Phosphorus dioxide


Gas phase thermochemistry data

Go To: Top, Reaction thermochemistry data, References, Notes

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

Quantity Value Units Method Reference Comment
Δfgas-75.172kcal/molReviewChase, 1998Data last reviewed in September, 1962
Quantity Value Units Method Reference Comment
gas,1 bar60.633cal/mol*KReviewChase, 1998Data last reviewed in September, 1962

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 298. to 600.600. to 6000.
A 2.69251013.54990
B 32.454110.246559
C -38.11190-0.057891
D 16.796000.004479
E 0.041835-0.545834
F -76.97450-80.86891
G 55.9952974.40550
H -75.17311-75.17311
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1962 Data last reviewed in September, 1962

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry 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 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- • 4294967295Phosphorus dioxide) + Phosphorus dioxide = O3P-

By formula: (O3P- • 4294967295O2P) + O2P = O3P-

Quantity Value Units Method Reference Comment
Δr156.4 ± 6.3kcal/molTherWang and Wang, 1999gas phase

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

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]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References