Tungsten(VI) oxytetrabromide
{{chembox
| verifiedrevid = 359263380
| Name = Tungsten(VI) oxytetrabromide
| ImageFile =
| ImageName = Tungsten(VI) oxytetrabromide
| OtherNames =
| Section1 = {{Chembox Identifiers
| CASNo = 13520-77-9
| CASNo_Ref = {{cite web |last1=Chambers |first1=Michael |title=ChemIDplus - 0013520779 - KKUANYDOAOHBGB-UHFFFAOYSA-J - Tungsten tetrabromide monoxide - Similar structures search, synonyms, formulas, resource links, and other chemical information. |url=https://chem.nlm.nih.gov/chemidplus/sid/0013520779 |website=chem.nlm.nih.gov |language=en}}{{Cascite|correct|chemIDplus}}
| ChemSpiderID = 64878725
| PubChem = 139485
| InChI = 1S/4BrH.O.W/h4*1H;;/q;;;;;+4/p-4
| StdInChI=1S/4BrH.O.W/h4*1H;;/q;;;;;+4/p-4
| StdInChIKey = KKUANYDOAOHBGB-UHFFFAOYSA-J
| SMILES = O=[W](Br)(Br)(Br)Br
}}
| Section2 = {{Chembox Properties
| Formula = WOBr4
| MolarMass = 519.46 g/mol
| Appearance = red crystals
| Density = 5.5 g/cm3
| MeltingPtC = 277
| BoilingPtC = 327
| Solubility = reacts
}}
| Section3 = {{Chembox Structure
| CrystalStruct = tetragonal
}}
| Section7 = {{Chembox Hazards
}}
| Section8 = {{Chembox Related
| OtherAnions = Tungsten(VI) oxytetrafluoride
Tungsten(VI) oxytetrachloride
| OtherCations =
}}
}}
Tungsten(VI) oxytetrabromide is the inorganic compound with the formula WOBr4. This a red-brown, hygroscopic solid sublimes at elevated temperatures. It forms adducts with Lewis bases. The solid consists of weakly associated square pyramidal monomers.{{cite journal | last1 = Hess | first1 = H. | last2 = Hartung | first2 = H. | year = 1966 | title = Die Kristallstruktur von Wolframoxidchlorid WOCl4 und Wolframoxidbromid WOBr4 | journal = Z. Anorg. Allg. Chem. | volume = 34 | issue = 3–4| pages = 157–166 | doi =10.1002/zaac.19663440306}} The related tungsten(VI) oxytetrachloride has been more heavily studied. The compound is usually classified as an oxyhalide.