osmium tetraoxide
- Formula: O4Os
- Molecular weight: 254.23
- IUPAC Standard InChIKey: ZEWCIYALLCXNSS-UHFFFAOYSA-N
- CAS Registry Number: 20816-12-0
- Chemical structure:
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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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 12.35 ± 0.03 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 161.8 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 155.5 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
12.0 | PE | Green, Kaltsoyannis, et al., 1990 | LL |
12.35 | PE | Evans, Hamnett, et al., 1974 | LLK |
12.320 | PE | Foster, Felps, et al., 1973 | LLK |
12.39 | PE | Diemann and Muller, 1973 | LLK |
12.97 ± 0.12 | EI | Dillard and Kiser, 1965 | RDSH |
13. ± 1. | EI | Grimley, Burns, et al., 1960 | RDSH |
12.35 ± 0.02 | PE | Burroughs, Evans, et al., 1974 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
OsO+ | 21.2 ± 0.2 | ? | EI | Dillard and Kiser, 1965 | RDSH |
OsO2+ | 17.1 ± 0.2 | ? | EI | Dillard and Kiser, 1965 | RDSH |
OsO3+ | 17.00 ± 0.10 | O | EI | Dillard and Kiser, 1965 | RDSH |
Os+ | 26.8 ± 0.5 | ? | EI | Dillard and Kiser, 1965 | RDSH |
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
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