Structure and small molecule activation reactivity of a metallasilsesquioxane of divalent ytterbium

The first metallasilsesquioxane of a divalent lanthanide, [Yb{Cy 7 Si 7 O 11 (OSiMe 3 )}(THF)] 2 , 1 , was synthesized and structurally characterized. The Cy 7 Si 7 O 11 (OSiMe 3 ) 2− ligands in 1 bind two Yb( ii ) ions in a bridging mode. The dinuclear complex effects the two-electron reduction of...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2020-08, Vol.56 (63), p.8936-8939
Main Authors: Willauer, Aurélien R, Dabrowska, Anna M, Scopelliti, Rosario, Mazzanti, Marinella
Format: Article
Language:English
Subjects:
Chemical reduction
Crystallography
Format
Molecular structure
NMR
Nuclear magnetic resonance
Ytterbium
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Summary:The first metallasilsesquioxane of a divalent lanthanide, [Yb{Cy 7 Si 7 O 11 (OSiMe 3 )}(THF)] 2 , 1 , was synthesized and structurally characterized. The Cy 7 Si 7 O 11 (OSiMe 3 ) 2− ligands in 1 bind two Yb( ii ) ions in a bridging mode. The dinuclear complex effects the two-electron reduction of azobenzene yielding the Yb( iii ) complex [{Yb(Cy 7 Si 7 O 11 (OSiMe 3 ))(THF) 2 } 2 (PhNNPh)], 2 , and the CO 2 reduction to CO and carbonate. The first metallasilsesquioxane of a divalent lanthanide was synthetized and structurally characterized. The dinuclear Yb( ii ) complex effects the two electrons reduction of azobenzene, and the selective CO 2 reduction to CO and carbonate.
ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc04197a