Synthesis and characterization of an amidinate-stabilized cis-1,2-disilylenylethene [cis-LSi{C(Ph)=C(H)}SiL] and a singlet delocalized biradicaloid [LSi(μ(2)-C(2)Ph(2))(2)SiL].

@article{Yeong2010SynthesisAC,
  title={Synthesis and characterization of an amidinate-stabilized cis-1,2-disilylenylethene [cis-LSi\{C(Ph)=C(H)\}SiL] and a singlet delocalized biradicaloid [LSi($\mu$(2)-C(2)Ph(2))(2)SiL].},
  author={Hui-Xian Yeong and Hong-Wei Xi and Kok Hwa. Lim and Cheuk-Wai So},
  journal={Chemistry},
  year={2010},
  volume={16 43},
  pages={
          12956-61
        }
}
The synthesis and characterization of novel cis-1,2-disilylenylethene [cis-LSi{C(Ph)=C(H)}SiL] (2; L=PhC(NtBu)(2)) and a singlet delocalized biradicaloid [LSi(μ(2)-C(2)Ph(2))(2)SiL] (3) are described. Compound 2 was prepared by the reaction of [{PhC(NtBu)(2)}Si:](2) (1) with one equivalent of PhC[triple chemical bond]CH in toluene. Compound 3 was synthesized by the reaction of 1 with two equivalents of PhC[triple chemical bond]CPh in toluene. The results suggest that the reaction proceeds… 
35 Citations
Synthesis and characterization of a singlet delocalized 2,4-diimino-1,3-disilacyclobutanediyl and a silylenylsilaimine.
TLDR
The results show that compound 2 possesses singlet biradicaloid character with an extensive electronic delocalization throughout the Si( 2)C(2) four-membered ring and exocyclic C=N bonds.
Elegant approach to spacer arranged silagermylene and bis(germylene) compounds.
TLDR
All reported reactions proceed without changing the oxidation states at the metal centers.
Preparation, characterization, and theoretical analysis of group 14 element(I) dimers: a case study of magnesium(I) compounds as reducing agents in inorganic synthesis.
TLDR
This study highlights the synthetic utility of soluble and easy to prepare magnesium(I) dimers as valuable alternatives to the harsh, and often insoluble, alkali-metal reducing agents that are currently widely employed in the synthesis of low-oxidation-state organometallic/inorganic complexes.
Activation of alkynes by an α-diimine-stabilized Al-Al-bonded compound: insertion into the Al-Al bond or cycloaddition to AlN2C2 rings.
TLDR
Reaction of 1 with phenylacetylene proceeds through cycloaddition of alkynes to the AlN2C2 rings to produce bis(bicyclic) products (3a and 3b).
Amidinate-Stabilized Group 9 Metal-Silicon(I) Dimer and -Silylene Complexes.
TLDR
The coordination chemistry of the amidinate-stabilized silicon(I) dimer toward group 9 metal complexes is described and compounds 2-6 were characterized by NMR spectroscopy and X-ray crystallography.
An amidinate-stabilized germatrisilacyclobutadiene ylide.
TLDR
The synthesis and characterization of new amidinate-stabilized germatrisilacyclobutadiene ylides [L (3)Si(3)GeL'] (L=PhC(NtBu)(2); L'=ËL; Ë=Ge (3), Si (7)) are described, which show that compounds 3 and 7 are not antiaromatic.
Reaction of a Base‐Stabilized Bis(silylene) [PhC(NtBu)2Si]2 with Cyclooctatetraene without Cleavage of the Si–Si Bond
The reaction of the benzamidinato-stabilized bis(silylene) [PhC(NtBu)2Si]2 with cyclooctatetraene resulted in the formation of a colorless compound 7 whithout cleavage of the Si–Si bond of the
Bis(silylenyl)- and bis(germylenyl)-substituted ferrocenes: synthesis, structure, and catalytic applications of bidentate silicon(II)-cobalt complexes.
TLDR
The synthesis of the first isolatable oxygen-bridged bis(silylenes) D and pincer-type bis( silylene) E is described, which underlines that silylene are no longer laboratory curiosities and may provide access to new silicon(II)based functional groups in coordination chemistry toward transition metals.
Reaction of an N-heterocyclic carbene-stabilized silicon(II) monohydride with alkynes: [2+2+1] cycloaddition versus hydrogen abstraction.
TLDR
Mechanistic investigations using an isotope labelling technique and DFT calculations suggest that this reaction occurs through a similar zwitterionic intermediate and subsequent hydrogen abstraction from a second molecule of phenylacetylene.
Synthesis and Characterization of an Amidinate-Stabilized Bisgermylene Oxide and Sulfide
The synthesis and characterization of the amidinate-stabilized bisgermylene oxide and sulfide [L2Ge−E−GeL2] (E = O (2), S (3); L2 = ButC(NAr)2, Ar = 2,6-Pri2C6H3) are described. Compound 2 was
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TLDR
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TLDR
The first reactions of the "digermyne" Ar'GeGeGeAr' with alkynes are reported, and the high reactivity of 1 emphasizes the fundamental differences between the GeGe and CC multiple bonds.
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