|Systematic IUPAC name
Dibromine oxide, bromine monoxide
3D model (JSmol)
|Molar mass||175.807 g/mol|
|Appearance||dark brown solid|
|Melting point||decomposes around −17.5°C|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|(what is ?)|
Dibromine monoxide is the chemical compound composed of bromine and oxygen with the formula Br2O. It is a dark brown solid which is stable below −40°C and is used in bromination reactions. It is similar to dichlorine monoxide, the monoxide of its halogen neighbor one period higher on the periodic table. The molecule is bent, with C2v molecular symmetry. The Br−O bond length is 1.85Å and the Br−O−Br bond angle is 112°, similar to dichlorine monoxide.