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Updated: Jan 8, 2026

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration
Published on: December 5, 2019
From oxygen atom transfer by stibine oxide to hydroxo-antimony formation via Lewis acid capture
Thien D Nguyen1, Francisca González-Ortiz1, Ethan Camaret1
1Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019-0065, USA. gyeongjin.park@uta.edu.
Abstract:
We report an improved synthesis of the Lewis acid-stabilized stibine oxide Ph3SbOB(C6F5)3 (1) and show that it undergoes oxygen-atom transfer to PPh3. The reaction proceeds through a discrete Ph3Sb·B(C6F5)3 Lewis pair, which we have isolated and characterized in solution, and which also mediates trace-water activation to give the hydroxo-antimony(III) adduct (2). These results reveal that suitably polarized stibine oxides can access OAT reactivity not observed in bulky analogues, broadening the chemistry of heavy p-block oxides.
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