Dibromine monoxide
Names | |
---|---|
IUPAC name
Dibromine monoxide
|
|
Other names
Dibromine oxide, bromine monoxide
|
|
Identifiers | |
21308-80-5 | |
Properties | |
Br2O | |
Molar mass | 175.807 g/mol |
Appearance | dark brown solid |
Melting point | decomposes around -17.5°C[1] |
Vapor pressure | {{{value}}} |
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).
|
|
verify (what is ?) | |
Infobox references | |
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.[1] It is similar to dichlorine monoxide, the dioxide 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°.[2][3] A related diatomic molecule bromine monoxide (CAS#15656-19-6 ).
Reactions
Dibromine monoxide can be prepared by reacting bromine vapor or a solution of bromine in carbon tetrachloride with mercury(II) oxide at low temperatures:[1][3]
It can also be formed by thermal decomposition of bromine dioxide[2] or by passing an electrical current through a 1:5 mixture of bromine and oxygen gases.[3]
References
<templatestyles src="Asbox/styles.css"></templatestyles>