osmium

• Formula: Os
• Molecular weight: 190.23
• IUPAC Standard InChI: InChI=1S/Os Copy

  
• IUPAC Standard InChIKey: SYQBFIAQOQZEGI-UHFFFAOYSA-N Copy
• CAS Registry Number: 7440-04-2
• Chemical structure:
  This structure is also available as a 2d Mol file
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• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
• Data at other public NIST sites:
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  • NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
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  • 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 evaluated as indicated in comments:
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
B - John E. Bartmess

View reactions leading to Os⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

References

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

Bilodeau and Haugen, 2000
Bilodeau, R.C.; Haugen, H.K., Experimental studies of Os-: Observation of a bound-bound electric dipole transition in an atomic negative ion, Phys. Rev. Lett., 2000, 85, 3, 534-537, https://doi.org/10.1103/PhysRevLett.85.534 . [all data]

Fischer, Canali, et al., 2010
Fischer, A.; Canali, C.; Warring, U.; Kellerbauer, A.; Fritzsche, S., First Optical Hyperfine Structure Measurement in an Atomic Anion, Phys. Rev. Lett., 2010, 104, 7, 073004, https://doi.org/10.1103/PhysRevLett.104.073004 . [all data]

Lide, 1992
Lide, D.R. (Editor), Ionization potentials of atoms and atomic ions in Handbook of Chem. and Phys., 1992, 10-211. [all data]

Rauh and Ackermann, 1979
Rauh, E.G.; Ackermann, R.J., The first ionization potentials of the transition metals, J. Chem. Phys., 1979, 70, 1004. [all data]

Moore, 1970
Moore, C.E., Ionization potentials and ionization limits derived from the analyses of optical spectra, Natl. Stand. Ref. Data Ser., (U.S. Natl. Bur. Stand.), 1970, 34, 1. [all data]

Notes

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

• Symbols used in this document:
  

  EA	Electron affinity
  IE (evaluated)	Recommended ionization energy

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