americium
- Formula: Am
- Molecular weight: 243
- IUPAC Standard InChI: InChI=1S/Am
- IUPAC Standard InChIKey: LXQXZNRPTYVCNG-UHFFFAOYSA-N
- CAS Registry Number: 7440-35-9
- Chemical structure:
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Gas phase ion energetics 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 evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| IE (evaluated) | 5.9738 ± 0.0002 | eV | N/A | N/A | L |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 5.9738 ± 0.0002 | LS | Trautmann, 1994 | LL |
| 5.993 | EVAL | Lide, 1992 | LL |
| 5.96 ± 0.14 | SI | Chetverikov, Gabeskiriya, et al., 1981 | LLK |
| 5.993 ± 0.010 | EVAL | Sugar, 1974 | LLK |
| 5.993 ± 0.010 | S | Sugar, 1973 | LLK |
| 6.0 | S | Fred and Tomkins, 1957 | RDSH |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Trautmann, 1994
Trautmann, N.,
Accurate determination of the first ionization potential of actinides by laser spectroscopy,
J. Alloys Compd., 1994, 213/214, 28. [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]
Chetverikov, Gabeskiriya, et al., 1981
Chetverikov, A.P.; Gabeskiriya, V.Y.; Puchkov, V.V.,
Ionization of uranium, plutonium, americium, rhenium, curium, and californium on a rhenium surface,
Sov. Phys. Tech. Phys., 1981, 26, 73. [all data]
Sugar, 1974
Sugar, J.,
Revised ionization energies of the neutral actinides,
J. Chem. Phys., 1974, 60, 4103. [all data]
Sugar, 1973
Sugar, J.,
Ionization energies of the neutral actinides,
J. Chem. Phys., 1973, 59, 788. [all data]
Fred and Tomkins, 1957
Fred, M.; Tomkins, F.S.,
Preliminary term analysis of Am I and Am II spectra,
J. Opt. Soc. Am., 1957, 47, 1076. [all data]
Notes
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- Symbols used in this document:
IE (evaluated) Recommended ionization energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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