A low-coordinate platinum(0)-germylene for E–H bond activation and catalytic hydrodehalogenation

Sonia Bajo, Enrique Soto, Marta Fernández-Buenestado, Joaquín López-Serrano () and Jesús Campos ()
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Sonia Bajo: Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)
Enrique Soto: Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)
Marta Fernández-Buenestado: Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)
Joaquín López-Serrano: Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)
Jesús Campos: Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Pairing transition metals and heavier tetrylenes (Si, Ge, Sn, Pb) holds great potential for cooperative bond activation and catalysis. In this work, we investigate the reactivity of a low-coordinate Pt(0)/Ge(II) system that emerges from the reaction between the monoligated platinum(0) precursor [(PMe2ArDipp2)Pt(olefin)] with germylene dimer [ArDipp2GeCl]2 (where ArDipp2 = C6H3−2,6-(C6H3−2,6-iPr2)2). The resulting complex reveals ability for cooperative bond activation. Stoichiometric reactions with dihydrogen, water, methanol, ammonia and alkynes unveil the formation of Pt(II)-germyl compounds, characterized by distinct isomeric forms, whose flexibility derives from the particularly low-coordination. We explore its catalytic potential in the hydrodehalogenation of aliphatic, aromatic and main-group halides under dihydrogen atmosphere using both thermal and photochemical conditions, demonstrating promising conversions even for more challenging alkyl chlorides.

Date: 2024
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DOI: 10.1038/s41467-024-53940-9

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