xenon dibromide
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| Name =
| IUPACName = Dibromoxenon
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| OtherNames = {{Unbulleted list
| Xenon(II) bromide
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| ImageFile = File:XeBr2.png
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| CASNo = 73378-57-1
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| ChemSpiderID = 2342693
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| PubChem = 3085953
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| SMILES = Br[Xe]Br
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| Section2 = {{Chembox Properties
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| Formula = XeBr2
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| MolarMass = 291.10 g/mol
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| DeltaGf = 32.5 kJ·mol−1{{cite journal |doi=10.1021/jp9825516 |title=Chemical Bonding in XeF2, XeF4, KrF2, KrF4, RnF2, XeCl2, and XeBr2: From the Gas Phase to the Solid State |date=1998 |author=Meng-Sheng Liao |author2=Qian-Er Zhang |journal=The Journal of Physical Chemistry A |volume=102 |page=10647 |issue=52 |bibcode=1998JPCA..10210647L}}
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| Section9 = {{Chembox Related
| OtherAnions = Xenon difluoride
Xenon dichloride
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Xenon dibromide is an unstable chemical compound with the chemical formula XeBr2. It was only produced by the decomposition of iodine-129:{{cite book |author1=A. H. Cockett |author2=K. C. Smith |author3=Neil Bartlett |title=The Chemistry of the Monatomic Gases |publisher=Elsevier Science |isbn=9781483157368 |page=267 |language=English |format=Ebook |url=https://books.google.com/books?id=0QFPDAAAQBAJ |date=2013}}{{cite journal |author1=G. J. Perlow |author2=Hiroyuki Yoshida |title=Studies with the Mössbauer Effect of the Formation of Xenon Bromides in Beta Decay |journal=The Journal of Chemical Physics |date=1968 |volume=49 |issue=4 |pages=1474–1478 |doi=10.1063/1.1670267 |language=en}}
:129IBr2– → XeBr2 + e–
Attempts to prepare this compound by combining elemental xenon and bromine only resulted in the XeBr radical.{{cite journal |author1=Shuaibov, A.K. |author2=K. C. Smith |author3=Neil Bartlett |title=A Broadband Excimer-Halogen Emitter Utilizing Xenon Bromide and Iodide. |journal=High Temperature |date=2004 |volume=42 |issue=4 |pages=645–647 |doi=10.1023/B:HITE.0000039995.15986.ec |publisher=Springer Link |s2cid=122335160 |language=English}} This compound is expected to be less stable than xenon difluoride and xenon dichloride. It is also expected to decompose to xenon and bromine.