metaphosphoric acid

• Formula: HO₃P
• Molecular weight: 79.9799
• IUPAC Standard InChI: InChI=1S/HO3P/c1-4(2)3/h(H,1,2,3) Copy

  
• IUPAC Standard InChIKey: UEZVMMHDMIWARA-UHFFFAOYSA-N Copy
• CAS Registry Number: 10343-62-1
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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

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

O₃P^- +  =

By formula: O₃P^- + H⁺ = HPO₃

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

View reactions leading to HO₃P⁺ (ion structure unspecified)

De-protonation reactions

O₃P^- +  =

By formula: O₃P^- + H⁺ = HPO₃

Vibrational and/or electronic energy levels

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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: Marilyn E. Jacox

State:   X

Additional references: Jacox, 1994, page 273

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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]

Withnall and Andrews, 1987
Withnall, R.; Andrews, L., FTIR spectra of the photolysis products of the phosphine-ozone complex in solid argon, J. Phys. Chem., 1987, 91, 4, 784, https://doi.org/10.1021/j100288a008 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Notes

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• Symbols used in this document:
  

  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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