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
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Henry's Law data
  • 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
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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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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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Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
MS - José A. Martinho Simões
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

(Xe⁺ • ) +  = (Xe⁺ • 2)

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

 +  = ( • )

By formula: Cl^- + Xe = (Cl^- • Xe)

 +  = ( • )

By formula: Br^- + Xe = (Br^- • Xe)

 +  = ( • )

By formula: Cs⁺ + Xe = (Cs⁺ • Xe)

 +  = ( • )

By formula: CH₃⁺ + Xe = (CH₃⁺ • Xe)

 +  = ( • )

By formula: F^- + Xe = (F^- • Xe)

 +  = IXe^-

By formula: I^- + Xe = IXe^-

Xe⁺ +  = (Xe⁺ • )

By formula: Xe⁺ + Xe = (Xe⁺ • Xe)

 +  = ( • )

By formula: K⁺ + Xe = (K⁺ • Xe)

C₅O₅WXe (solution) = C₅O₅W (solution) +  (solution)

By formula: C₅O₅WXe (solution) = C₅O₅W (solution) + Xe (solution)

C₅MoO₅Xe (g) = C₅MoO₅ (g) +  (g)

By formula: C₅MoO₅Xe (g) = C₅MoO₅ (g) + Xe (g)

C₅O₅WXe (g) = C₅O₅W (g) +  (g)

By formula: C₅O₅WXe (g) = C₅O₅W (g) + Xe (g)

C₅CrO₅Xe (g) = C₅CrO₅ (g) +  (g)

By formula: C₅CrO₅Xe (g) = C₅CrO₅ (g) + Xe (g)

 +  = ( • )

By formula: Li⁺ + Xe = (Li⁺ • Xe)

 +  = ( • )

By formula: Na⁺ + Xe = (Na⁺ • Xe)

 +  = ( • )

By formula: Rb⁺ + Xe = (Rb⁺ • Xe)

(Xe⁺ • 2) +  = (Xe⁺ • 3)

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

(Xe⁺ • 3) +  = (Xe⁺ • 4)

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

ClXe^- + 2 = ClXe₂^-

By formula: ClXe^- + 2Xe = ClXe₂^-

FXe₂^- + 3 = FXe₃^-

By formula: FXe₂^- + 3Xe = FXe₃^-

FXe^- + 2 = FXe₂^-

By formula: FXe^- + 2Xe = FXe₂^-

 +  = ( • )

By formula: NO^- + Xe = (NO^- • Xe)

IXe₉^- + 10 = IXe₁₀^-

By formula: IXe₉^- + 10Xe = IXe₁₀^-

IXe₁₀^- + 11 = IXe₁₁^-

By formula: IXe₁₀^- + 11Xe = IXe₁₁^-

IXe₁₁^- + 12 = IXe₁₂^-

By formula: IXe₁₁^- + 12Xe = IXe₁₂^-

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^-

 +  = ( • )

By formula: V⁺ + Xe = (V⁺ • Xe)

Enthalpy of reaction

 +  = ( • )

By formula: Fe⁺ + Xe = (Fe⁺ • Xe)

 +  = ( • )

By formula: Mg⁺ + Xe = (Mg⁺ • 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^-

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Ion clustering data, Mass spectrum (electron ionization), 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, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), 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)

Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics 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 compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Notes

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

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Ziegler, Mullins, et al., 1966
Ziegler, W.T.; Mullins, J.C.; Berquist, A.R., Calculation of the Vapor Pressure and Heats of Vaporization and Sublimation of Liquids and Solids below One Atmosphere Pressure. VIII. Xenon, Ga. Inst. Technol., Eng. Exp. Stn., Proj. A-764, Tech. Rep. No. 3, 1966. [all data]

Kemp, Kemp, et al., 1985
Kemp, R.C.; Kemp, W.R.G.; Smart, P.W., The triple point of xenon as a possible defining point on an international temperature scale, Metrologia, 1985, 21, 43. [all data]

Lahr and Eversole, 1962
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]

Clusius and Weigand, 1940
Clusius, K.; Weigand, K., Melting Curves of the Gases A, Kr, Xe, CH4, CH3D, CD4, C2H4, C2H6, COS, and PH3 to 200 Atmospheres Pressure. The Chane of Volume on Melting, Z. Phys. Chem., Abt. B, 1940, 46, 1-37. [all data]

Fonseca and Lobo, 1989
Fonseca, I.M.A.; Lobo, L.Q., Thermodynamics of liquid mixtures of xenon and methyl fluoride, Fluid Phase Equilib., 1989, 47, 249. [all data]

Calado, Rebelo, et al., 1986
Calado, J.C.G.; Rebelo, L.P.N.; Streett, W.B.; Zollweg, J.A., Thermodynamics of liquid (dimethylether + xenon), J. Chem. Thermodyn., 1986, 18, 931. [all data]

Theeuwes and Bearman, 1970
Theeuwes, F.; Bearman, R.J., The p,V,T behavior of dense fluids V. The vapor pressure and saturated liquid density of xenon, J. Chem. Thermodyn., 1970, 2, 507-12. [all data]

Chen, Lim, et al., 1975
Chen, H.H.; Lim, C.C.; Aziz, R.A., The Enthalpy of Vaporization and Internal Energy of Liquid Argon, Krypton, and Xenon Determined from Vapor Pressures, J. Chem. Thermodyn., 1975, 7, 2, 191-199, https://doi.org/10.1016/0021-9614(75)90268-2 . [all data]

Michels and Wassenaar, 1950
Michels, A.; Wassenaar, T., Vapour Pressure of Liquid Xenon, Physica (Amsterdam), 1950, 16, 3, 253-256, https://doi.org/10.1016/0031-8914(50)90023-1 . [all data]

Helm, 1976
Helm, H., Formation of Xe3+ Ions in Xenon at Temperatures Between 210 and 293 K, Phys. Rev. A, 1976, 14, 2, 680, https://doi.org/10.1103/PhysRevA.14.680 . [all data]

Keesee and Castleman, 1986
Keesee, R.G.; Castleman, A.W., Jr., Thermochemical data on Ggs-phase ion-molecule association and clustering reactions, J. Phys. Chem. Ref. Data, 1986, 15, 1011. [all data]

Wada, Kikkawa, et al., 2007
Wada, A.; Kikkawa, A.; Sugiyama, T.; Hiraoka, K., Thermochemical Stabilities of the Gas-phase Cluster Ions of Halide Ions with Rare Gas Atoms, Int. J. Mass Spectrom.., 2007, 267, 1-3, 284-287, https://doi.org/10.1016/j.ijms.2007.02.053 . [all data]

Gatland, 1984
Gatland, I.R., Determination of Ion-Atom Potentials from Mobility Experiments. in Swarms of Ions and Electrons In Gases, W. Lindinger, Ed., Springer-Verlag, NY,, 1984, 44. [all data]

Thackston, Eisele, et al., 1980
Thackston, M.G.; Eisele, F.L.; Pope, W.M.; Ellis, H.W.; McDaniel, E.W.; Gatland, I.R., Mobility of Cl- ions in Xe gas and the Cl--Xe interaction potential, J. Chem. Phys., 1980, 73, 3183. [all data]

De Vreugd, Wijnaendts van Resandt, et al., 1979
De Vreugd, C.; Wijnaendts van Resandt, R.W.; Los, J., The Well Depths of XeF^- and XeCl^- from Differential Scattering Measurements, Chem. Phys. Lett., 1979, 65, 1, 93, https://doi.org/10.1016/0009-2614(79)80134-7 . [all data]

Yourshaw, Lenzer, et al., 1998
Yourshaw, I.; Lenzer, T.; Reiser, G.; Neumark, D.M., Zero electron kinetic energy spectroscopy of the KrBr-, XeBr-, and KrCl- anions, J. Chem. Phys., 1998, 109, 13, 5247-5256, https://doi.org/10.1063/1.477141 . [all data]

Gatland, 1984, 2
Gatland, I.R., Swarms of Ions and Electrons in Gases, W. Lindinger, T. D. Mark and F. Howorka, eds. (Springer, New York, 1984, 1984, 44. [all data]

Gislason, 1984
Gislason, E.A., Quoted in I. R. Gatland in Swarms of Ions and Electrons in Gases, W. Lindinger, T. D. Mark and F. Howorka, eds. (Springer, New York, 1984, 1984, 44. [all data]

Viehland, 1984
Viehland, L.A., Interaction Potentials for Li+ - Rare - Gas Systems, Chem. Phys., 1984, 78, 2, 279, https://doi.org/10.1016/0301-0104(83)85114-3 . [all data]

Mason and Sharp, 1958
Mason, E.A.; Sharp, H.W., Mobility of gaseous lons in weak electric fields, Ann. Phys., 1958, 4, 3, 233, https://doi.org/10.1016/0003-4916(58)90049-6 . [all data]

Takebe, 1983
Takebe, M., The Generalized Mobility Curve for Alkali Ions in Rare Gases: Clustering Reactions and Mobility Curves, J. Chem. Phys., 1983, 78, 12, 7223, https://doi.org/10.1063/1.444763 . [all data]

McMahon, Heinis, et al., 1988
McMahon, T.; Heinis, T.; Nicol, G.; Hovey, J.K.; Kebarle, P., Methyl Cation Affinities, J. Am. Chem. Soc., 1988, 110, 23, 7591, https://doi.org/10.1021/ja00231a002 . [all data]

Foster, Williamson, et al., 1974
Foster, M.S.; Williamson, A.D.; Beauchamp, J.L., Photoionization mass spectrometry of trans-azomethane, Int. J. Mass Spectrom. Ion Phys., 1974, 15, 429. [all data]

Hovey and McMahon, 1986
Hovey, J.K.; McMahon, T.B., C-Xe Bond strength in the methylxenonium cation determined from ion cyclotron resonance methyl cation exchange equilibria, J. Am. Chem. Soc., 1986, 108, 528. [all data]

De Vrengd, Wijnaendts van Resandt, et al., 1979
De Vrengd, C.; Wijnaendts van Resandt, R.W.; Los, J., The well depths of XeF- and XeCl- from differential scattering measurements, Chem. Phys. Lett., 1979, 65, 93. [all data]

Lenzer, Furlanetto, et al., 1998
Lenzer, T.; Furlanetto, M.R.; Asmis, K.R.; Neumark, D.M., Zero electron kinetic energy and photoelectron spectroscopy of the XeI- anion, J. Chem. Phys., 1998, 109, 24, 10754-10766, https://doi.org/10.1063/1.477774 . [all data]

Ng, Trevor, et al., 1976
Ng, C.Y.; Trevor, D.J.; Mahan, B.H.; Lee, Y.T., Photoionization Study of the Xe2 van der Waals Molecule, J. Chem. Phys., 1976, 65, 10, 4327, https://doi.org/10.1063/1.432849 . [all data]

Mittman and Weise, 1974
Mittman, H.U.; Weise, H.P., Scattering of Ions V. Elastic Scattering of the Symmetric Rare Gas Ion - Rare Gas Atom Systems, Z. Naturforsch., 1974, A29, 400. [all data]

Lorentz, Olson, et al., 1973
Lorentz, D.C.; Olson, R.E.; Conklin, G.M., Rainbow Scattering for Ar+ + Ar and Xe+ + Xe, Chem. Phys. Lett., 1973, 20, 6, 589, https://doi.org/10.1016/0009-2614(73)80508-1 . [all data]

Samson, 1966
Samson, J.A.R., Ionization Potential of Molecular Xenon and Krypton, J. Opt. Soc. Am., 1966, 56, 8, 1140, https://doi.org/10.1364/JOSA.56.001140 . [all data]

Weiller, 1992
Weiller, B.H., J. Am. Chem. Soc., 1992, 114, 10910. [all data]

Wells and Weitz, 1992
Wells, J.R.; Weitz, E., J. Am. Chem. Soc., 1992, 114, 2783. [all data]

Hiraoka and Mori, 1990
Hiraoka, K.; Mori, T., Stability of Rare - Gas Cluster Ions, J. Chem. Phys., 1990, 92, 7, 4408, https://doi.org/10.1063/1.457751 . [all data]

Hendricks, de Clercq, et al., 2002
Hendricks, J.H.; de Clercq, H.L.; Freidhoff, C.B.; Arnold, S.T.; Eaton, J.G.; Fancher, C.; Lyapustina, S.A.; S., Anion solvation at the microscopic level: Photoelectron spectroscopy of the solvated anion clusters, NO-(Y)(n), where Y=Ar, Kr, Xe, N2O, H2S, NH3, H2O, and C2H4(OH)(2), J. Chem. Phys., 2002, 116, 18, 7926-7938, https://doi.org/10.1063/1.1457444 . [all data]

Bowen and Eaton, 1988
Bowen, K.H.; Eaton, J.G., Photodetachment Spectroscopy of Negative Cluster Ions, in The Structure of Small Molecules and Ions, Ed. R. Naaman, Z. Vager, Plenum NY, 1988, 1988, p.147-169. [all data]

Becker, Markovich, et al., 1997
Becker, I.; Markovich, G.; Chesnovsky, O., Bound Delocalized Excited States in I-Xen Clusters., Phys. Rev. Lett., 1997, 79, 18, 3391, https://doi.org/10.1103/PhysRevLett.79.3391 . [all data]

Sievers and Armentrout, 1995
Sievers, M.R.; Armentrout, P.B., Collision-Induced Dissociation Studies of V(CO)x+, x = 1-7: Sequential Bond Energies and the Heat of Formation of V(CO)6, J. Phys. Chem., 1995, 99, 20, 8135, https://doi.org/10.1021/j100020a041 . [all data]

Rodgers and Armentrout, 2000
Rodgers, M.T.; Armentrout, P.B., Noncovalent Metal-Ligand Bond Energies as Studied by Threshold Collision-Induced Dissociation, Mass Spectrom. Rev., 2000, 19, 4, 215, https://doi.org/10.1002/1098-2787(200007)19:4<215::AID-MAS2>3.0.CO;2-X . [all data]

Andersen, Muntean, et al., 2000
Andersen, A.; Muntean, F.; Walter, D.; Rue, C.; Armentrout, P.B., Collision-Induced Dissociation and Theoretical Studies of Mg+ Complexes with CO, CO2, NH3, CH4, CH3OH, and C6H6, J. Phys. Chem. A, 2000, 104, 4, 692, https://doi.org/10.1021/jp993031t . [all data]

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]

Ling, Milburn, et al., 1999
Ling, Y.; Milburn, R.K.; Hopkinson, A.C.; Bohme, D.K., Experimental and theoretical studies of the proton affinity of SiF4 and the structure of SiF4H+, J. Am. Soc. Mass Spectrom., 1999, 10, 848. [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]

Schafer and Rabeneck, 1987
Schafer, H.; Rabeneck, H., Massenspektroskopische untersuchung der borfluorid-komplexe ABF₄, Z. Anorg. Allg. Chem., 1987, 545, 224. [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]

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]

Dehmer and Dehmer, 1977
Dehmer, P.M.; Dehmer, J.L., Photoelectron spectrum of the Xe₂ van der Waals molecule, J. Chem. Phys., 1977, 67, 1774. [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]

Johnstone, Mellon, et al., 1970
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]

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]

Winters, Collins, et al., 1966
Winters, R.E.; Collins, J.H.; Courchene, W.L., Resolution of fine structure in ionization-efficiency curves, J. Chem. Phys., 1966, 45, 1931. [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]

Nicholson, 1963
Nicholson, A.J.C., Photo-ionization efficiency curves. Measurement of ionization potentials and interpretation of fine structure, J. Chem. Phys., 1963, 39, 954. [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 thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), 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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