Activation and Catalytic Degradation of SF<sub>6</sub> and PhSF<sub>5</sub> at a Bismuth Center
Vanessa A. Béland, Nils Nöthling, Markus Leutzsch, Josep Cornellà
Abstract
High Resolution Image Download MS PowerPoint Slide In this work, we report the catalytic degradation of SF 6 and PhSF 5 using N, C, N pincer bismuthinidene complexes ( 1 and 5 ). Exposure of SF 6 and PhSF 5 to 1 results in the reduction of the S(VI) substrates and concomitant formation of Bi(III) and Bi(II) compounds, which were isolated and characterized. The oxidized bismuth-based products were demonstrated to undergo reduction with PMe 3, recovering the starting complex 1 . Having established a synthetic redox cycle, the catalytic degradation of SF 6 and PhSF 5 was developed through ligand optimization to 5, leading to a 528 TON for SF 6 and the first reported TON for PhSF 5 (3.2).