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Selenium tetrabromide

Chemical compound From Wikipedia, the free encyclopedia

Selenium tetrabromide
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Selenium tetrabromide is an inorganic compound with a chemical formula SeBr4.

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Preparation

Selenium tetrabromide could be produced by mixing elemental bromine and selenium:[2][3]

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Properties

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Selenium tetrabromide exists in two polymorphs, the trigonal, black α-SeBr4 and the monoclinic, orange-reddish β-SeBr4, both of which feature tetrameric cubane-like Se4Br16 units but differ in how they are arranged.[1] It dissolves in carbon disulfide, chloroform and ethyl bromide, but decomposes in water,[4] so that it produces selenous acid in wet air.

The compound is only stable under a bromine-saturated atmosphere; gas phase measurements of the gas density indicate that the compound decomposes into selenium monobromide and bromine.[3]

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References

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