Phosphorus dioxide


Gas phase 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.

Quantity Value Units Method Reference Comment
Δfgas-314.52kJ/molReviewChase, 1998Data last reviewed in September, 1962
Quantity Value Units Method Reference Comment
gas,1 bar253.69J/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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 600.600. to 6000.
A 11.2654656.69278
B 135.78801.031604
C -159.4602-0.242217
D 70.274460.018741
E 0.175039-2.283770
F -322.0613-338.3555
G 234.2843311.3126
H -314.5243-314.5243
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1962 Data last reviewed in September, 1962

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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess

View reactions leading to O2P+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
3.420 ± 0.010LPESN/AB
3.80 ± 0.22R-ARudnyi, Vovk, et al., 1986value altered from reference due to conversion from electron convention to ion convention; B
3.30 ± 0.20EndoWu and Tiernan, 1982B
2.99997IMREWormhoudt and Kobb, 1979B

Ionization energy determinations

IE (eV) Method Reference Comment
11.9 ± 0.5EIBalducci, Gigli, et al., 1981LLK
10.5 ± 0.1EIGingerich and Miller, 1975LLK
11.5 ± 0.5EISmoes and Drowart, 1973LLK
11. ± 1.EIDrowart, Myers, et al., 1972LLK

Ion clustering 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. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

(O3P- • 4294967295Phosphorus dioxide) + Phosphorus dioxide = O3P-

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

Quantity Value Units Method Reference Comment
Δr654. ± 26.kJ/molTherWang and Wang, 1999gas phase

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:   2B1


 Energy 
 (cm-1
 Med.   Transition   λmin 
 (nm) 
 λmax 
 (nm) 
 References

To = 30393 ± 2 gas 2B1-X 268 600 Verma and McCarthy, 1983
Hamilton, 1987
Ar 2B1-X 292 301 Withnall, McCluskey, et al., 1989


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 1 Sym. stretch 933 gas AB LF Verma and McCarthy, 1983
Lei, Teslja, et al., 2001
1 Sym. stretch 942 Ar AB Withnall, McCluskey, et al., 1989
2 Bend 389 gas AB LF Verma and McCarthy, 1983
Lei, Teslja, et al., 2001

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 1 PO s-stretch 1076 ± 12 gas LMR LF Kawaguchi, Saito, et al., 1985
Hamilton, 1987
Lei, Teslja, et al., 2001
2 Bend 397 ± 12 gas LMR LF Kawaguchi, Saito, et al., 1985
Hamilton, 1987
Lei, Teslja, et al., 2001
2 Bend 386.4 Ar IR Mielke, McCluskey, et al., 1990
b2 3 PO a-stretch 1327.53 gas DL Qian, Davies, et al., 1995
Qian, Davies, et al., 1995, 2
Lawson, Hoffman, et al., 2011
3 PO a-stretch 1319.1 Ar IR Andrews and Withnall, 1988
Withnall and Andrews, 1988
Mielke, McCluskey, et al., 1990
Bauschlicher, Zhou, et al., 2000

Additional references: Jacox, 1994, page 93; Jacox, 1998, page 194; Jacox, 2003, page 135

Notes

oEnergy separation between the v = 0 levels of the excited and electronic ground states.

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering 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.

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

Rudnyi, Vovk, et al., 1986
Rudnyi, E.B.; Vovk, O.M.; Sidirov, L.N.; Sorokin, I.D.; Alikhanyan, A.S., Enthalpy of formation of PO2-, PO3-, and NaPO2, High Temp., 1986, 24, 56. [all data]

Wu and Tiernan, 1982
Wu, R.L.C.; Tiernan, T.O., Collisional Studies of High Temperature Molecular Negative Ion-Neutral Reactions, Bull. Am. Phys. Soc., 1982, 27, 109. [all data]

Wormhoudt and Kobb, 1979
Wormhoudt, J.C.; Kobb, C.E., MS determination of negative and positive ion concentrations in coal fired MHD plasmas in Proc. 10th Materials Res. Symp. on Characterization of High Temp. Vapors, NBS Spec. Publ. U.S., 1979, 457. [all data]

Balducci, Gigli, et al., 1981
Balducci, G.; Gigli, G.; Guido, M., Dissociation energies of the molecules CrPO2(g) and CoO(g) by high-temperature mass spectrometry, J. Chem. Soc. Faraday Trans. 2, 1981, 77, 1107. [all data]

Gingerich and Miller, 1975
Gingerich, K.A.; Miller, F., Thermodynamic study of gaseous sodium-phosphorus-oxygen ternary molecules by high temperature mass spectrometry, J. Chem. Phys., 1975, 63, 1211. [all data]

Smoes and Drowart, 1973
Smoes, S.; Drowart, J., Atomization energies of phosphorus oxides, Faraday Symp. Chem. Soc., 1973, 139. [all data]

Drowart, Myers, et al., 1972
Drowart, J.; Myers, C.E.; Szwarc, R.; Vander Auwera-Mahieu, A.; Uy, O.M., Determination by the mass spectrometric Knudsen cell method of the atomization energies of the molecules PO and PO2, J. Chem. Soc. Faraday Trans. 2, 1972, 68, 1749. [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]

Verma and McCarthy, 1983
Verma, R.D.; McCarthy, C.F., A new spectrum of the PO, Can. J. Phys., 1983, 61, 8, 1149, https://doi.org/10.1139/p83-145 . [all data]

Hamilton, 1987
Hamilton, P.A., The laser induced fluorescence spectrum and radiative lifetime of PO2, J. Chem. Phys., 1987, 86, 1, 33, https://doi.org/10.1063/1.452624 . [all data]

Withnall, McCluskey, et al., 1989
Withnall, R.; McCluskey, M.; Andrews, L., Absorption spectra of the phosphorus oxide (PO2 and PO3) radicals in solid argon, J. Phys. Chem., 1989, 93, 1, 126, https://doi.org/10.1021/j100338a028 . [all data]

Lei, Teslja, et al., 2001
Lei, J.; Teslja, A.; Nizamov, B.; Dagdigian, P.J., Free-Jet Electronic Spectroscopy of the PO, J. Phys. Chem. A, 2001, 105, 33, 7828, https://doi.org/10.1021/jp011778p . [all data]

Kawaguchi, Saito, et al., 1985
Kawaguchi, K.; Saito, S.; Hirota, E.; Ohashi, N., Far-infrared laser magnetic resonance detection and microwave spectroscopy of the PO2 radical, J. Chem. Phys., 1985, 82, 11, 4893, https://doi.org/10.1063/1.448661 . [all data]

Mielke, McCluskey, et al., 1990
Mielke, Z.; McCluskey, M.; Andrews, L., Matrix reactions of P2 and O3 molecules, Chem. Phys. Lett., 1990, 165, 2-3, 146, https://doi.org/10.1016/0009-2614(90)85420-H . [all data]

Qian, Davies, et al., 1995
Qian, H.-B.; Davies, P.B.; Ahmad, I.K.; Hamilton, P.A., Detection of the infrared laser spectrum of the PO2 radical in the gas phase, Chem. Phys. Lett., 1995, 235, 3-4, 255, https://doi.org/10.1016/0009-2614(95)00128-Q . [all data]

Qian, Davies, et al., 1995, 2
Qian, H.-B.; Davies, P.B.; Hamilton, P.A., J. Chem. Soc., 1995, Faraday Trans. 91, 2993. [all data]

Lawson, Hoffman, et al., 2011
Lawson, M.A.; Hoffman, K.J.; Davies, P.B., Infrared diode laser spectroscopy of the ν3 fundamental band of the PO2 free radical, J. Mol. Spectrosc., 2011, 269, 1, 61, https://doi.org/10.1016/j.jms.2011.04.019 . [all data]

Andrews and Withnall, 1988
Andrews, L.; Withnall, R., Matrix reactions of oxygen atoms with P4. Infrared spectra of P4O, P2O, PO and PO2, J. Am. Chem. Soc., 1988, 110, 17, 5605, https://doi.org/10.1021/ja00225a001 . [all data]

Withnall and Andrews, 1988
Withnall, R.; Andrews, L., Infrared spectra of oxygen atom-phosphine reaction products trapped in solid argon, J. Phys. Chem., 1988, 92, 16, 4610, https://doi.org/10.1021/j100327a012 . [all data]

Bauschlicher, Zhou, et al., 2000
Bauschlicher, C.W., Jr.; Zhou, M.; Andrews, L., A Study of the Products of the Reaction of Phosphorus and Dioxygen, J. Phys. Chem. A, 2000, 104, 16, 3566, https://doi.org/10.1021/jp993623b . [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]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]


Notes

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