Abstract
Reaction of CsF with ClF3 leads to Cs[Cl3F10]. It contains a molecular, propeller-shaped [Cl3F10]− anion with a central μ3-F atom and three T-shaped ClF3 molecules coordinated to it. This anion represents the first example of a heteropolyhalide anion of higher ClF3 content than [ClF4]− and is the first Cl-containing interhalogen species with a μ-bridging F atom. The chemical bonds to the central μ3-F atom are highly ionic and quite weak as the bond lengths within the coordinating XF3 units (X = Cl, and also calculated for Br, I) are almost unchanged in comparison to free XF3 molecules. Cs[Cl3F10] 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.
Original language | English |
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Pages (from-to) | 18116-18119 |
Number of pages | 4 |
Journal | Angewandte Chemie - International Edition |
Volume | 59 |
Issue number | 41 |
Early online date | 30 Jun 2020 |
DOIs | |
Publication status | Published - 5 Oct 2020 |
MoE publication type | A1 Journal article-refereed |
Keywords
- density functional theory calculations
- fluorides
- halogens
- interhalogen compound
- X-ray diffraction