Reaction of 1,2-Disilylbenzene with Bis[1,2-bis(dimethylphosphino)ethane]nickel(0). Isolation and Characterization of the First Silylnickel(IV) Complex

Abstract

The first silylnickel(IV) complex was isolated from the reaction of 1,2-disilylbenzene with a nickel(0) complex and characterized by multinuclear NMR and X-ray structure analysis. Bis(silyl)nickel(II) complexes, intermediates in the formation of the silylnickel(IV) complex, were also characterized by NMR and/or X-ray analysis.

Unexpected Formation of a Molecular Tetraalkyl Nickel Complex from an Olefin/Nickel(0) System

“…[9] a disproportionation reaction at the Ni II stage is sufficient, while the silyl nickel compound 3 [10] is generated by a thermally induced elimination of dihydrogen. In a similar modification for the synthesis of the distorted tetrahedral norbornyl nickel 4 [11] oxidation by air at À60 8C is sufficient.…”

Multinuclear palladium compounds containing palladium centers ligated by five silicon atoms

“…We have found that sterically less demanding chelating silyl ligands are useful in stabilizing silyl transition-metal compounds with high formal oxidation states (15) and reported silylpalladium(IV) (16) and silylnickel(IV) compounds (17). During our effort to synthesize silyl group 10 transition-metal compounds with formal oxidation states exceeding ϩ4, we obtained a trinuclear Pd compound 1 (Fig.…”

Chemie mit substituentenfreien Silicium‐Clustern in Lösung – ein Übergangsmetallkomplex eines Polysilicid‐Anions

“…Bisher ist das einzige geeignete Lösungsmittel flüssiger Ammoniak, [17][18][19] [25] [{1,2-C 6 H 4 (SiH 2 )-(SiH)} 2 Ni 2 (Me 2 PCH 2 CH 2 PMe 2 ) 2 ] 2.210-2.304 , [26] [{1,2-C 6 H 4 (SiH 2 )} 2 Ni(Me 2 PCH 2 CH 2 PMe 2 )] 2.252 und 2.290 . [27] Erste quantenchemische Berechnungen des zentralen…”