ytterbium

Formula: Yb
Molecular weight: 173.054
IUPAC Standard InChI: InChI=1S/Yb
IUPAC Standard InChIKey: NAWDYIZEMPQZHO-UHFFFAOYSA-N
CAS Registry Number: 7440-64-4
Chemical structure:
This structure is also available as a 2d Mol file
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Gas phase ion energetics data

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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

View reactions leading to Yb⁺ (ion structure unspecified)

Quantity	Value	Units	Method	Reference	Comment
IE (evaluated)	6.25416	eV	N/A	N/A	L

Ionization energy determinations

IE (eV)	Method	Reference	Comment
6.25416	EVAL	Lide, 1992	LL
6.25389 ± 0.00003	S	Martin, Zalubas, et al., 1978	LLK
6.2 ± 0.1	EI	Ackermann, Rauh, et al., 1976	LLK
6.3 ± 0.3	EI	Guido and Balducci, 1972	LLK
6.25388 ± 0.00002	S	Camus and Tomkins, 1969	RDSH
6.254	S	Camus and Tomkins, 1969	RDSH
6.25 ± 0.01	S	Parr and Elder, 1968	RDSH
6.04 ± 0.04	SI	Hertel, 1968	RDSH
5.90 ± 0.10	EI	Zmbov and Margrave, 1966	RDSH
6.25 ± 0.02	S	Reader and Sugar, 1966	RDSH
6.69 ± 0.08	SI	Dresser and Hudson, 1965	Unpublished result of P. Sivgals and D.E. Hudson; RDSH

References

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Lide, 1992
Lide, D.R. (Editor), Ionization potentials of atoms and atomic ions in Handbook of Chem. and Phys., 1992, 10-211. [all data]

Martin, Zalubas, et al., 1978
Martin, W.C.; Zalubas, R.; Hagan, L., Atomic energy levels - the rare earth elements, Natl. Stand. Ref. Data Ser. (U.S. Natl. Bur. Stand.), 1978, 60. [all data]

Ackermann, Rauh, et al., 1976
Ackermann, R.J.; Rauh, E.G.; Thorn, R.J., The thermodynamics of ionization of gaseous oxides; the first ionization potentials of the lanthanide metals and monoxides, J. Chem. Phys., 1976, 65, 1027. [all data]

Guido and Balducci, 1972
Guido, M.; Balducci, G., Dissociation energy of Yb₂, J. Chem. Phys., 1972, 57, 5611. [all data]

Camus and Tomkins, 1969
Camus, P.; Tomkins, F.S., Spectre d'absorption de Yb I, J. Phys. (Paris), 1969, 30, 545. [all data]

Parr and Elder, 1968
Parr, A.C.; Elder, FA., Photoionization of ytterbium: 1350-2000 K, J. Chem. Phys., 1968, 49, 2665. [all data]

Hertel, 1968
Hertel, G.R., Surface ionization. III. The first ionization potentials of the lanthanides, J. Chem. Phys., 1968, 48, 2053. [all data]

Zmbov and Margrave, 1966
Zmbov, K.F.; Margrave, J.L., The first ionization potentials of samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, and ytterbium by the electron-impact method, J. Phys. Chem., 1966, 70, 3014. [all data]

Reader and Sugar, 1966
Reader, J.; Sugar, J., Ionization energies of the neutral rare earths, J. Opt. Soc. Am., 1966, 56, 1189. [all data]

Dresser and Hudson, 1965
Dresser, M.J.; Hudson, D.E., Surface ionization of some rare earths on tungsten, Phys. Rev., 1965, 137, A673. [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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