Argon dimer
- Formula: Ar2
- Molecular weight: 79.896
- IUPAC Standard InChI: InChI=1S/2Ar
- IUPAC Standard InChIKey: XMPZLAQHPIBDSO-UHFFFAOYSA-N
- CAS Registry Number: 12595-59-4
- Chemical structure:
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Gas phase ion energetics 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:
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
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 14.501 ± 0.025 | PI | Dehmer and Pratt, 1982 | T = 0K; LBLHLM |
| 14.476 ± 0.026 | PI | Dehmer and Poliakoff, 1981 | LLK |
| 15.2 ± 0.2 | EI | Helm, Stephan, et al., 1979 | LLK |
| 14.54 ± 0.02 | PI | Ng, Trevor, et al., 1977 | LLK |
| 14.44 | PI | Moseley, Saxon, et al., 1977 | LLK |
| 14.5 ± 0.2 | EI | Munson, Field, et al., 1962 | RDSH |
| 15.548 ± 0.003 | PE | Pradeep, Niu, et al., 1993 | Vertical value; LL |
| 15.55 ± 0.025 | PE | Dehmer and Dehmer, 1978 | Vertical value; LLK |
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.
Dehmer and Pratt, 1982
Dehmer, P.M.; Pratt, S.T.,
Photoionization of argon clusters,
J. Chem. Phys., 1982, 76, 843. [all data]
Dehmer and Poliakoff, 1981
Dehmer, P.M.; Poliakoff, E.D.,
Photoionization of the Ar2 dimer,
Chem. Phys. Lett., 1981, 77, 326. [all data]
Helm, Stephan, et al., 1979
Helm, H.; Stephan, K.; Mark, T.D.,
Electron-impact ionization of Ar2, ArKr, Kr2, KrXe, and Xe2,
Phys. Rev. A:, 1979, 19, 2154. [all data]
Ng, Trevor, et al., 1977
Ng, C.Y.; Trevor, D.J.; Mahan, B.H.; Lee, Y.T.,
Photoionization studies of the Kr2 and Ar2 van der Waals molecules,
J. Chem. Phys., 1977, 66, 446. [all data]
Moseley, Saxon, et al., 1977
Moseley, J.T.; Saxon, R.P.; Huber, B.A.; Cosby, P.C.; Abouaf, R.; Tadjeddine, M.,
Photofragment spectroscopy and potential curves of Ar2+,
J. Chem. Phys., 1977, 67, 1659. [all data]
Munson, Field, et al., 1962
Munson, M.S.B.; Field, F.H.; Franklin, J.L.,
High-pressure mass spectrometric study of reactions of rare gases with N2 and CO,
J. Chem. Phys., 1962, 37, 1790. [all data]
Pradeep, Niu, et al., 1993
Pradeep, T.; Niu, B.; Shirley, D.A.,
Photoelectron spectroscopy of rare gas dimers revisited: Vibrationally resolvedphotoelectron spectrum of argon dimer,
J. Chem. Phys., 1993, 98, 5269. [all data]
Dehmer and Dehmer, 1978
Dehmer, P.M.; Dehmer, J.L.,
Photoelectron spectra of Ar2 and Kr2 and dissociation energies of the rate gas dimer ions,
J. Chem. Phys., 1978, 69, 125. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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