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Sensing of Aqueous Fluoride Anions by Cationic Stibine–Palladium Complexes


  • Financial support from the Welch Foundation (A-1423) and the National Science Foundation (CHE-0952912) is gratefully acknowledged.


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Turn on the lantern! The stibine donor ligand of a cationic palladium complex acts as a Lewis acid and reacts with a fluoride anion to afford the corresponding fluorostiboranyl–palladium species (see scheme). Bindung of the fluoride anion to the antimony center induces a change in denticity of the triphosphine unit and leads to a bright-orange trigonal-bipyramidal d8 lantern complex.