![]() | |
Names | |
---|---|
Other names Niobium tetraiodide | |
Identifiers | |
3D model (JSmol) | |
| |
| |
Properties | |
I4Nb | |
Molar mass | 600.52425 g·mol−1 |
Appearance | grey solid [1] |
Density | 5.6 g·cm−3 [1] |
Melting point | 503 °C [1] |
reacts [1] | |
Related compounds | |
Other anions | NbF4, NbCl4, NbBr4 |
Other cations | TaI4 |
Related compounds | NbI3, NbI5 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Niobium(IV) iodide is an iodide of niobium, with the chemical formula of NbI4.
Niobium(IV) iodide can be obtained by the decomposition of niobium(V) iodide under a vacuum at 206-270 °C. [2]
Niobium(IV) iodide is a grey solid that reacts with water. [1]
Niobium(IV) iodide is an orthorhombic crystal with space group Cmc21 (No. 36). [3] 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. [4] Niobium(IV) iodide turns into a metal under extremely high pressure. [5]
{{cite book}}
: CS1 maint: location missing publisher (link){{cite book}}
: CS1 maint: location missing publisher (link)