Krypton

• Formula: Kr
• Molecular weight: 83.798
• IUPAC Standard InChI: InChI=1S/Kr Copy

  
• IUPAC Standard InChIKey: DNNSSWSSYDEUBZ-UHFFFAOYSA-N Copy
• CAS Registry Number: 7439-90-9
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Kr; UN 1056; UN 1970
• 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
• Other data available:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Henry's Law data
  • Ion clustering data
  • Mass spectrum (electron ionization)
  • Fluid Properties
• Data at other public NIST sites:
  • NIST Atomic Spectra Database - Lines Holdings (on physics web site)
  • NIST Atomic Spectra Database - Levels Holdings (on physics web site)
  • NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
  • Gas Phase Kinetics Database
  • 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:
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
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to Kr⁺ (ion structure unspecified)

Ionization 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]

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

Wetzel, Baiocchi, et al., 1987
Wetzel, R.C.; Baiocchi, F.A.; Hayes, T.R.; Freund, R.S., Absolute cross sections for electron-impact ionization of the rare-gas atoms by the fast-neutral-beam method, Phys. Rev. A, 1987, 35, 559. [all data]

Kelly, 1987
Kelly, R.L., Atomic and ionic spectrum lines of hydrogen through kryton, J. Phys. Chem. Ref. Data, 1987, 16. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Yoshino and Tanaka, 1979
Yoshino, K.; Tanaka, Y., Absorption spectrum of krypton in the vacuum UV region, J. Opt. Soc. Am., 1979, 69, 159. [all data]

Chaghtai and Hassan, 1973
Chaghtai, M.S.Z.; Hassan, V., The ionization potential and the 4s4p6nl levels of ⁸⁶Kr I, J. Phys. B:, 1973, 6, 433. [all data]

Spohr, Guyon, et al., 1971
Spohr, R.; Guyon, P.M.; Chupka, W.A.; Berkowitz, J., Threshold photoelectron detector for use in the vacuum ultraviolet, Rev. Sci. Instrum., 1971, 42, 1872. [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]

Hotop and Niehaus, 1969
Hotop, H.; Niehaus, A., Reactions of excited atoms molecules with atoms and molecules. II. Energy analysis of penning electrons, Z. Phys., 1969, 228, 68. [all data]

Gallegos and Klaver, 1967
Gallegos, E.J.; Klaver, R.F., Automatic voltage scanner for a peak switching mass spectrometer, J.Sci. Instr., 1967, 44, 427. [all data]

Dibeler, Reese, et al., 1966
Dibeler, V.H.; Reese, R.M.; Krauss, M., Mass spectrometric study of the photoionization of small molecules, Advan. Mass Spectrom., 1966, 3, 471. [all data]

Nicholson, 1965
Nicholson, A.J.C., Photoionization-efficiency curves. II. False and genuine structure, J. Chem. Phys., 1965, 43, 1171. [all data]

Al-Joboury and Turner, 1963
Al-Joboury, M.I.; Turner, D.W., Molecular photo-electron spectroscopy. Part I. The hydrogen and nitrogen molecules, J. Chem. Soc., 1963, 5141. [all data]

Notes

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

• Symbols used in this document:
  

  IE (evaluated)

  Recommended ionization energy

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