Step-by-Step Introduction of Silazane Moieties at Ruthenium: Different Extents of Ru–H–Si Bond Activation
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https://figshare.com/articles/dataset/Step_by_Step_Introduction_of_Silazane_Moieties_at_Ruthenium_Different_Extents_of_Ru_H_Si_Bond_Activation/2437984
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资源简介:
The coordination of pyridine-2-amino(methyl)dimethylsilane
ligands to ruthenium has afforded access to a family of novel complexes
that display multicenter Ru–H–Si interactions according
to the number of incorporated ligands. The new complexes Ru[κ-Si,N-(SiMe2)N(Me)(C5H4N)](η4-C8H12)(η3-C8H11) (1), Ru2(μ-H)2(H)2[κ-Si,N-(SiMe2)N(Me)(C5H4N)]4 (2), and Ru(H)[κ-Si,N-(SiMe2)N(Me)(C5H4N)]3 (3) were isolated and fully characterized. The complexes exhibit different
degrees of Si–H activation: complete Si–H cleavage,
secondary interactions between the atoms (SISHA), and η2-Si–H coordination. Reversible protonation of 3 leading to the cationic complex [RuH{(η2-H-SiMe2)N(Me)κ-N-(C5H4N)}{κ-Si,N-(SiMe2)N(Me)(C5H4N)}2]+[BArF4]− (5)
was also demonstrated. The coordination modes in these systems were
carefully studied with a combination of X-ray and neutron diffraction
analysis, DFT geometry optimization, and multinuclear NMR spectroscopy.
创建时间:
2016-02-19



