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(CH3OCH2CH2C5H4)2Ln(C5H5)的合成和反应性能
Synthesis and Reactivity of (CH3OCH2CH2C5H4)2Ln(C5H5)
【摘要】 本文通过双(2-甲氧乙基环戊二烯基)稀土氯化物与环戊二烯基钠在室温下反应,经升华得新配合物,(CH3OCH2CH2C5H4)2Ln(C5H5)(Ln=La,Pr,Nd),这些配合物都经红外、光电子能谱、质谱、核磁共振谱和元素分析鉴定;并且比较了具有不同配位环境的三茂稀土配合物-氢化钠体系还原1-己烯的活性。
【Abstract】 The complexes (CH3OCH2CH2C5H4)2Ln(C5H5)(Ln = La, Pr, Nd)were synthesized via the reaction of bis(2-methoxylethylcyclopentadienyl) chlorides of early lanthanide with sodium cyclopentadienyl in THF. The new complexes were identified by IR, 1H NMR, 13C NMR, MS, XPS and elemental analyses. Reduction of 1-hexene with different tricyclopentadienyl lanthanides/ NaH system was investigated. The reducing activity depends strongly upon the coordination sphere of the rare earth ion.
【关键词】 稀土有机配合物;
配位环境;
还原;
合成;
【Key words】 organolanthanide complex; coordination surrounding; reduction; synthesis;
【Key words】 organolanthanide complex; coordination surrounding; reduction; synthesis;
【基金】 国家自然科学基金
- 【文献出处】 有机化学 ,Chinese Journal of Organic Chemistry , 编辑部邮箱 ,1994年03期
- 【分类号】O641.4
- 【被引频次】4
- 【下载频次】34