Tellurium tetrabromide
# Tellurium tetrabromide

Tellurium tetrabromide $(TeBr_4)$ is an inorganic chemical compound. It has a similar tetrameric structure to $TeCl_4.$ It can be made by reacting bromine and tellurium. In the vapour $TeBr_4$ dissociates:

    $TeBr_4$ → $TeBr_2$ + $Br_2$

It is a conductor when molten, dissociating into the ions $TeBr_3^+$ and $Br^−.$ When dissolved in benzene and toluene, $TeBr_4$ is present as the unionized tetramer $Te_4Br_{16}.$ In solvents with donor properties such as acetonitrile, $CH_3CN$ ionic complexes are formed which make the solution conducting:

    $TeBr_4$ + $2CH_3CN$ → $(CH_3CN)_2TeBr_3^+$ + $Br^−$
