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

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 bridg...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2016-10, Vol.52 (81), p.12040-12043
Main Authors: Ivlev, S I, Karttunen, A J, Ostvald, R V, Kraus, F
Format: Article
Language:English
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Summary: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.
ISSN:1364-548X
DOI:10.1039/c6cc06761a