Add time:08/16/2019         Source:sciencedirect.com

The syntheses of yttrium and gadolinium-silyl complexes of the form R(Me3Si)2SiMI2(THF)3 (M = Y, Gd; R = Et, SiMe3) through reactions of potassium silyl reagents, KSiR(SiMe3)2(THF)n (R = SiMe3, n = 2; R = Et, n = 0.5), with the appropriate metal halide precursors are described. The complexes are shown to react with protic compounds, HX (X = H, OH, OtBu), in protonolysis reactions releasing the respective silane. The metal-silyl complexes also react with 2,6-dimethylphenyl isocyanide to yield the metallazirine products and with carbodiimides to generate amidinate complexes. Eleven of the twelve complexes have been characterized using X-ray diffraction, with three exceedingly rare non-Cp containing rare earth metal-silyl structures among those described.

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