Phosphorus dioxide
- Formula: O2P
- Molecular weight: 62.9726
- IUPAC Standard InChI: InChI=1S/O2P/c1-3-2
- IUPAC Standard InChIKey: CJDZTJNITSFKRE-UHFFFAOYSA-N
- CAS Registry Number: 12164-97-5
- Chemical structure:
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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
By formula: (O3P- • 4294967295O2P) + O2P = O3P-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 156.4 ± 6.3 | kcal/mol | Ther | Wang and Wang, 1999 | gas phase |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, References, Notes
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 ± 0.010 | LPES | N/A | B |
| 3.80 ± 0.22 | R-A | Rudnyi, Vovk, et al., 1986 | value altered from reference due to conversion from electron convention to ion convention; B |
| 3.30 ± 0.20 | Endo | Wu and Tiernan, 1982 | B |
| 2.99997 | IMRE | Wormhoudt and Kobb, 1979 | B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 11.9 ± 0.5 | EI | Balducci, Gigli, et al., 1981 | LLK |
| 10.5 ± 0.1 | EI | Gingerich and Miller, 1975 | LLK |
| 11.5 ± 0.5 | EI | Smoes and Drowart, 1973 | LLK |
| 11. ± 1. | EI | Drowart, Myers, et al., 1972 | LLK |
Vibrational and/or electronic energy levels
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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: 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
| o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
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]
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]
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
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
EA Electron affinity ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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