An N-heterocyclic silylene-stabilized digermanium(0) complex

Yu Liang Shan; Wai Leung Yim; Cheuk Wai So

doi:10.1002/anie.201408347

An N-heterocyclic silylene-stabilized digermanium(0) complex

Yu Liang Shan, Wai Leung Yim, Cheuk Wai So

Research output: Contribution to journal › Article › peer-review

48 Citations (Scopus)

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 Si^II-Ge^II 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 silylenestabilized 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.

Original language	English
Pages (from-to)	13155-13158
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	53
Issue number	48
DOIs	https://doi.org/10.1002/anie.201408347
Publication status	Published - Nov 24 2014
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

ASJC Scopus Subject Areas

Catalysis
General Chemistry

Keywords

Carbene homologues
Density functional calculations
Germanium
Silicon
Zero oxidation state

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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 silylenestabilized 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.",

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author = "Shan, \{Yu Liang\} and Yim, \{Wai Leung\} and So, \{Cheuk Wai\}",

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doi = "10.1002/anie.201408347",

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AU - Shan, Yu Liang

AU - Yim, Wai Leung

AU - So, Cheuk Wai

PY - 2014/11/24

Y1 - 2014/11/24

N2 - 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 silylenestabilized 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.

AB - 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 silylenestabilized 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.

KW - Carbene homologues

KW - Density functional calculations

KW - Germanium

KW - Silicon

KW - Zero oxidation state

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An N-heterocyclic silylene-stabilized digermanium(0) complex

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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