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.^[1] In acetonitrile solution, selenium reacts with SeBr₄ to form an equilibrium mixture containing SeBr₂, Se₂Br₂ and Br₂.^[2] This covalent compound has a bent molecular geometry in the gas phase.^[3]

Selenium dibromide

Names
IUPAC name Bromo selenohypobromite
Systematic IUPAC name Selenium dibromide
Identifiers
CAS Number	22987-45-7 Y
3D model (JSmol)	Interactive image
PubChem CID	140977
UNII	6WRB0BWV8E Y
CompTox Dashboard (EPA)	DTXSID30177532
InChI InChI=1S/Br2Se/c1-3-2
SMILES [Se](Br)Br
Properties
Chemical formula	Br2Se
Molar mass	238.779 g·mol−1
Related compounds
Other anions	Selenium dichloride, SeCl2
Other cations	Sulfur dibromide, SBr2
Related compounds	Selenium tetrabromide, SeBr4
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references