Abstract
Bi Lewis acidic: Donor-free cationic bismuth compounds readily coordinate Lewis basic substrates including arenes, phosphanes, and isonitriles, and degrade the weakly coordinating counter-anion [PF6]–. Counterintuitively, an increase in steric bulk around bismuth can increase the Lewis acidity. In the graphic, a bismuth kraken grabs Lewis basic substrates, solving scientific puzzles about bismuth-based Lewis acidity. More information can be found in the Research Article by C. von Hänisch, C. Lichtenberg and co-workers (DOI: 10.1002/chem.202204012).
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