Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

NOTICE: Due to scheduled maintenance at our Gaithersburg campus, this site will not be available from 5:00 pm EDT (21:00 UTC) on Friday October 25 until 5:00 pm (21:00 UTC) on Sunday October 27. We apologize for any inconvenience this outage may cause.

Argon cation


Gas phase thermochemistry data

Go To: Top, Reaction thermochemistry data, References, Notes

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

Quantity Value Units Method Reference Comment
gas,1 bar39.771cal/mol*KReviewChase, 1998Data last reviewed in March, 1982

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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

Ar+ + Argon = (Ar+ bullet Argon)

By formula: Ar+ + Ar = (Ar+ bullet Ar)

Quantity Value Units Method Reference Comment
Deltar20. ± 20.kcal/molAVGN/AAverage of 5 out of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Deltar12.8cal/mol*KPHPMSTeng and Conway, 1973gas phase; switching reaction(N2+)Ar; Turner and Conway, 1979, Liu and Conway, 1975

(Ar+ bullet 2Argon) + Argon = (Ar+ bullet 3Argon)

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

Quantity Value Units Method Reference Comment
Deltar4.9 ± 0.3kcal/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Deltar17.3cal/mol*KPHPMSHiraoka and Mori, 1989gas phase

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
2.077.PHPMSTeng and Conway, 1973gas phase

(Ar+ bullet Argon) + Argon = (Ar+ bullet 2Argon)

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

Quantity Value Units Method Reference Comment
Deltar5.06 ± 0.08kcal/molPHPMSTurner and Conway, 1979gas phase
Quantity Value Units Method Reference Comment
Deltar20.3cal/mol*KPHPMSTurner and Conway, 1979gas phase

(Ar+ bullet 10Argon) + Argon = (Ar+ bullet 11Argon)

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

Quantity Value Units Method Reference Comment
Deltar1.6 ± 0.2kcal/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Deltar17.4cal/mol*KPHPMSHiraoka and Mori, 1989gas phase

(Ar+ bullet 9Argon) + Argon = (Ar+ bullet 10Argon)

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

Quantity Value Units Method Reference Comment
Deltar1.55 ± 0.20kcal/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Deltar17.1cal/mol*KPHPMSHiraoka and Mori, 1989gas phase

(Ar+ bullet 3Argon) + Argon = (Ar+ bullet 4Argon)

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

Quantity Value Units Method Reference Comment
Deltar1.7 ± 0.2kcal/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Deltar13.9cal/mol*KPHPMSHiraoka and Mori, 1989gas phase

(Ar+ bullet 4Argon) + Argon = (Ar+ bullet 5Argon)

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

Quantity Value Units Method Reference Comment
Deltar1.6 ± 0.2kcal/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Deltar16.1cal/mol*KPHPMSHiraoka and Mori, 1989gas phase

(Ar+ bullet 5Argon) + Argon = (Ar+ bullet 6Argon)

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

Quantity Value Units Method Reference Comment
Deltar1.6 ± 0.2kcal/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Deltar17.0cal/mol*KPHPMSHiraoka and Mori, 1989gas phase

(Ar+ bullet 6Argon) + Argon = (Ar+ bullet 7Argon)

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

Quantity Value Units Method Reference Comment
Deltar1.6 ± 0.2kcal/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Deltar17.4cal/mol*KPHPMSHiraoka and Mori, 1989gas phase

(Ar+ bullet 7Argon) + Argon = (Ar+ bullet 8Argon)

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

Quantity Value Units Method Reference Comment
Deltar1.6 ± 0.2kcal/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Deltar17.4cal/mol*KPHPMSHiraoka and Mori, 1989gas phase

(Ar+ bullet 8Argon) + Argon = (Ar+ bullet 9Argon)

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

Quantity Value Units Method Reference Comment
Deltar1.6 ± 0.2kcal/molPHPMSHiraoka and Mori, 1989gas phase
Quantity Value Units Method Reference Comment
Deltar17.3cal/mol*KPHPMSHiraoka and Mori, 1989gas phase

(Ar+ bullet Carbon monoxide) + Carbon monoxide = (Ar+ bullet 2Carbon monoxide)

By formula: (Ar+ bullet CO) + CO = (Ar+ bullet 2CO)

Quantity Value Units Method Reference Comment
Deltar3.kcal/molPIPECONorwood, Guo, et al., 1989gas phase; approximate value from Ar+(2P3/2) 2CO -> Ar+(2P3/2) + 2CO

Ar+ + Hydrogen = (Ar+ bullet Hydrogen)

By formula: Ar+ + H2 = (Ar+ bullet H2)

Quantity Value Units Method Reference Comment
Deltar22.4kcal/molFAShul, Passarella, et al., 1987gas phase; switching reaction(Ar+)Ar, «DELTA»rH>; Dehmer and Pratt, 1982

Ar+ + Nitrogen = (Ar+ bullet Nitrogen)

By formula: Ar+ + N2 = (Ar+ bullet N2)

Quantity Value Units Method Reference Comment
Deltar39.2kcal/molFAShul, Passarella, et al., 1987gas phase; switching reaction(Ar+)Ar, «DELTA»rH>; Dehmer and Pratt, 1982

Ar+ + Carbon monoxide = (Ar+ bullet Carbon monoxide)

By formula: Ar+ + CO = (Ar+ bullet CO)

Quantity Value Units Method Reference Comment
Deltar18. ± 4.kcal/molPIPECONorwood, Guo, et al., 1989gas phase; Ar+(2P3/2)

Ar+ + helium = (Ar+ bullet helium)

By formula: Ar+ + He = (Ar+ bullet He)

Quantity Value Units Method Reference Comment
Deltar0.60kcal/molEmSpecDehmer and Pratt, 1982gas phase

Ar+ + neon = (Ar+ bullet neon)

By formula: Ar+ + Ne = (Ar+ bullet Ne)

Quantity Value Units Method Reference Comment
Deltar1.8kcal/molPIDehmer and Pratt, 1982gas phase

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes

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

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

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]

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]

Shul, Passarella, et al., 1987
Shul, R.J.; Passarella, R.; Upshulte, B.L.; Keesee, R.G.; Castleman, A.W., Thermal Energy Reactions Invoving Ar+ Monomer and Dimer with N2, H2, Xe, and Kr, J. Chem. Phys., 1987, 86, 8, 4446, https://doi.org/10.1063/1.452718 . [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]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References