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Structural Evidence for Undecabromide [Br11]


  • This work has been supported by the Fonds der Chemischen Industrie (FCI). We are grateful to Prof. Ingo Krossing and Prof. Harald Hillebrecht for their generous and continuous support.


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Spreading the charge: Besides iodine, few of the polyhalogen anions have been structurally characterized. Remarkably, the highest known ratio of elements-to-charge has now been found in the undecabromide [Br11]. This new polybromide monoanion has been prepared in pure halogen and was structurally characterized by single-crystal X-ray diffraction, Raman spectroscopy (see picture), and quantum-chemical methods.

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