The Solid-State Structure of SF4: The Final Piece of the Puzzle

Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive, Lethbridge, AB T1K 3M4 (Canada).
Angewandte Chemie International Edition (Impact Factor: 11.26). 07/2013; 52(31). DOI: 10.1002/anie.201302917
Source: PubMed


Solved at last: The crystal structure of solid SF4 , which has a melting point of -121 °C, has been obtained. It exhibits weak intermolecular S⋅⋅⋅F interactions. A similar structural motif was observed within a layer of SF4 in [HNC5 H3 (CH3 )2 (+) ]2 F(-) ⋅⋅⋅SF4 [SF5 (-) ]⋅3 SF4 . The latter structure contains a range of bonding modes between S and F, namely SF5 (-) , F4 S⋅⋅⋅F(-) , F4 S⋅⋅⋅FSF4 (-) , and F4 S⋅⋅⋅FSF3 .

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