An N‐Heterocyclic Silylene‐Stabilized Digermanium(0) Complex1. (29th September 2014)

• Record Type: Journal Article
• Authors: Shan, Yu‐Liang; Yim, Wai‐Leung; So, Cheuk‐Wai
• Is Part Of: Angewandte Chemie. Volume 126:Number 48(2014)
• Page Start: 13371
• Page End: 13374
• Publication Date: 2014-09-29
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201408347
• Languages: English
• ISSNs: 0044-8249

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The synthesis of an N‐heterocyclic silylene‐stabilized digermanium(0) complex is described. The reaction of the amidinate‐stabilized silicon(II) amide [LSiN(SiMe₃)₂] (<bold>1</bold>; L=PhC(N<italic>t</italic>Bu)₂) with GeCl₂⋅dioxane in toluene afforded the Si^II–Ge^II adduct [L{(Me₃Si)₂N}Si→GeCl₂] (<bold>2</bold>). Reaction of the adduct with two equivalents of KC₈ in toluene at room temperature afforded the N‐heterocyclic carbene silylene‐stabilized digermanium(0) complex [L{(Me₃Si)₂N}Si→ GeGe←Si{N(SiMe₃)₂}L] (<bold>3</bold>). X‐ray crystallography and theoretical studies show conclusively that the N‐heterocyclic silylenes stabilize the singlet digermanium(0) moiety by a weak synergic donor–acceptor interaction.</p> </abstract>