Suvarna Garge (Editor)

Tellurium tetrabromide

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Formula
  
TeBr4

Density
  
4.3 g/cm³

Melting point
  
388 °C

Pubchem
  
82311

Molar mass
  
447.22 g/mol

Boiling point
  
421 °C

Appearance
  
yellow-orange crystals

Tellurium tetrabromide imgguidechemcomcasimg10031273gif

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:

TeBr4 → TeBr2 + Br2

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:

TeBr4 + 2CH3CN → (CH3CN)2TeBr3+ + Br−

References

Tellurium tetrabromide Wikipedia
(Text) CC BY-SA