Francium
- Formula: Fr
- Molecular weight: 223
- IUPAC Standard InChI: InChI=1S/Fr
- IUPAC Standard InChIKey: KLMCZVJOEAUDNE-UHFFFAOYSA-N
- CAS Registry Number: 7440-73-5
- Chemical structure:
This structure is also available as a 2d Mol file - Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Options:
Gas phase ion energetics data
Go To: Top, NIST Free Links, 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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 4.0712 ± 0.00004 | S | Andreev, Letokhov, et al., 1987 | LBLHLM |
| 3.98 ± 0.10 | S | Finkelnburg and Humbach, 1955 | RDSH |
References
Go To: Top, Gas phase ion energetics data, NIST Free Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Andreev, Letokhov, et al., 1987
Andreev, S.V.; Letokhov, V.S.; Mishin, V.I.,
Laser resonance photoionization spectroscopy of Rydberg levels in Fr,
Phys. Rev. Lett., 1987, 59, 1274. [all data]
Finkelnburg and Humbach, 1955
Finkelnburg, W.; Humbach, W.,
Ionisierungsenergien von Atomen und Atomionen,
Naturwiss., 1955, 42, 35. [all data]
Notes
Go To: Top, Gas phase ion energetics data, NIST Free Links, References
- 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.