Terbium(III) iodide ( Tb I₃) is an

inorganic In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemist ...

chemical compound A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element ...

Production

Terbium(III) iodide can be produced by reacting terbium and iodine.WebElements
Chemical reactions of the element Terbium
/ref> : An alternative method is reacting terbium and mercury(II) iodide at 500 °C.

Structure

Terbium(III) iodide adopts the

bismuth(III) iodide Bismuth(III) iodide is the inorganic compound with the formula Bi I3. This gray-black salt is the product of the reaction of bismuth and iodine, which once was of interest in qualitative inorganic analysis. Bismuth(III) iodide adopts a disti ...

(BiI₃) crystal structure type, with

octahedral In geometry, an octahedron (plural: octahedra, octahedrons) is a polyhedron with eight faces. The term is most commonly used to refer to the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet a ...

coordination of each Tb³⁺ ion by 6

iodide An iodide ion is the ion I−. Compounds with iodine in formal oxidation state −1 are called iodides. In everyday life, iodide is most commonly encountered as a component of iodized salt, which many governments mandate. Worldwide, iodine de ...

ions.

References

Iodides Terbium compounds Lanthanide halides {{inorganic-compound-stub