Selenium(IV) oxide

• Formula: O₂Se
• Molecular weight: 110.96
• IUPAC Standard InChI: InChI=1S/O2Se/c1-3-2 Copy

  
• IUPAC Standard InChIKey: JPJALAQPGMAKDF-UHFFFAOYSA-N Copy
• CAS Registry Number: 7446-08-4
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Selenium oxide; Selenium dioxide; SeO2; Selenious anhydride; Selenium oxide (SeO2); Selenium(iv) dioxide (1:2); Rcra waste number U204; Selenous acid anhydride
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Phase change data
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • X-ray Photoelectron Spectroscopy Database, version 5.0
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

View reactions leading to O₂Se⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

Appearance energy determinations

Vibrational and/or electronic energy levels

Go To: Top, 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:   C

State:   3B²

State:   X

Additional references: Jacox, 1998, page 200; Jacox, 2003, page 144; Takeo, Hirota, et al., 1970

Notes

References

Go To: Top, 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.

Snodgrass, Coe, et al., 1989
Snodgrass, J.T.; Coe, J.V.; McHugh, K.M.; Freidhoff, C.B.; Bowen, K.H., Photoelectron Spectroscopy of the Selenium and Tellurium Containing Negative Ions: SeO₂^-, Se₂^- and Te₂^-, J. Phys. Chem., 1989, 93, 4, 1249, https://doi.org/10.1021/j100341a016 . [all data]

Ficalora, Thompson, et al., 1969
Ficalora, P.J.; Thompson, J.C.; Margrave, J.L., Mass spectrometric studies at high temperatures-XXVI.The sublimation of SeO, and SeO₃, J. Inorg. Nucl. Chem., 1969, 31, 3771. [all data]

Potts, 1977
Potts, A.W., The valence electronic structure of SeO₂ studied by UPS its relation to that of other group VIB dioxides, J. Electron Spectrosc. Relat. Phenom., 1977, 11, 157. [all data]

Duchesne and Rosen, 1941
Duchesne, J.; Rosen, B., Recherches sur le spectre d'absorption de la molecule SeO2, Physica, 1941, 8, 6, 540, https://doi.org/10.1016/S0031-8914(41)80036-6 . [all data]

Haranath and Sivaramamurty, 1961
Haranath, P.B.V.; Sivaramamurty, V., Indian J. Phys., 1961, 35, 599. [all data]

King and McLean, 1974
King, G.W.; McLean, P.R., Selenium dioxide: Vibrational analysis of the 3130 Å absorption system, J. Mol. Spectrosc., 1974, 51, 2, 363, https://doi.org/10.1016/0022-2852(74)90065-4 . [all data]

King and McLean, 1974, 2
King, G.W.; McLean, P.R., Selenium dioxide, J. Mol. Spectrosc., 1974, 52, 1, 154, https://doi.org/10.1016/0022-2852(74)90011-3 . [all data]

Crowther and Brown, 2004
Crowther, S.A.; Brown, J.M., The 313nm band system of SeO2. Part 1: vibrational structure, J. Mol. Spectrosc., 2004, 225, 2, 196, https://doi.org/10.1016/j.jms.2004.03.005 . [all data]

Crowther and Brown, 2004, 2
Crowther, S.A.; Brown, J.M., The 313nm band system of SeO2. Part 2: rotational structure, J. Mol. Spectrosc., 2004, 225, 2, 206, https://doi.org/10.1016/j.jms.2004.03.006 . [all data]

Voigt, Meyer, et al., 1970
Voigt, E.M.; Meyer, B.; Morelle, A.; Smith, J.J., The spectrum of matrix isolated SeO2: Evidence for slow internal conversion between excited states, J. Mol. Spectrosc., 1970, 34, 2, 179, https://doi.org/10.1016/0022-2852(70)90085-8 . [all data]

Duchesne and Rosen, 1947
Duchesne, J.; Rosen, B., Contribution to the Study of Electronic Spectra of Bent Triatomic Molecules, J. Chem. Phys., 1947, 15, 9, 631, https://doi.org/10.1063/1.1746620 . [all data]

King and Meatherall, 1984
King, G.W.; Meatherall, R.C., Selenium dioxide: Analysis of the 419-nm absorption system, J. Mol. Spectrosc., 1984, 106, 1, 196, https://doi.org/10.1016/0022-2852(84)90093-6 . [all data]

Hastie, Hauge, et al., 1969
Hastie, J.W.; Hauge, R.; Margrave, J.L., Infra-red spectra and geometry of SO2 and SeO2 in rare gas matrices, J. Inorg. Nucl. Chem., 1969, 31, 2, 281, https://doi.org/10.1016/0022-1902(69)80471-9 . [all data]

Nunziante Cesaro, Spoliti, et al., 1971
Nunziante Cesaro, S.; Spoliti, M.; Hinchcliffe, A.J.; Ogden, J.S., Infrared Spectrum and Thermodynamic Functions of Matrix Isolated SeO2, J. Chem. Phys., 1971, 55, 12, 5834, https://doi.org/10.1063/1.1675762 . [all data]

Brabson, Andrews, et al., 1996
Brabson, G.D.; Andrews, L.; Marsden, C.J., Reactions of Selenium and Oxygen. Matrix Infrared Spectra and Density Functional Calculations of Novel Se, J. Phys. Chem., 1996, 100, 41, 16487, https://doi.org/10.1021/jp961388g . [all data]

Konings, Booij, et al., 1998
Konings, R.J.M.; Booij, A.S.; Kovacs, A., The infrared spectra of SeO2 and TeO2 in the gas phase, Chem. Phys. Lett., 1998, 292, 4-6, 337, https://doi.org/10.1016/S0009-2614(98)00689-7 . [all data]

Giguere and Falk, 1960
Giguere, P.A.; Falk, M., The infrared spectra of selenium dioxide, Spectrochim. Acta, 1960, 16, 1-2, 1, https://doi.org/10.1016/0371-1951(60)80064-1 . [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]

Takeo, Hirota, et al., 1970
Takeo, H.; Hirota, E.; Morino, Y., Equilibrium structure and potential function of selenium dioxide by microwave spectroscopy, J. Mol. Spectrosc., 1970, 34, 3, 370, https://doi.org/10.1016/0022-2852(70)90020-2 . [all data]

Notes

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

• Symbols used in this document:
  

  AE	Appearance energy
  EA	Electron affinity

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