Dibromine pentoxide

Dibromine pentoxide is the chemical compound composed of bromine and oxygen with the formula Br₂O₅. It is a colorless solid that is stable below −20 °C. It has the structure O₂Br−O−BrO₂, the Br−O−Br bond is bent with bond angle 121.2°. Each BrO₃ group is pyramidal with the bromine atom at the apex.^[2]

Dibromine pentoxide

Names
IUPAC name Dibromine pentoxide
Other names Bromine pentoxide
Identifiers
CAS Number	58572-43-3 Y
3D model (JSmol)	Interactive image
ChemSpider	103875839
PubChem CID	15779615
InChI InChI=1S/Br2O5/c3-1(4)7-2(5)6 Key: NWWZVGMDNVSHDB-UHFFFAOYSA-N
SMILES O=[Br](=O)O[Br](=O)=O
Properties
Chemical formula	Br2O5
Molar mass	239.805 g/mol
Appearance	colorless solid
Melting point	decomposes around −20°C[1]
Related compounds
Other anions	Bromine dioxide Bromine trifluoride Bromine pentafluoride
Other cations	Oxygen difluoride Dichlorine monoxide Chlorine dioxide Iodine dioxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N (what is YN ?) Infobox references

Preparation

Dibromine pentoxide can be prepared by reacting a solution of bromine in dichloromethane with ozone at low temperatures and recrystallized from propionitrile.^[1][2]