Selenium dibromide

Selenium dibromide is a compound made of one selenium and two bromine atoms. It is unstable. No solid form of the compound has been discovered but it is a component of the equilibria in the vapour above selenium tetrabromide (SeBr₄) and in nonaqueous solutions. In acetonitrile solution, selenium reacts with SeBr₄ to form an equilibrium mixture containing SeBr₂, Se₂Br₂ and Br₂. This covalent compound has a bent molecular geometry in the gas phase.

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