An amidinate-stabilized germatrisilacyclobutadiene ylide.

  title={An amidinate-stabilized germatrisilacyclobutadiene ylide.},
  author={Hui-Xian Yeong and Shuhua Zhang and Hong-Wei Xi and Jingdong Guo and Kok Hwa. Lim and Shigeru Nagase and Cheuk-Wai So},
  volume={18 9},
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. Compound 3 was prepared by the reaction of [LSi-SiL] (1) with one equivalent of [LGe-GeL] (2) in THF. Compound 7 was synthesized by the reaction of 2 with excess 1 in THF. The bisamidinate germylene [L(2)Ge:] (4) is a by-product in both reactions. Moreover, compound 7 was prepared by the reaction of 3 with one equivalent of 1… 
Zwitterionic base-stabilized digermadistannacyclobutadiene and tetragermacyclobutadiene.
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A silyliumylidene cation stabilized by an amidinate ligand and 4-dimethylaminopyridine.
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EPR spectroscopy, X-ray crystallography, and theoretical studies show that the germanium center in 2 has two lone pairs of electrons and the radical is delocalized over the germium-containing heterocycle.
Iron Complexes with Stabilized Germylenes: Syntheses and Characterizations
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Amidinate-Stabilized Group 9 Metal-Silicon(I) Dimer and -Silylene Complexes.
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Bis(amidinato)germylenerhodium complexes: synthesis, structure, and density functional theory calculations.
The first monogermylenerhodium complexes stabilized by bulky amidinato ligands on the divalent germanium center have been synthesized and characterized by NMR spectroscopy and X-ray crystallography and the donating ability of the germylene ligand has been assessed.
Bulky arene-bridged bis(amide) and bis(amidinate) complexes of germanium(II) and tin(II).
Reduction of : Ge(Cl)(μ-L4)(Cl)Ge: with KC8 afforded the crystallographically characterised bis(amido/amidinatogermylene) compound, :Ge(μ- L4)2Ge:, which is believed to have formed via a disproportionation process.
Di-μ-oxido-bis[bis(diisopropylacetamidinato)-κN;κ2 N,N′-germanium(IV)]
The title compound, [Ge2(C8H17N2)4O2], crystallizes with imposed twofold symmetry, which allows the monodentate amidinate ligands to be arranged in a cisoid fashion. The independent Ge—O distances
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Intramolecularly stabilized heavier tetrylenes (HTs) are group 14 metalylenes featuring at least one intramolecular DE interaction between a two-electron-donor group (D) and the group 14 atom (E =


Synthesis and Characterization of an Amidinate-Stabilized Siladithiocarboxylate and Its Germanium(II) Complex
The synthesis and characterization of the amidinate-stabilized potassium siladithiocarboxylate [{LSi(S)2}K(THF)2]2 (2, L = PhC(NBut)2) are described. Compound 2 was synthesized by the reaction of
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].
X-ray crystallography and DFT calculations of 3 show that the singlet biradicals are stabilized by the amidinate ligand and the delocalization within the "Si(μ(2)-C(2)Ph(2))( 2)Si" six-membered ring.
An ylide-like phosphasilene and striking formation of a 4π-electron, resonance-stabilized 2,4-disila-1,3-diphosphacyclobutadiene.
The first N-donor-stabilized phosphasilene LSi(SiMe(3))═PSiMe(3) (L = PhC(NtBu)(2)) has been synthesized in 87% yield through 1,2-silyl migration of the (Me(3)Si)(2)P-substituted, N-heterocyclic
Tetrasilacyclobutadiene (tBu2MeSi)4Si4 : A new ligand for transition-metal complexes
The anionic complex of [tetrakis(di-tert-butylmethylsilyl) tetrasilacyclobutadiene]dicarbonylcobalt, [(R4Si4)Co(CO)2]-·K+ (R = SiMetBu2) 2-·K+, was synthesized by the reaction of
A Planar Rhombic Charge-Separated Tetrasilacyclobutadiene
The rhombic-shaped charge-separated singlet state of compound 1 thus stabilizes its cyclic 4π-electron antiaromaticity in a manner that contrasts sharply with the bond-length alternation, characterizing the rectangular distortion of carbon-based CBD.
Formation of a donor-stabilized tetrasilacyclobutadiene dication by a Lewis acid assisted reaction of an N-heterocyclic chloro silylene.
The first donor-stabilized tetrasilacyclobutadiene dication species has been synthesized and fully characterized and its four-membered Si(4) core consists of two N-donor stabilized silylium subunits and two silylene-like moieties.
Synthesis, structure, and theoretical investigation of amidinato supported 1,4-disilabenzene.
Reaction of LSi-SiL (1) (L = PhC(NtBu)(2)) with diphenyl alkyne gave the first example of a room temperature stable 1,4-disilabenzene. The compound was characterized by means of single crystal X-ray
(η5-Cyclopentadienyl)(η4-tetrasila-and η4-trisilagermacyclobutadiene)cobalt : Sandwich Complexes Featuring Heavy Cyclobutadiene Ligands
(η5-Cyclopentadienyl)(η4-tetrasilacyclobutadiene)cobalt{[(η4-R4Si4)CoCp], 2} and (η5-cyclopentadienyl)(η4-trisilagermacyclobutadiene)cobalt {[(η4-R4Si3Ge)CoCp], 4} (R = SiMetBu2) were synthesized by
Tetrahedrane and Cyclobutadiene
Tetra-tert-butyltetrahedrane—a useless molecule? In the first part of this progress report an attempt is made to answer this provoking question in order that the reader can evaluate why it is
A remarkable base-stabilized bis(silylene) with a silicon(I)-silicon(I) bond.
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