Xenon

• Formula: Xe
• Molecular weight: 131.293
• IUPAC Standard InChI: InChI=1S/Xe Copy

  
• IUPAC Standard InChIKey: FHNFHKCVQCLJFQ-UHFFFAOYSA-N Copy
• CAS Registry Number: 7440-63-3
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Xe; UN 2036; UN 2591; Xenon atom; Xeneisol 133A; Xenomatic
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Henry's Law 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
  • X-ray Photoelectron Spectroscopy Database, version 5.0
  • X-ray Photoelectron Spectroscopy Database, version 5.0
  • X-ray Photoelectron Spectroscopy Database, version 5.0
  • X-ray Photoelectron Spectroscopy Database, version 5.0
• Options:
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Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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Gas phase thermochemistry 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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t² + D*t³ + E/t²
H° − H°_298.15= A*t + B*t²/2 + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − E/(2*t²) + G
    C_p = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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View table.

Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Phase change data, Ion clustering data, 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:
MM - Michael M. Meot-Ner (Mautner)
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 Xe⁺ (ion structure unspecified)

Proton affinity at 298K

Gas basicity at 298K

Protonation entropy at 298K

Ionization energy determinations

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Phase change data, 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

 +  = ( • )

By formula: Br^- + Xe = (Br^- • Xe)

 +  = ( • )

By formula: CH₃⁺ + Xe = (CH₃⁺ • Xe)

 +  = ( • )

By formula: Cl^- + Xe = (Cl^- • Xe)

ClXe^- + 2 = ClXe₂^-

By formula: ClXe^- + 2Xe = ClXe₂^-

 +  = ( • )

By formula: Cs⁺ + Xe = (Cs⁺ • Xe)

 +  = ( • )

By formula: F^- + Xe = (F^- • Xe)

FXe^- + 2 = FXe₂^-

By formula: FXe^- + 2Xe = FXe₂^-

FXe₂^- + 3 = FXe₃^-

By formula: FXe₂^- + 3Xe = FXe₃^-

 +  = ( • )

By formula: Fe⁺ + Xe = (Fe⁺ • Xe)

 +  = IXe^-

By formula: I^- + Xe = IXe^-

IXe^- + 2 = IXe₂^-

By formula: IXe^- + 2Xe = IXe₂^-

IXe₂^- + 3 = IXe₃^-

By formula: IXe₂^- + 3Xe = IXe₃^-

IXe₃^- + 4 = IXe₄^-

By formula: IXe₃^- + 4Xe = IXe₄^-

IXe₄^- + 5 = IXe₅^-

By formula: IXe₄^- + 5Xe = IXe₅^-

IXe₅^- + 6 = IXe₆^-

By formula: IXe₅^- + 6Xe = IXe₆^-

IXe₆^- + 7 = IXe₇^-

By formula: IXe₆^- + 7Xe = IXe₇^-

IXe₇^- + 8 = IXe₈^-

By formula: IXe₇^- + 8Xe = IXe₈^-

IXe₈^- + 9 = IXe₉^-

By formula: IXe₈^- + 9Xe = IXe₉^-

IXe₉^- + 10 = IXe₁₀^-

By formula: IXe₉^- + 10Xe = IXe₁₀^-

IXe₁₀^- + 11 = IXe₁₁^-

By formula: IXe₁₀^- + 11Xe = IXe₁₁^-

IXe₁₁^- + 12 = IXe₁₂^-

By formula: IXe₁₁^- + 12Xe = IXe₁₂^-

 +  = ( • )

By formula: K⁺ + Xe = (K⁺ • Xe)

 +  = ( • )

By formula: Li⁺ + Xe = (Li⁺ • Xe)

 +  = ( • )

By formula: Mg⁺ + Xe = (Mg⁺ • Xe)

 +  = ( • )

By formula: NO^- + Xe = (NO^- • Xe)

NOXe^- + 2 = NOXe₂^-

By formula: NOXe^- + 2Xe = NOXe₂^-

NOXe₂^- + 3 = NOXe₃^-

By formula: NOXe₂^- + 3Xe = NOXe₃^-

NOXe₃^- + 4 = NOXe₄^-

By formula: NOXe₃^- + 4Xe = NOXe₄^-

 +  = ( • )

By formula: Na⁺ + Xe = (Na⁺ • Xe)

 +  = ( • )

By formula: Rb⁺ + Xe = (Rb⁺ • Xe)

 +  = ( • )

By formula: V⁺ + Xe = (V⁺ • Xe)

Enthalpy of reaction

Xe⁺ +  = (Xe⁺ • )

By formula: Xe⁺ + Xe = (Xe⁺ • Xe)

(Xe⁺ • ) +  = (Xe⁺ • 2)

By formula: (Xe⁺ • Xe) + Xe = (Xe⁺ • 2Xe)

(Xe⁺ • 2) +  = (Xe⁺ • 3)

By formula: (Xe⁺ • 2Xe) + Xe = (Xe⁺ • 3Xe)

(Xe⁺ • 3) +  = (Xe⁺ • 4)

By formula: (Xe⁺ • 3Xe) + Xe = (Xe⁺ • 4Xe)

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, Notes

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

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Lahr, P.H.; Eversole, W.G., Compression Isotherms of Argon, Krypton, and Xenon Through the Freezing Zone, J. Chem. Eng. Data, 1962, 7, 42-47. [all data]

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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]

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Johnstone, R.A.W.; Mellon, F.A.; Ward, S.D., Online acquisition of ionization efficiency data, Intern. J. Mass Spectrom. Ion Phys., 1970, 5, 241. [all data]

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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]

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Wada, Kikkawa, et al., 2007
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Notes

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, References

• Symbols used in this document:
  

  IE (evaluated)	Recommended ionization energy
  Ptriple	Triple point pressure
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  T	Temperature
  Tboil	Boiling point
  Tc	Critical temperature
  Ttriple	Triple point temperature
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions
  ρc	Critical density

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