2020/07/01 by Benjamin Scheibe, Antti J. Karttunen, Ulrich Müller +1 · 1 citation
Chemistry · Environmental Science · #Inorganic Fluorides and Related Compounds #Chemical Synthesis and Characterization #Crystallography and molecular interactions
paper · pdf · doi:10.1002/anie.202007019
openalex publication_date 2020/07/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Abstract Reaction of CsF with ClF 3 leads to Cs[Cl 3 F 10 ]. It contains a molecular, propeller‐shaped [Cl 3 F 10 ] − anion with a central μ 3 ‐F atom and three T‐shaped ClF 3 molecules coordinated to it. This anion represents the first example of a heteropolyhalide anion of higher ClF 3 content than [ClF 4 ] − and is the first Cl‐containing interhalogen species with a μ‐bridging F atom. The chemical bonds to the central μ 3 ‐F atom are highly ionic and quite weak as the bond lengths within the coordinating X F 3 units (X = Cl, and also calculated for Br, I) are almost unchanged in comparison to free X F 3 molecules. Cs[Cl 3 F 10 ] crystallizes in a very rarely observed A [5] B [5] structure type, where cations and anions are each pseudohexagonally close packed, and reside, each with coordination number five, in the trigonal bipyramidal voids of the other.