osmium tetraoxide

• Formula: O₄Os
• Molecular weight: 254.23
• IUPAC Standard InChI: InChI=1S/4O.Os/q4*-2;+8 Copy

  
• IUPAC Standard InChIKey: ZEWCIYALLCXNSS-UHFFFAOYSA-N Copy
• CAS Registry Number: 20816-12-0
• 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.
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Options:
  • Switch to calorie-based units

Gas phase ion energetics data

Go To: Top, References, Notes

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

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

Appearance energy determinations

References

Go To: Top, Gas phase ion energetics data, Notes

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

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Green, Kaltsoyannis, et al., 1990
Green, J.C.; Kaltsoyannis, N.; Sze, K.H., An investigation of the electronic structure of osmium tetroxide by photoelectron spectroscopy with variable photon energy, Chem. Phys. Lett., 1990, 175, 359. [all data]

Evans, Hamnett, et al., 1974
Evans, S.; Hamnett, A.; Orchard, A.F., Concerning the ultraviolet photoelectron spectra of osmium and ruthenium tetroxide, J. Am. Chem. Soc., 1974, 96, 6221. [all data]

Foster, Felps, et al., 1973
Foster, S.; Felps, S.; Cusachs, L.C.; McGlynn, S.P., Photoelectron spectra of osmium and ruthenium tetroxides, J. Am. Chem. Soc., 1973, 95, 5521. [all data]

Diemann and Muller, 1973
Diemann, E.; Muller, A., The He(I) photoelectron spectra of OsO₄ and RuO₄, Chem. Phys. Lett., 1973, 19, 538. [all data]

Dillard and Kiser, 1965
Dillard, J.G.; Kiser, R.W., Ionization and dissociation of ruthenium and osmium tetroxides, J. Phys. Chem., 1965, 69, 3893. [all data]

Grimley, Burns, et al., 1960
Grimley, R.T.; Burns, R.P.; Inghram, M.G., Mass spectrometric study of the osmium-oxygen system, J. Chem. Phys., 1960, 33, 308. [all data]

Burroughs, Evans, et al., 1974
Burroughs, P.; Evans, S.; Hamnett, A.; Orchard, A.F.; Richardson, N.V., He-I photoelectron spectra of some d (0) transition metal compounds, J. Chem. Soc. Faraday Trans. 2, 1974, 70, 1895. [all data]

Notes

Go To: Top, Gas phase ion energetics data, References

• Symbols used in this document:
  

  AE	Appearance energy
  IE (evaluated)	Recommended ionization energy

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.