Low-Coordinate Barium Boryloxides: Synthesis and Dehydrocoupling Catalysis for the Production of Borasiloxanes

Erwann Le Coz; Vincent Dorcet; Thierry Roisnel; Sven Tobisch; J-F Carpentier; Yann Sarazin

Low-Coordinate Barium Boryloxides: Synthesis and Dehydrocoupling Catalysis for the Production of Borasiloxanes

Erwann Le Coz ¹ Vincent Dorcet ² Thierry Roisnel ¹ Sven Tobisch ³ J-F Carpentier Yann Sarazin ¹

1 ISCR - Institut des Sciences Chimiques de Rennes

2 SPCTS - Science des Procédés Céramiques et de Traitements de Surface

Abstract : The first soluble barium boryloxides [Ba]–OB{CH(SiMe3)2} are presented. These mono- or dinuclear complexes feature low coordination numbers, as low as two for [Ba(OB{CH(SiMe3)2}2)2], which is further stabilized by intra- and intermolecular Ba···H3C agostic interactions. Ba–boryloxides and the parent [Ba{N(SiMe3)2}2.(thf)2] catalyze the dehydrocoupling of borinic acids with hydrosilanes, providing borasiloxanes under mild conditions.

Keywords : dehydrocoupling catalysis borasiloxane low-coordinate complex Barium boryloxide

Document type :

Journal articles

Domain :

Chemical Sciences

Chemical Sciences / Coordination chemistry

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Low-Coordinate Barium Boryloxides: Synthesis and Dehydrocoupling Catalysis for the Production of Borasiloxanes

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Low-Coordinate Barium Boryloxides: Synthesis and Dehydrocoupling Catalysis for the Production of Borasiloxanes

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