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Tungsten(VI) oxytetrabromide

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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/h41H;;/q;;;;;+4/p-4 Key: KKUANYDOAOHBGB-UHFFFAOYSA-J InChI=1S/4BrH.O.W/h41H;;/q;;;;;+4/p-4
SMILES O=[W](Br)(Br)(Br)Br
Properties
Chemical formula	WOBr₄
Molar mass	519.46 g·mol⁻¹
Appearance	red crystals
Density	5.5 g/cm³
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
Otheranions	Tungsten(VI) oxytetrafluoride Tungsten(VI) oxytetrachloride
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references

Chemical compound

Tungsten(VI) oxytetrabromide is theinorganic compound with the formulaW O Br₄. This a red-brown,hygroscopic solidsublimes at elevated temperatures. It formsadducts withLewis bases. The solid consists of weakly associatedsquare pyramidal monomers.^[2] The relatedtungsten(VI) oxytetrachloride has been more heavily studied. The compound is usually classified as anoxyhalide.

It can be produced by the reaction oftungsten hexabromide andtungsten trioxide:^[3]

2 WBr₆ + WO₃ → 3 WOBr₄

^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.
^Hess, H.; Hartung, H. (1966). "Die Kristallstruktur von Wolframoxidchlorid WOCl₄ und Wolframoxidbromid WOBr₄".Z. Anorg. Allg. Chem.34 (3–4):157–166.Bibcode:1966ZAACh.344..157H.doi:10.1002/zaac.19663440306.
^P.C. Crouch; G.W.A. Fowles; R.A. Walton (1970). "The high yield synthesis of the tungsten (VI) oxyhalides WOCl4, WOBr4 and WO2Cl2 and some observations on tungsten(VI) bromide and tungsten(V) chloride".Journal of Inorganic and Nuclear Chemistry.32 (1):329–333.doi:10.1016/0022-1902(70)80475-4.