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metaphosphoric acid


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 by: John E. Bartmess

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Individual Reactions

O3P- + Hydrogen cation = metaphosphoric acid

By formula: O3P- + H+ = HPO3

Quantity Value Units Method Reference Comment
Deltar1300. ± 18.kJ/molD-EAWang and Wang, 1999gas phase
Deltar1300. ± 11.kJ/molG+TSViggiano, Henchman, et al., 1992gas phase
Deltar1300. ± 15.kJ/molEndoViggiano, Morris, et al., 1991gas phase
Deltar<1323. ± 13.kJ/molG+TSHenchman, Viggiano, et al., 1985gas phase; The neutral thermochemistry appears to be in conflict with computational values
Quantity Value Units Method Reference Comment
Deltar1270. ± 18.kJ/molH-TSWang and Wang, 1999gas phase
Deltar1270. ± 10.kJ/molIMRBViggiano, Henchman, et al., 1992gas phase
Deltar<1293. ± 13.kJ/molIMRBHenchman, Viggiano, et al., 1985gas phase; The neutral thermochemistry appears to be in conflict with computational values

References

Go To: Top, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Wang and Wang, 1999
Wang, X.B.; Wang, L.S., Vibrationally resolved photoelectron spectroscopy of PO3- and the electronic structure of PO3, Chem. Phys. Lett., 1999, 313, 1-2, 179-183, https://doi.org/10.1016/S0009-2614(99)00993-8 . [all data]

Viggiano, Henchman, et al., 1992
Viggiano, A.A.; Henchman, M.J.; Dale, F.; Deakyne, C.A.; Paulson, J.F., Gas-Phase Reactions of Weak Bronsted Bases I-, PO3-, HSO4-, FSO3-, and CF3SO3- with Strong Bronsted Acids H2SO4, FSO3H, and CF3SO3H - A Quantitative Study, J. Am. Chem. Soc., 1992, 114, 11, 4299, https://doi.org/10.1021/ja00037a039 . [all data]

Viggiano, Morris, et al., 1991
Viggiano, A.A.; Morris, R.A.; Dale, F.; Paulson, J.F.; Henshman, M.J.; Miller, T.M.; Miller, S., The Gas Phase Acidities of HPO3 and HPO2: Enthalpies of Deprotonation, J. Phys. Chem., 1991, 95, 3, 1275, https://doi.org/10.1021/j100156a044 . [all data]

Henchman, Viggiano, et al., 1985
Henchman, M.; Viggiano, A.A.; Paulson, J.F.; Freedman, A.; Wormhoudt, J., Thermodynamic and kinetic properties of the metaphosphate anion, PO3-, in the gas phase, J. Am. Chem. Soc., 1985, 107, 1453. [all data]


Notes

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