arnett, Newkome, et al., 1974
Arnett, J.F.; Newkome, G.; Mattice, W.L.; McGlynn, S.P., Excited electronic states of the «alpha»-dicarbonyls, J. Am. Chem. Soc., 1974, 96, 4385. [all data]

Chen and Holmes, 1994
Chen, H.; Holmes, J.L., The generation of OC2O+ and OC2O and a study of ionized OC3O and C2O by tandem mass spectrometry, Int. J. Mass Spectrom. Ion Processes, 1994, 133, 111. [all data]

Kumar, Prabhakar, et al., 2005
Kumar, M.R.; Prabhakar, S.; Nagaveni, V.; Vairamani, M., Estimation of gas-phase acidities of a series of dicarboxylic acids by the kinetic method, Rapid Commun. Mass Spectrom., 2005, 19, 8, 1053-1057, https://doi.org/10.1002/rcm.1888 . [all data]


Notes

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