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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.

DOI:10.1107/S1600536812032321
PMID:22969464
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3435591/
Abstract

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.

摘要

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。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d65b/3435591/8201511add52/e-68-m1167-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d65b/3435591/720c4aa3f809/e-68-m1167-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d65b/3435591/8201511add52/e-68-m1167-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d65b/3435591/720c4aa3f809/e-68-m1167-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d65b/3435591/8201511add52/e-68-m1167-fig2.jpg

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本文引用的文献

1
Reduced N-alkyl substituted bis(imino)pyridine cobalt complexes: molecular and electronic structures for compounds varying by three oxidation states.降低 N-烷基取代的双(亚氨基)吡啶钴配合物：不同氧化态的化合物的分子和电子结构。
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A short history of SHELX.SHELX简史。
Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22. doi: 10.1107/S0108767307043930. Epub 2007 Dec 21.
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Unusual iron(II) and cobalt(II) complexes derived from monodentate arylamido ligands.由单齿芳基酰胺配体衍生而来的特殊铁（II）和钴（II）配合物。
Inorg Chem. 2007 Sep 17;46(19):7695-7. doi: 10.1021/ic700850e. Epub 2007 Aug 17.
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Chelate bis(imino)pyridine cobalt complexes: synthesis, reduction, and evidence for the generation of ethene polymerization catalysts by Li+ cation activation.螯合双（亚氨基）吡啶钴配合物：合成、还原以及Li⁺阳离子活化生成乙烯聚合催化剂的证据
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