Activation and Catalytic Degradation of SF6 and PhSF5 at a Bismuth Center

Béland, Vanessa A.; Nöthling, Nils; Leutzsch, Markus; Cornella, Josep

doi:10.1021/jacs.4c07044

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Activation and Catalytic Degradation of SF₆ and PhSF₅ at a Bismuth Center

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Béland, Vanessa A.
Research Group Cornellà, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Nöthling, Nils
Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Leutzsch, Markus
Service Department Farès (NMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Cornella, Josep
Research Group Cornellà, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Béland, V. A., Nöthling, N., Leutzsch, M., & Cornella, J. (2024). Activation and Catalytic Degradation of SF₆ and PhSF₅ at a Bismuth Center. Journal of the American Chemical Society, 146(37), 25409-25415. doi:10.1021/jacs.4c07044.

Cite as: https://hdl.handle.net/21.11116/0000-000F-D1E8-F

Abstract

In this work, we report the catalytic degradation of SF₆ and PhSF₅ using N,C,N pincer bismuthinidene complexes (1 and 5). Exposure of SF₆ and PhSF₅ 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 PMe₃, recovering the starting complex 1. Having established a synthetic redox cycle, the catalytic degradation of SF₆ and PhSF₅ was developed through ligand optimization to 5, leading to a 528 TON for SF₆ and the first reported TON for PhSF₅ (3.2).