Author(s) Le Coz, E.; Kahlal, S.; Saillard, J.Y.; Roisnel, T.; Dorcet, V.; Carpentier, J.F.; Sarazin, Y.
Journal Chemistry
Date Published 2019 Aug 14

The first unsupported barium siloxide, the homoleptic dimer [Ba2{μ2-OSi(SiMe3)3}3{OSi(SiMe3)3}], is presented, and its structural features are discussed in the light of DFT computations. This complex, together with the related [Ba{μ2-OSi(SiMe3)3}{N(SiMe3)2}]2 and their parent [Ba{N(SiMe3)2}2]2, mediate the formation of asymmetric siloxanes R3Si-O-SiR'3 through the first case of main group metal-mediated dehydrocoupling of silanols and hydrosilanes. Early kinetic analysis highlights an unusual catalytic manifold.

DOI 10.1002/chem.201903676
ISSN 1521-3765
Citation Le Coz E, Kahlal S, Saillard J-, Roisnel T, Dorcet V, Carpentier J-, et al. Barium siloxides and catalysed formation of Si-O-Si' motifs. Chemistry. 2019.