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| Names | |
|---|---|
| IUPAC name Dibromine trioxide | |
| Other names
Bromine trioxide Bromine bromate | |
| Identifiers | |
| CAS Number | |
| 3D model (JSmol) | |
| ChemSpider | |
| PubChem CID | |
InChI
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SMILES
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| Properties | |
| Chemical formula | Br2O3 |
| Molar mass | 207.806 g/mol |
| Appearance | orange needles |
| Melting point | decomposes around −40°C |
| Structure | |
| Crystal structure | monoclinic |
| Space group | P21/c |
| Lattice constant | a = 1186.6 pm, b = 762.9 pm, c = 869.3 pmα = 90°, β = 106.4°, γ = 90° |
| 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 , 100 kPa).
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Infobox references
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Dibromine trioxide is the chemical compound composed of bromine and oxygen with the formula Br2O3. It is an orange solid that is stable below −40 °C. It has the structure Br−O−BrO2 (bromine bromate). It was discovered in 1993. The bond angle of Br−O−Br is 111.7°, the bond angle of O−Br=O is 103.1°, and the bond angle of O=Br=O is 107.6°. The Br−OBrO2 bond length is 1.845 Å, the O−BrO2 bond length is 1.855 Å and the Br=O bond length is 1.612 Å.
Reactions
Dibromine trioxide can be prepared by reacting a solution of bromine in dichloromethane with ozone at low temperatures.
It disproportionates in alkali solutions to Br
and BrO
3.
References
- Perry, Dale L.; Phillips, Sidney L. (1995), Handbook of Inorganic Compounds, CRC Press, p. 255, ISBN 0-8493-8671-3, retrieved 2015-08-25
- ^ Kuschel, Raimund; Seppelt, Konrad (1993). "Brombromat Br2O3". Angewandte Chemie. 105 (11). Wiley: 1734–1735. doi:10.1002/ange.19931051141. ISSN 0044-8249.
- ^ Henderson, K. M. Mackay; R. A. Mackay; W. (2002). Introduction to modern inorganic chemistry (6th ed.). Cheltenham: Nelson Thornes. ISBN 9780748764204.
{{cite book}}: CS1 maint: multiple names: authors list (link) - Jansen, Martin; Kraft, Thorsten (1997). "The Structural Chemistry of Binary Halogen Oxides in the Solid State". Chemische Berichte. 130 (3). Wiley: 307–316. doi:10.1002/cber.19971300302. ISSN 0009-2940.
- ^ Wiberg, Egon (2001). Wiberg, Nils (ed.). Inorganic chemistry (1st ed.). San Diego, Calif.: Academic Press. p. 464. ISBN 9780123526519.
| Bromine compounds | |
|---|---|
| Br(−I) | |
| Br(−I,I) | |
| Br(I) | |
| Br(II) | |
| Br(I,V) | |
| Br(III) | |
| Br(IV) | |
| Br(V) | |
| Br(VII) | |
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