Br2F7 - and Br3F10 -: Peculiar anions showing μ2- and μ3-bridging F-atoms

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Research units

  • University of Marburg
  • Tomsk Polytechnic University


RbCl and CsCl react with BrF3 yielding the corresponding decafluoridotribromates(iii), MBr3F10 (M = Rb, Cs), which were structurally characterized for the first time. The Br3F10 - anion is surprisingly not linear but contains a μ3-bridging fluorine atom and seems to be the first example of μ3-F bridging of Br atoms. The compounds are highly reactive and cannot be handled in glassware. As for the tetrafluoridobromates themselves, they are powerful oxidizers and thus suitable for the dry-chemical recycling of precious metals and additionally feature a significantly higher BrF3 content.


Original languageEnglish
Pages (from-to)12040-12043
Number of pages4
JournalChemical Communications
Issue number81
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

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