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The development of group 15 Lewis acids is an area of active investigation that has led to numerous advances in anion sensing and catalysis. While phosphorus has drawn considerable attention, emerging research shows that organoantimony(III) reagents may also act as potent Lewis acids. Comparison of the properties of SbPh3, Sb(C6F5)3, and SbArF3 with those of their tetrachlorocatecholate analogues...
Fluoride anion complexation impacts a number of areas ranging from sensing to nucleophilic fluorination chemistry. Described here is a new bidentate Lewis acid consisting of two stiborane units connected by a 1,8‐triptycenediyl backbone. This neutral derivative captures fluoride with an unprecedented affinity for a neutral, water‐compatible Lewis acid. Structural, spectroscopic and computational studies...
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