An N-Heterocyclic Silylene-Stabilized Digermanium(0) Complex
29 Sep 2014

Submitted by (Bold are A*Star Staff): Yu-Liang Shan,Wai-Leung Yim,Cheuk-Wai So

Research Institute: IHPC

Title of Paper: An N-Heterocyclic Silylene-Stabilized Digermanium(0) Complex

Published in: Angewandte Chemie International Edition (Impact Factor: 11.336)

Abstract: 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](1; L = PhC(NtBu)2) with GeCl2·dioxane in toluene afforded the SiII–GeII adduct [L{(Me3Si)2N}Si!GeCl2](2). 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] (3). 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.


Acknowledegment remark in publication: W.-L.Y. acknowledges the A*STAR Computational Resource Centre (A*CRC) for computing facilities.