A Bulky m‐Terphenyl Cyclopentadienyl Ligand and Its Alkali‐Metal Complexes,Angewandte Chemie International Edition

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A Bulky m‐Terphenyl Cyclopentadienyl Ligand and Its Alkali‐Metal Complexes
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2017-08-09 , DOI: 10.1002/anie.201706398
Alex J. Veinot ₁ , Angela D. K. Todd ₁ , Jason D. Masuda ₁

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The synthesis of the new m‐terphenyl‐substituted cyclopentadienyl ligand precursor 1‐cyclopentadiene‐2,6‐bis(2,4,6‐trimethylphenyl)benzene (Ter^MesCpH) is described. The synthesis proceeds through the reaction of Ter^MesLi with cobaltocenium iodide, followed by oxidation of the intermediate cobalt(I) species to give the corresponding cyclopentadiene as a mixture of isomers. The preparation and spectroscopic properties of the alkali‐metal salts (Li–Cs) is described, as well as structural information obtained by X‐ray diffraction studies for the lithium, potassium, and cesium analogues. Crystallographic data demonstrate the ability of these new ligands to act as monoanionic chelates by forming metal complexes with Cp–M–Ar bonding environments.

中文翻译：

庞大的间苯三环戊二烯基配体及其碱金属配合物

的新的合成米-取代环戊二烯基-三联苯配体前体1-环戊二烯- 2,6-双（2,4,6-三甲基苯基）苯（TER^的Mes CPH）进行说明。合成过程通过Ter ^Mes Li与碘化钴反应进行，然后将中间的钴（I）物种氧化，得到相应的环戊二烯，为异构体混合物。描述了碱金属盐（Li–Cs）的制备和光谱性质，以及通过X射线衍射研究获得的锂，钾和铯类似物的结构信息。晶体学数据表明，这些新配体具有与Cp–M–Ar键合环境形成金属络合物的能力，可充当单阴离子螯合物。

更新日期：2017-08-09

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