双[μ-N-（叔丁基-二甲基-硅烷基）-N-（吡啶-2-基甲基）酰胺基]-双[甲基钴（II）]
Bis[μ-N-(tert-butyl-dimethyl-silyl)-N-(pyridin-2-ylmeth-yl)amido]-bis-[methyl-cobalt(II)].
作者信息
Malassa Astrid, Agthe Christine, Görls Helmar, Westerhausen Matthias
机构信息
Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität, Jena, Humboldt-Strasse 8, 07743 Jena, Germany.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2012 Sep 1;68(Pt 9):m1167-8. doi: 10.1107/S1600536812032321. Epub 2012 Aug 11.
The green title complex, [Co(2)(CH(3))(2)(C(12)H(21)N(2)Si)(2)], was obtained from bis-{[μ-N-tert-butyl-dimethyl-silyl-N-(pyridin-2-ylmeth-yl)amido]-chloridocobalt(II)} and methyl-lithium in diethyl ether at 195 K via a metathesis reaction. The dimeric cobalt(II) complex exhibits a crystallographic center of inversion in the middle of the Co(2)N(2) ring (average Co-N = 2.050 Å). The Co(II) atom shows a distorted tetra-hedral coordination sphere. The exocyclic Co-N bond length to the pyridyl group shows a similar value of 2.045 (4) Å. The exocyclic methyl group has a rather long Co-C bond length of 2.019 (5) Å.
绿色标题配合物[Co₂(CH₃)₂(C₁₂H₂₁N₂Si)₂]是通过双-{[μ-N-叔丁基-二甲基-硅烷基-N-(吡啶-2-基甲基)酰胺基]-氯化钴(II)}与甲基锂在195 K的乙醚中经复分解反应制得的。二聚钴(II)配合物在Co₂N₂环的中心具有一个晶体学反演中心（平均Co-N = 2.050 Å）。Co(II)原子呈现出一个扭曲的四面体配位球。与吡啶基的环外Co-N键长显示出类似的值，为2.045(4) Å。环外甲基具有相当长的Co-C键长，为2.019(5) Å。
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