Tellurium tetrabromide

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Name = Tellurium tetrabromide
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ImageName = Tellurium tetrabromide
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Section1 = Chembox Identifiers
CASNo = 10031-27-3
Section2 = Chembox Properties
Formula = TeBr₄
MolarMass = 447.22 g/mol
Appearance = yellow-orange crystals
Density = 4.3 g/cm³, solid
MeltingPt = 388°C
BoilingPt = decomposes @420°C
Section3 = Chembox Structure
CrystalStruct = monoclinic
Section7 = Chembox Hazards
EUClass = not listed

Tellurium tetrabromide (TeBr₄) is an inorganic chemical compound. It has a similar tetrameric structure to TeCl₄."Inorganic Chemistry",Egon Wiberg, Arnold Frederick Holleman Elsevier 2001 ISBN 0123526515] It can be made by reacting bromine and tellurium. [Greenwood&Earnshaw] . In the vapour TeBr₄ dissociates ::TeBr₄ → TeBr₂ + Br₂It 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⁻

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