Ytterbium(II) fluoride is a binary
inorganic compound
An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bondsthat is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''.
Inorgan ...
of
ytterbium
Ytterbium is a chemical element; it has symbol Yb and atomic number 70. It is a metal, the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. Like the other lanthani ...
and
fluorine
Fluorine is a chemical element; it has Chemical symbol, symbol F and atomic number 9. It is the lightest halogen and exists at Standard temperature and pressure, standard conditions as pale yellow Diatomic molecule, diatomic gas. Fluorine is extre ...
with the chemical formula .
Synthesis
Ytterbium(II) fluoride can be obtained by reacting
ytterbium(III) fluoride with
ytterbium
Ytterbium is a chemical element; it has symbol Yb and atomic number 70. It is a metal, the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. Like the other lanthani ...
or
hydrogen
Hydrogen is a chemical element; it has chemical symbol, symbol H and atomic number 1. It is the lightest and abundance of the chemical elements, most abundant chemical element in the universe, constituting about 75% of all baryon, normal matter ...
.
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Physical properties
Ytterbium(II) fluoride is a gray solid and crystallizes in the so-called
fluorite
Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon.
The Mohs scal ...
type analogous to calcium fluoride with a unit cell ''a'' axis of 559.46 pm. In the crystal structure of ytterbium(II) fluoride, the Yb
2+ cation is surrounded by eight F
− anions in the form of a cube, which is tetrahedrally surrounded by four Yb
2+.
References
Fluorides
Lanthanide halides
Ytterbium(II) compounds
Fluorite crystal structure
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