Tellurium tetrabromide

{{chembox

| Name = Tellurium tetrabromide

| ImageFile = Te4I16.png

| ImageSize =

| ImageName = Tellurium tetrabromide

| OtherNames =

|Section1={{Chembox Identifiers

| CASNo = 10031-27-3

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 7A29EFJ1AF

| PubChem = 82311

| ChemSpiderID = 74282

| EINECS = 233-090-7

| SMILES = Br[Te](Br)(Br)Br

| StdInChI =1S/Br4Te/c1-5(2,3)4

| StdInChIKey = PTYIPBNVDTYPIO-UHFFFAOYSA-N

}}

|Section2={{Chembox Properties

| Formula = TeBr₄

| MolarMass = 447.22 g/mol

| Appearance = yellow-orange crystals

| Density = 4.3 g/cm³, solid

| MeltingPtC = 388

| MeltingPt_ref = Thermochemical Data of Elements and Compounds, M. Binnewies, E. Milke, Wiley-VCH, 2002, {{ISBN|3-527-30524-6}}

| BoilingPt= decomposes at

| BoilingPtC = 420

}}

|Section3={{Chembox Structure

| CrystalStruct = monoclinic

}}

|Section7={{Chembox Hazards

| GHS_ref={{cite web |title=C&L Inventory |url=https://echa.europa.eu/information-on-chemicals/cl-inventory-database/-/discli/details/10227 |website=echa.europa.eu}}

| GHSPictograms = {{GHS05}}{{GHS06}}

| GHSSignalWord = Danger

| HPhrases = {{H-phrases|301|314}}

| PPhrases = {{P-phrases|260|264|280|301+330+331|303+361+353|304+340|305+351+338|310|321|363|405|501}}

}}

|Section8={{Chembox Related

| OtherAnions = Tellurium tetrafluoride
Tellurium tetrachloride
Tellurium tetraiodide

| OtherCations = Selenium tetrabromide

| OtherCompounds = Ditellurium bromide

}}

}}

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|0-12-352651-5}} It can be made by reacting bromine and tellurium.{{Greenwood&Earnshaw}} In the vapour TeBr₄ dissociates:

:TeBr₄ → TeBr₂ + Br₂

It is a conductor when molten, dissociating into the ions TeBr₃⁺ and Br⁻. When dissolved in benzene and toluene, TeBr₄ is present as the unionized 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⁻