Tellurium tetrabromide
| Identifiers | |
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3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.030.070 |
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PubChem CID
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| Properties | |
| TeBr4 | |
| Molar mass | 447.22 g/mol |
| Appearance | yellow-orange crystals |
| Density | 4.3 g/cm3, solid |
| Melting point | 388 °C (730 °F; 661 K) |
| Boiling point | decomposes at 420 °C (788 °F; 693 K) |
| Structure | |
| monoclinic | |
| Hazards | |
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EU classification (DSD) (outdated)
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not listed |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Tellurium tetrabromide (TeBr4) is an inorganic chemical compound. It has a similar tetrameric structure to TeCl4. It can be made by reacting bromine and tellurium. In the vapour TeBr4 dissociates:
It is a conductor when molten, dissociating into the ions TeBr3+ and Br− Solutions in benzene and toluene are non conducting and TeBr4 is present as the tetramer, Te4Br16. In solvents with donor properties such as acetonitrile, CH3CN ionic complexes are formed which make the solution conducting:
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