Tungsten(VI) oxytetrabromide is the inorganic compound with the formula . 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. The related tungsten(VI) oxytetrachloride has been more heavily studied. The compound is usually classified as an oxyhalide.
It can be produced by the reaction of tungsten hexabromide and tungsten trioxide:
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