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Hydrosilylation of alkynes generally yield vinylsilanes, which are inert to the further hydrosilylation because of the steric effects. Reported here is the first successful dihydrosilylation of aryl‐ and silyl‐substituted internal alkynes enabled by a rare‐earth ate complex to yield geminal bis‐ and tris(silanes), respectively. The lanthanum bis(amido) ate complex supported by an ene‐diamido ligand...
Agostische Silaniminkomplexe: Aus [Yb{N(SiMe3)2}2(thf)2] und ArNHSiH3 entstanden der erste Lanthanoid‐Silaniminkomplex, [{ArNSiH[N(SiMe3)2]}2Yb2] (siehe Bild), der einen planaren Yb2Si2‐Kern mit signifikanten α‐(SiH)⋅⋅⋅Yb‐Wechselwirkungen aufweist, und das monomere homoleptische Lanthanoid(II)‐amid [{ArNSiH2[N(SiMe3)2]}2Yb] mit β‐agostischen (SiH)⋅⋅⋅Yb‐Wechselwirkungen.
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