| Zirconium(IV) bromide | |
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Other names
zirconium tetrabromide |
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| Identifiers | |
| CAS number | 13777-25-8 |
| ChemSpider | 75549 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | ZrBr4 |
| Molar mass | 410.86 g/mol |
| Appearance | off-white powder |
| Density | 4.201 g/cm3, solid |
| Melting point |
450 °C |
| Boiling point |
sublimes |
| Solubility in water | reacts with water |
| Structure | |
| Crystal structure | Cubic, cP40 |
| Space group | P-43m, No. 205 |
| Hazards | |
| EU classification | not listed |
| NFPA 704 |
0
3
2
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| Related compounds | |
| Related compounds | Zirconium(IV) chloride Titanium tetrabromide |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Zirconium(IV) bromide is the chemical compound with the formula ZrBr4. This colorless solid is the principal precursor to other Zr–Br compounds. It is prepared by the action of bromine on zirconium powder and purified by sublimation.
Its structure is polymeric with octahedral ZrBr6 centers. The structure can also be described as cubic close-packed, with one fourth of the octahedral holes filled.
In the gas phase, ZrBr4 is tetrahedral.[1]
Like related tetrahalides of Titanium and Hf, ZrBr4 hydrolyzes in air to give oxy-halides, with release of hydrogen bromide.
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