Niobium(IV) Iodide
   HOME

TheInfoList



Click Here for Items Related To - Niobium(IV) Iodide
OR:
Niobium(IV) Iodide on:   [Wikipedia]   [Google]   [Amazon]

Niobium(IV) iodide is an iodide of
niobium Niobium is a chemical element with chemical symbol Nb (formerly columbium, Cb) and atomic number 41. It is a light grey, crystalline, and ductile transition metal. Pure niobium has a Mohs hardness rating similar to pure titanium, and it has sim ...
, with the chemical formula of NbI4.


Preparation

Niobium(IV) iodide can be obtained by the decomposition of
niobium(V) iodide Niobium(V) iodide is the inorganic compound with the formula Nb2I10. Its name comes from the compound's empirical formula, NbI5. It is a diamagnetic, yellow solid that hydrolyses readily. The compound adopts an edge-shared bioctahedral structur ...
under a vacuum at 206-270 °C.


Properties

Niobium(IV) iodide is a grey solid that reacts with water. Niobium(IV) iodide is an orthorhombic crystal with space group Cmc21 (No. 36). Its crystal is formed by NbI6 octahedra connected by edges and also contains Nb-Nb bonds. At 348 to 417 °C, the crystal structure of niobium(IV) iodide changes. Niobium(IV) iodide turns into a metal under extremely high pressure.


References

{{Iodides Niobium compounds Iodides