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Front Cover: Barium‐Catalysed Dehydrocoupling of Hydrosilanes and Borinic Acids: A Mechanistic Insight (Chem. Eur. J. 16/2020)
Author(s) -
Le Coz Erwann,
Zhang Ziyun,
Roisnel Thierry,
Cavallo Luigi,
Falivene Laura,
Carpentier JeanFrançois,
Sarazin Yann
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202000477
Subject(s) - barium , monomer , chemistry , front cover , cover (algebra) , polymer chemistry , medicinal chemistry , organic chemistry , polymer , engineering , mechanical engineering
The mechanism of the barium‐catalysed dehydrocoupling between borinic acids R 2 BOH and hydrosilanes HSiR’ 3 that generate borasiloxanes R 2 BO‐SiR’ 3 has been elucidated by teams at ISCR Rennes (France) and KAUST (Saudi Arabia) upon combination of experimental and computational data. The analysis shows that these chemoselective reactions are mediated by dinuclear catalytically active barium‐boryloxide species, regardless of the actual nuclearity of the precatalyst, monomeric as in [Ba(OB{CH(SiMe 3 ) 2 } 2 ) 2 ], or dimeric as in [Ba{N(SiMe 3 ) 2 }OB{CH(SiMe 3 ) 2 } 2 ] 2 and [Ba{N(SiMe 3 ) 2 } 2 ] 2 . More information can be found in the Full Paper by L. Falivene, Y. Sarazin et al. on page 3535.