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tert-Butyl(cyclopentadienyl) Ligands Will Stabilize Nontraditional +2 Rare-Earth Metal Ions
Organometallics ( IF 2.5 ) Pub Date : 2019-02-22 , DOI: 10.1021/acs.organomet.8b00941
Mary A. Angadol 1 , David H. Woen 1 , Cory J. Windorff 1 , Joseph W. Ziller 1 , William J. Evans 1
Affiliation  

Reduction of the tris(tert-butylcyclopentadienyl) complexes, Cpt3Ln (Cpt = C5H4CMe3), with potassium in the presence of 18-crown-6 forms the crystallographically characterizable Ln(II) complexes, {[K(18-crown-6)][(μ-Cpt)2CeCpt]}n and [K(18-crown-6)(THF)2][Cpt3Ln] (Ln = Ce, Gd). EPR data indicate that La(II) and Y(II) complexes also form upon reduction of Cpt3Ln. Single crystals of the mixed-valent complexes, [K(18-crown-6)][(μ-Cpt)CeCpt2]2 and [K(2.2.2-cryptand)][Cpt3Dy]2, have also been isolated as part of this study and structurally characterized.

中文翻译:

丁基(环戊二烯基)配体将稳定非传统+2稀土金属离子

在18-crown-6存在下,用钾还原三(丁基环戊二烯基)络合物Cp t 3 Ln(Cp t = C 5 H 4 CMe 3)形成晶体学上可表征的Ln(II)络合物,{ K(18-冠-6)] [(μ-的Cp2 CECP]} ñ和[K(18-冠-6)(THF)2 ]的[Cp3 LN](LN = CE,Gd)的。EPR数据表明,La(II)和Y(II)配合物也会在Cp t 3 Ln还原时形成。混合价复合物的单晶,[K(18-冠-6)] [(μ-的Cp)CECPt 2 ] 2和[K(2.2.2-cryptand)] [Cp t 3 Dy] 2,也已作为本研究的一部分进行了分离并进行了结构表征。
更新日期:2019-02-23
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