Dibromine trioxide
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Names | |
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IUPAC name Dibromine trioxide | |
Other names Bromine trioxide Bromine bromate | |
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Properties | |
Chemical formula | Br2O3 |
Molar mass | 207.806 g/mol |
Appearance | orange needles |
Melting point | decomposes around −40°C[1] |
Structure[2] | |
Crystal structure | monoclinic |
Space group | P21/c |
Lattice constant | a = 1186.6 pm, b = 762.9 pm, c = 869.3 pm α = 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 [77 °F], 100 kPa). ![]() ![]() ![]() Infobox references |
Chemical compound
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).[3] It was discovered at 1993.[2] 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 1.845Å, the O−BrO2 bond length is 1.855Å, and the Br=O bond length is 1.612Å.[4]
Reactions
Dibromine trioxide can be prepared by reacting a solution of bromine in dichloromethane with ozone at low temperatures.[3][5] It disproportionates in alkali solutions to Br−
and BrO−
3.[5]
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
- ^ a b Kuschel, Raimund; Seppelt, Konrad (1993). "Brombromat Br2O3". Angewandte Chemie. 105 (11). Wiley: 1734–1735. doi:10.1002/ange.19931051141. ISSN 0044-8249.
- ^ a b 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.
- ^ a b Wiberg, Egon (2001). Wiberg, Nils (ed.). Inorganic chemistry (1st ed.). San Diego, Calif.: Academic Press. p. 464. ISBN 9780123526519.
- v
- t
- e
- Br−
- CH3Br
- CH2Br2
- CHBr3
- CBr4
- HBr
- C3H5Br
- Br3−
- Br2O3
- BrF3
- BrO2−
- BrO2
- BrF5
- Br2O5
- BrO3−
- BrOF3
- BrO2F
- BrO4−
- BrO3F