[Br4F21]− - a unique molecular tetrahedral interhalogen ion containing a μ4-bridging fluorine atom surrounded by BrF5 molecules
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Chemical Science, Volume 15, issue 9, pp. 3273-3278
Abstract
The reaction of [NMe4][BrF6] with an excess of BrF5 leads to the compound [NMe4][Br4F21]·BrF5. It features molecular [(μ4-F)(BrF5)4]− anions of tetrahedron-like shape containing central μ4-bridging F atoms coordinated by four BrF5 molecules. It is the most BrF5-rich fluoridobromate anion by mass. Quantum-chemical calculations showed that the μ4-F-Br bonds within the anion are essentially ionic in nature. The compound is the first example where F atoms bridge μ4-like neither to metal nor to hydrogen atoms. It was characterized by Raman spectroscopy and by single-crystal X-ray diffraction. The latter showed surprisingly that its crystal structure is related to the intermetallic half-Heusler compound and structure type MgAgAs.Description
Publisher Copyright: © 2024 The Royal Society of Chemistry.
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Möbs, M, Graubner, T, Karttunen, A J & Kraus, F 2024, '[Br 4 F 21 ] − - a unique molecular tetrahedral interhalogen ion containing a μ 4 -bridging fluorine atom surrounded by BrF 5 molecules', Chemical Science, vol. 15, no. 9, pp. 3273-3278. https://doi.org/10.1039/d3sc06688f