| 词条 | Dibromine trioxide |
| 释义 |
| Verifiedfields = changed | Watchedfields = changed | verifiedrevid = | Name = Dibromine trioxide | ImageFile1 = | ImageSize1 = | ImageName1 = | ImageFile2 = | ImageSize2 = | IUPACName = Dibromine trioxide | OtherNames = Bromine trioxide | Section1 = {{Chembox Identifiers | CASNo_Ref = {{cascite|correct|??}} | CASNo = 53809-75-9 | RTECS = | PubChem = | ChemSpiderID_Ref = | ChemSpiderID = | SMILES = BrO[Br](=O)=O | InChI = | InChIKey = | StdInChI_Ref = | StdInChI = | StdInChIKey_Ref = | StdInChIKey = | Section2 = {{Chembox Properties | Formula = Br2O3 | MolarMass = 207.806 g/mol | Appearance = orange needles | Density = | Solubility = | MeltingPt = decomposes around −40°C[1] | BoilingPt = | Section3 = {{Chembox Structure | MolShape = | Coordination = | CrystalStruct = | Dipole = | Section7 = {{Chembox Hazards | NFPA-H = | NFPA-F = | NFPA-R = | EUClass = | RPhrases = | SPhrases = | FlashPt = | Section8 = {{Chembox Related | OtherAnions = Bromine dioxide Bromine trifluoride Bromine pentafluoride | OtherCations = Oxygen difluoride Dichlorine monoxide Chlorine dioxide Iodine dioxide }}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).[2] The Br−O−Br bond is bent with bond angle 111.2° and the Br−O−BrO2 bond length is 1.85Å.[3] ReactionsDibromine trioxide can be prepared by reacting a solution of bromine in dichloromethane with ozone at low temperatures.[2][3] It disproportionates in alkali solutions to Br{{su|p=−}} and BrO{{su|b=3|p=−}}.[3] References1. ^{{Citation | last = Perry | first = Dale L. | author-link = | last2 = Phillips | first2 = Sidney L. | author2-link = | publication-date = | date = | year = 1995 | title = Handbook of Inorganic Compounds | edition = | volume = | series = | publication-place = | place = | publisher = CRC Press | id = | isbn = 0-8493-8671-3 | doi = | oclc = | pages = 255 | url = https://books.google.com/books?id=0fT4wfhF1AsC&pg=PA255&dq=%22Mercury(I)+bromide%22 | accessdate = 2015-08-25}} {{bromine compounds}}{{oxides}}{{inorganic-compound-stub}}2. ^1 {{cite book|last1=Henderson|first1=K. M. Mackay; R. A. Mackay; W.|title=Introduction to modern inorganic chemistry|date=2002|publisher=Nelson Thornes|location=Cheltenham|isbn=9780748764204|edition=6th}} 3. ^1 2 {{cite book|last1=Wiberg|first1=Egon|editor1-last=Wiberg|editor1-first=Nils|title=Inorganic chemistry|date=2001|publisher=Academic Press|location=San Diego, Calif.|isbn=9780123526519|pages=464|edition=1st}} 2 : Bromine compounds|Oxides |
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