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An N‐Heterocyclic Silylene‐Stabilized Digermanium(0) Complex |
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| Authors: | Yu‐Liang Shan Dr Wai‐Leung Yim Dr Cheuk‐Wai So |
| Affiliation: | 1. Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, 637371 (Singapore);2. Institute of High Performance Computing, Agency for Science, Technology, and Research, 1 Fusionopolis Way, No. 16‐16 Connexis, 138632 (Singapore) |
| 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. |
| Keywords: | carbene homologues density functional calculations germanium silicon zero oxidation state |
