Ytterbium(II) fluorideYtterbium fluoride is a binary inorganic compound of ytterbium and fluorine with the chemical formula.SynthesisYtterbium fluoride can be obtained by reacting ytterbium(III) fluoride with ytterbium or hydrogen.Physical propertiesYtterbium fluoride is a gray solid and crystallizes in the so-called fluorite type analogous to calcium fluoride with a unit cell a axis of 559.46 pm. In the crystal structure of ytterbium fluoride, the Yb2+ cation is surrounded by eight F− anions in the form of a cube, which is tetrahedrally surrounded by four Yb2+.