Argon

• Formula: Ar
• Molecular weight: 39.948
• IUPAC Standard InChI: InChI=1S/Ar Copy

  
• IUPAC Standard InChIKey: XKRFYHLGVUSROY-UHFFFAOYSA-N Copy
• CAS Registry Number: 7440-37-1
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Ar; UN 1006; UN 1951; argon atom
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 102
  • Henry's Law data
  • Gas phase ion energetics 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
  • X-ray Photoelectron Spectroscopy Database, version 5.0
  • X-ray Photoelectron Spectroscopy Database, version 5.0
• Options:
  • Switch to calorie-based units

Data at NIST subscription sites:

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

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Ion clustering 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 compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
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

Ar⁺ +  = (Ar⁺ • )

By formula: Ar⁺ + Ar = (Ar⁺ • Ar)

(Ar⁺ • ) +  = (Ar⁺ • 2)

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

(Ar⁺ • 2) +  = (Ar⁺ • 3)

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

Free energy of reaction

(Ar⁺ • 3) +  = (Ar⁺ • 4)

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

(Ar⁺ • 4) +  = (Ar⁺ • 5)

By formula: (Ar⁺ • 4Ar) + Ar = (Ar⁺ • 5Ar)

(Ar⁺ • 5) +  = (Ar⁺ • 6)

By formula: (Ar⁺ • 5Ar) + Ar = (Ar⁺ • 6Ar)

(Ar⁺ • 6) +  = (Ar⁺ • 7)

By formula: (Ar⁺ • 6Ar) + Ar = (Ar⁺ • 7Ar)

(Ar⁺ • 7) +  = (Ar⁺ • 8)

By formula: (Ar⁺ • 7Ar) + Ar = (Ar⁺ • 8Ar)

(Ar⁺ • 8) +  = (Ar⁺ • 9)

By formula: (Ar⁺ • 8Ar) + Ar = (Ar⁺ • 9Ar)

(Ar⁺ • 9) +  = (Ar⁺ • 10)

By formula: (Ar⁺ • 9Ar) + Ar = (Ar⁺ • 10Ar)

(Ar⁺ • 10) +  = (Ar⁺ • 11)

By formula: (Ar⁺ • 10Ar) + Ar = (Ar⁺ • 11Ar)

ArNO^- + 2 = Ar₂NO^-

By formula: ArNO^- + 2Ar = Ar₂NO^-

Ar₂NO^- + 3 = Ar₃NO^-

By formula: Ar₂NO^- + 3Ar = Ar₃NO^-

Ar₃NO^- + 4 = Ar₄NO^-

By formula: Ar₃NO^- + 4Ar = Ar₄NO^-

Ar₄NO^- + 5 = Ar₅NO^-

By formula: Ar₄NO^- + 5Ar = Ar₅NO^-

Ar₅NO^- + 6 = Ar₆NO^-

By formula: Ar₅NO^- + 6Ar = Ar₆NO^-

Ar₆NO^- + 7 = Ar₇NO^-

By formula: Ar₆NO^- + 7Ar = Ar₇NO^-

Ar₇NO^- + 8 = Ar₈NO^-

By formula: Ar₇NO^- + 8Ar = Ar₈NO^-

Ar₈NO^- + 9 = Ar₉NO^-

By formula: Ar₈NO^- + 9Ar = Ar₉NO^-

Ar₉NO^- + 10 = Ar₁₀NO^-

By formula: Ar₉NO^- + 10Ar = Ar₁₀NO^-

Ar₁₀NO^- + 11 = Ar₁₁NO^-

By formula: Ar₁₀NO^- + 11Ar = Ar₁₁NO^-

Ar₁₁NO^- + 12 = Ar₁₂NO^-

By formula: Ar₁₁NO^- + 12Ar = Ar₁₂NO^-

Ar₁₂NO^- + 13 = Ar₁₃NO^-

By formula: Ar₁₂NO^- + 13Ar = Ar₁₃NO^-

Ar₁₃NO^- + 14 = Ar₁₄NO^-

By formula: Ar₁₃NO^- + 14Ar = Ar₁₄NO^-

 +  = ( • )

By formula: Br^- + Ar = (Br^- • Ar)

 +  = ( • )

By formula: CH₃⁺ + Ar = (CH₃⁺ • Ar)

( • ) +  = ( • 2)

By formula: (CH₃⁺ • Ar) + Ar = (CH₃⁺ • 2Ar)

( • 2) +  = ( • 3)

By formula: (CH₃⁺ • 2Ar) + Ar = (CH₃⁺ • 3Ar)

( • 3) +  = ( • 4)

By formula: (CH₃⁺ • 3Ar) + Ar = (CH₃⁺ • 4Ar)

( • 4) +  = ( • 5)

By formula: (CH₃⁺ • 4Ar) + Ar = (CH₃⁺ • 5Ar)

( • 5) +  = ( • 6)

By formula: (CH₃⁺ • 5Ar) + Ar = (CH₃⁺ • 6Ar)

( • 6) +  = ( • 7)

By formula: (CH₃⁺ • 6Ar) + Ar = (CH₃⁺ • 7Ar)

( • 7) +  = ( • 8)

By formula: (CH₃⁺ • 7Ar) + Ar = (CH₃⁺ • 8Ar)

CO⁺ +  = (CO⁺ • )

By formula: CO⁺ + Ar = (CO⁺ • Ar)

 +  = ( • )

By formula: CO₂⁺ + Ar = (CO₂⁺ • Ar)

 +  = ( • )

By formula: Co⁺ + Ar = (Co⁺ • Ar)

 +  = ( • )

By formula: Cr⁺ + Ar = (Cr⁺ • Ar)

 +  = ( • )

By formula: Cs⁺ + Ar = (Cs⁺ • Ar)

D₃⁺ +  = (D₃⁺ • )

By formula: D₃⁺ + Ar = (D₃⁺ • Ar)

(D₃⁺ • ) +  = (D₃⁺ • 2)

By formula: (D₃⁺ • Ar) + Ar = (D₃⁺ • 2Ar)

(D₃⁺ • 2) +  = (D₃⁺ • 3)

By formula: (D₃⁺ • 2Ar) + Ar = (D₃⁺ • 3Ar)

(D₃⁺ • 3) +  = (D₃⁺ • 4)

By formula: (D₃⁺ • 3Ar) + Ar = (D₃⁺ • 4Ar)

(D₃⁺ • 4) +  = (D₃⁺ • 5)

By formula: (D₃⁺ • 4Ar) + Ar = (D₃⁺ • 5Ar)

(D₃⁺ • 5) +  = (D₃⁺ • 6)

By formula: (D₃⁺ • 5Ar) + Ar = (D₃⁺ • 6Ar)

(D₃⁺ • 6) +  = (D₃⁺ • 7)

By formula: (D₃⁺ • 6Ar) + Ar = (D₃⁺ • 7Ar)

 +  = ArF^-

By formula: F^- + Ar = ArF^-

 +  = ( • )

By formula: Fe⁺ + Ar = (Fe⁺ • Ar)

 +  = ( • )

By formula: H₂⁺ + Ar = (H₂⁺ • Ar)

H₃⁺ +  = (H₃⁺ • )

By formula: H₃⁺ + Ar = (H₃⁺ • Ar)

(H₃⁺ • ) +  = (H₃⁺ • 2)

By formula: (H₃⁺ • Ar) + Ar = (H₃⁺ • 2Ar)

(H₃⁺ • 2) +  = (H₃⁺ • 3)

By formula: (H₃⁺ • 2Ar) + Ar = (H₃⁺ • 3Ar)

(H₃⁺ • 3) +  = (H₃⁺ • 4)

By formula: (H₃⁺ • 3Ar) + Ar = (H₃⁺ • 4Ar)

(H₃⁺ • 4) +  = (H₃⁺ • 5)

By formula: (H₃⁺ • 4Ar) + Ar = (H₃⁺ • 5Ar)

(H₃⁺ • 5) +  = (H₃⁺ • 6)

By formula: (H₃⁺ • 5Ar) + Ar = (H₃⁺ • 6Ar)

(H₃⁺ • 6) +  = (H₃⁺ • 7)

By formula: (H₃⁺ • 6Ar) + Ar = (H₃⁺ • 7Ar)

Hg⁺ +  = (Hg⁺ • )

By formula: Hg⁺ + Ar = (Hg⁺ • Ar)

 +  = ( • )

By formula: I^- + Ar = (I^- • Ar)

 +  = ( • )

By formula: K⁺ + Ar = (K⁺ • Ar)

Kr⁺ +  = (Kr⁺ • )

By formula: Kr⁺ + Ar = (Kr⁺ • Ar)

 +  = ( • )

By formula: Li⁺ + Ar = (Li⁺ • Ar)

Free energy of reaction

 +  = ( • )

By formula: Mg⁺ + Ar = (Mg⁺ • Ar)

N⁺ +  = (N⁺ • )

By formula: N⁺ + Ar = (N⁺ • Ar)

Enthalpy of reaction

 +  = ( • )

By formula: NO^- + Ar = (NO^- • Ar)

 +  = ( • )

By formula: N₂⁺ + Ar = (N₂⁺ • Ar)

( • ) +  = ( • 2)

By formula: (N₂⁺ • Ar) + Ar = (N₂⁺ • 2Ar)

( • 2) +  = ( • 3)

By formula: (N₂⁺ • 2Ar) + Ar = (N₂⁺ • 3Ar)

( • 3) +  = ( • 4)

By formula: (N₂⁺ • 3Ar) + Ar = (N₂⁺ • 4Ar)

( • 4) +  = ( • 5)

By formula: (N₂⁺ • 4Ar) + Ar = (N₂⁺ • 5Ar)

( • 5) +  = ( • 6)

By formula: (N₂⁺ • 5Ar) + Ar = (N₂⁺ • 6Ar)

( • 6) +  = ( • 7)

By formula: (N₂⁺ • 6Ar) + Ar = (N₂⁺ • 7Ar)

( • 7) +  = ( • 8)

By formula: (N₂⁺ • 7Ar) + Ar = (N₂⁺ • 8Ar)

( • 8) +  = ( • 9)

By formula: (N₂⁺ • 8Ar) + Ar = (N₂⁺ • 9Ar)

 +  = ( • )

By formula: Na⁺ + Ar = (Na⁺ • Ar)

O^- +  = (O^- • )

By formula: O^- + Ar = (O^- • Ar)

(O^- • ) +  = (O^- • 2)

By formula: (O^- • Ar) + Ar = (O^- • 2Ar)

(O^- • 2) +  = (O^- • 3)

By formula: (O^- • 2Ar) + Ar = (O^- • 3Ar)

(O^- • 3) +  = (O^- • 4)

By formula: (O^- • 3Ar) + Ar = (O^- • 4Ar)

(O^- • 4) +  = (O^- • 5)

By formula: (O^- • 4Ar) + Ar = (O^- • 5Ar)

(O^- • 5) +  = (O^- • 6)

By formula: (O^- • 5Ar) + Ar = (O^- • 6Ar)

(O^- • 6) +  = (O^- • 7)

By formula: (O^- • 6Ar) + Ar = (O^- • 7Ar)

(O^- • 7) +  = (O^- • 8)

By formula: (O^- • 7Ar) + Ar = (O^- • 8Ar)

(O^- • 8) +  = (O^- • 9)

By formula: (O^- • 8Ar) + Ar = (O^- • 9Ar)

(O^- • 9) +  = (O^- • 10)

By formula: (O^- • 9Ar) + Ar = (O^- • 10Ar)

(O^- • 10) +  = (O^- • 11)

By formula: (O^- • 10Ar) + Ar = (O^- • 11Ar)

(O^- • 11) +  = (O^- • 12)

By formula: (O^- • 11Ar) + Ar = (O^- • 12Ar)

(O^- • 12) +  = (O^- • 13)

By formula: (O^- • 12Ar) + Ar = (O^- • 13Ar)

(O^- • 13) +  = (O^- • 14)

By formula: (O^- • 13Ar) + Ar = (O^- • 14Ar)

(O^- • 14) +  = (O^- • 15)

By formula: (O^- • 14Ar) + Ar = (O^- • 15Ar)

(O^- • 15) +  = (O^- • 16)

By formula: (O^- • 15Ar) + Ar = (O^- • 16Ar)

(O^- • 16) +  = (O^- • 17)

By formula: (O^- • 16Ar) + Ar = (O^- • 17Ar)

(O^- • 17) +  = (O^- • 18)

By formula: (O^- • 17Ar) + Ar = (O^- • 18Ar)

(O^- • 18) +  = (O^- • 19)

By formula: (O^- • 18Ar) + Ar = (O^- • 19Ar)

(O^- • 19) +  = (O^- • 20)

By formula: (O^- • 19Ar) + Ar = (O^- • 20Ar)

(O^- • 20) +  = (O^- • 21)

By formula: (O^- • 20Ar) + Ar = (O^- • 21Ar)

(O^- • 21) +  = (O^- • 22)

By formula: (O^- • 21Ar) + Ar = (O^- • 22Ar)

(O^- • 22) +  = (O^- • 23)

By formula: (O^- • 22Ar) + Ar = (O^- • 23Ar)

(O^- • 23) +  = (O^- • 24)

By formula: (O^- • 23Ar) + Ar = (O^- • 24Ar)

(O^- • 24) +  = (O^- • 25)

By formula: (O^- • 24Ar) + Ar = (O^- • 25Ar)

(O^- • 25) +  = (O^- • 26)

By formula: (O^- • 25Ar) + Ar = (O^- • 26Ar)

 +  = ( • )

By formula: O₂^- + Ar = (O₂^- • Ar)

 +  = ( • )

By formula: Rb⁺ + Ar = (Rb⁺ • Ar)

Xe⁺ +  = (Xe⁺ • )

By formula: Xe⁺ + Ar = (Xe⁺ • Ar)

References

Go To: Top, Ion clustering data, Notes

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

Teng and Conway, 1973
Teng, H.H.; Conway, D.C., Ion - Molecule Equilibria in Mixtures of N2 and Ar, J. Chem. Phys., 1973, 59, 5, 2316, https://doi.org/10.1063/1.1680338 . [all data]

Turner and Conway, 1979
Turner, D.L.; Conway, D.C., Study of the 2Ar + Ar2+ = Ar + Ar3+ Reaction, J. Chem. Phys., 1979, 71, 4, 1899, https://doi.org/10.1063/1.438544 . [all data]

Liu and Conway, 1975
Liu, W.F.; Conway, D.C., Ion - Molecule Reactions in Ar at 296, 195, and 77 K, J. Chem. Phys., 1975, 62, 8, 3070, https://doi.org/10.1063/1.430906 . [all data]

Hiraoka and Mori, 1989
Hiraoka, K.; Mori, T., Formation and Stabilities of Cluster Ions Arn+, J. Chem. Phys., 1989, 90, 12, 7143, https://doi.org/10.1063/1.456245 . [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]

Zhao, Yourshaw, et al., 1994
Zhao, Y.X.; Yourshaw, I.; Reiser, G.; Arnold, C.C.; Neumark, D.M., Study of the ArBr(-), ArI(-), and KrI(-) anions and the corresponding neutral van der Waals complexes by anion zero electron kinetic energy, J. Chem. Phys., 1994, 101, 8, 6538, https://doi.org/10.1063/1.468500 . [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]

Hiraoka, Kudaka, et al., 1991
Hiraoka, K.; Kudaka, I.; Yamabe, S., A Charge-Transfer Complex CH3+ Ar in the Gas Phase, Chem. Phys. Lett., 1991, 178, 1, 103, https://doi.org/10.1016/0009-2614(91)85060-A . [all data]

Norwood, Guo, et al., 1989
Norwood, K.; Guo, J.H.; Luo, G.; Ng, C.Y., A Study of Intramolecular Charge Transfer in Mixed Ar/Co Dimer and Trimer Ions Using the Photoion - Photoelectron Coincidence Method, Chem. Phys., 1989, 129, 1, 109, https://doi.org/10.1016/0301-0104(89)80023-0 . [all data]

Pratt and Dehmer, 1983
Pratt, S.T.; Dehmer, P.M., On the Dissociation Energy of ArCO2+, J. Chem. Phys., 1983, 78, 10, 6336, https://doi.org/10.1063/1.444561 . [all data]

Asher, Bellert, et al., 1994
Asher, R.L.; Bellert, D.; Buthelezi, T.; Brucat, P.J., The Bond Strength of Ni2+, Chem. Phys. Lett., 1994, 224, 5-6, 529, https://doi.org/10.1016/0009-2614(94)00574-5 . [all data]

Kemper, Hsu, et al., 1991
Kemper, P.R.; Hsu, M.T.; Bowers, M.T., Transition - Metal Ion - Rare Gas Clusters: Bond Strengths and Molecular Parameters for Co+(He/Ne)n, Ni+(He/Ne)n, and Cr+(He/Ne/Ar), J. Phys. Chem., 1991, 95, 26, 10600, https://doi.org/10.1021/j100179a022 . [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]

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]

Hiraoka and Mori, 1989, 2
Hiraoka, K.; Mori, T., Isotope Effect and Nature of Bonding in the Cluster Ions H3+(Ar)n and D3+(Ar)n, J. Chem. Phys., 1989, 91, 8, 4821, https://doi.org/10.1063/1.456720 . [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]

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]

Bedford and Smith, 1990
Bedford, D.K.; Smith, D., Variable-temperature selected ion flow tube studies of the reactions of Ar+, Ar2+ and ArHn+ (n=1-3) ions with H2, HD and D2 at 300 K and 80 K, Int. J. Mass Spectrom. Ion Proc., 1990, 98, 2, 179, https://doi.org/10.1016/0168-1176(90)85017-V . [all data]

Linn, Brom, et al., 1985
Linn, S.H.; Brom, J.M., Jr.; Tzeng, W.-B.; Ng, C.Y., Photoionization study of HgAr, J. Chem. Phys., 1985, 82, 648. [all data]

Dehmer and Pratt, 1982
Dehmer, P.M.; Pratt, S.T., Photoionization of ArKr, ArXe, and KrXe and bond dissociation energies of the rare gas dimer ions, J. Chem. Phys., 1982, 77, 4804. [all data]

Ng, Tiedemann, et al., 1977
Ng, C.Y.; Tiedemann, P.W.; Mahan, B.H.; Lee, Y.T., Photoionization Studies of the Diatomic Internuclear Rare Gas Molecules XeKr, XeAr, and KrAr, J. Chem. Phys., 1977, 66, 12, 5737, https://doi.org/10.1063/1.433848 . [all data]

McKnight and Sawina, 1973
McKnight, L.G.; Sawina, J.M., Equilibrium Constants and Binding Energies of Alkali Metal Ions with Inert Gases, Bull. Am. Phys. Soc., 1973, 18, 804. [all data]

Cassidy and Elford, 1985
Cassidy, R.A.; Elford, M.T., The Mobility of Li+ Ions in Helium and Argon, Aust. J. Phys., 1985, 38, 4, 587, https://doi.org/10.1071/PH850587 . [all data]

Keller, Beyer, et al., 1973
Keller, C.E.; Beyer, R.A.; Colonna-Romano, L.M., Clustering of Ar to Li+ and a Comparison of Drift - Tube Models, Phys. Rev. A, 1973, 8, 3, 1446, https://doi.org/10.1103/PhysRevA.8.1446 . [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]

Haynes, Freysinger, et al., 1995
Haynes, C.L.; Freysinger, W.; Armentrout, P.B., Collision-induced dissociation of N₃⁺(X³-) with Ne, Ar, Kr, and Xe, Int. J. Mass Spectrom. Ion Processes, 1995, 149/150, 267. [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]

Kim and Bowers, 1990
Kim, H.S.; Bowers, M.T., Energetics, Structure and Photodissociation Dynamics of the Cluster Ar.N2+, J. Chem. Phys., 1990, 93, 2, 1158, https://doi.org/10.1063/1.459179 . [all data]

Hiraoka and Nakajima, 1988
Hiraoka, K.; Nakajima, G., A Determination of the Stabilities of N2+(N2)n and O2+(N2)n with n = 1 - 11 from Measurements of the Gas - Phase Ion Equilibria, J. Chem. Phys., 1988, 88, 12, 7709, https://doi.org/10.1063/1.454285 . [all data]

Hiraoka, Mori, et al., 1992
Hiraoka, K.; Mori, T.; Yamabe, S., Gas-Phase Solvation of N2+ with Ar Atoms - A Charge Switch in the Reaction N2+(Ar)...Ar+(N2), Chem. Phys. Lett., 1992, 189, 1, 7, https://doi.org/10.1016/0009-2614(92)85144-Y . [all data]

Armentrout and Rodgers, 2000
Armentrout, P.B.; Rodgers, M.T., An Absolute Sodium Cation Affinity Scale: Threshold Collision-Induced Dissociation Experiments and ab Initio Theory, J. Phys. Chem A, 2000, 104, 11, 2238, https://doi.org/10.1021/jp991716n . [all data]

Arnold, Hendricks, et al., 1995
Arnold, S.T.; Hendricks, J.H.; Bowen, K.H., Photoelectron spectroscopy of the solvated anion clusters O-(Ar)(n=1-26,34): Energetics and structure, J. Chem. Phys., 1995, 102, 1, 39, https://doi.org/10.1063/1.469415 . [all data]

Jones, Lister, et al., 1980
Jones, J.D.C.; Lister, D.G.; Twiddy, N.D., Equilibrium Constant for the Reaction Xe+ + 2Ar ---> XeAr+ + Ar in the Temperature Range 150 - 300 K and the Dissociation Energy of XeAr+, Chem. Phys. Lett., 1980, 70, 3, 575, https://doi.org/10.1016/0009-2614(80)80128-X . [all data]

Notes

Go To: Top, Ion clustering data, References

• Symbols used in this document:
  

  T	Temperature
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.