Tungsten(VI) oxytetrabromide

Tungsten(VI) oxytetrabromide

Identifiers
CAS Number	13520-77-9[1]^Y[chemIDplus]
3D model (JSmol)	Interactive image
ChemSpider	64878725
PubChem CID	139485
CompTox Dashboard (EPA)	DTXSID701306353
InChI InChI=1S/4BrH.O.W/h4*1H;;/q;;;;;+4/p-4 Key: KKUANYDOAOHBGB-UHFFFAOYSA-J InChI=1S/4BrH.O.W/h4*1H;;/q;;;;;+4/p-4
SMILES O=[W](Br)(Br)(Br)Br
Properties
Chemical formula	WOBr4
Molar mass	519.46 g/mol
Appearance	red crystals
Density	5.5 g/cm^3
Melting point	277 °C (531 °F; 550 K)
Boiling point	327 °C (621 °F; 600 K)
Solubility in water	reacts
Structure
Crystal structure	tetragonal
Related compounds
Other anions	Tungsten(VI) oxytetrafluoride Tungsten(VI) oxytetrachloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references

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.^[2] The related tungsten(VI) oxytetrachloride has been more heavily studied. The compound is usually classified as an oxyhalide.

References

1. Chambers, Michael. "ChemIDplus - 0013520779 - KKUANYDOAOHBGB-UHFFFAOYSA-J - Tungsten tetrabromide monoxide - Similar structures search, synonyms, formulas, resource links, and other chemical information". chem.nlm.nih.gov.
2. Hess, H.; Hartung, H. (1966). "Die Kristallstruktur von Wolframoxidchlorid WOCl₄ und Wolframoxidbromid WOBr₄". Z. Anorg. Allg. Chem. 34 (3–4): 157–166. doi:10.1002/zaac.19663440306.