Synthesis, Characterization, and Reactivity of the Thermally Stable Lutetium Tris(alkyl) Complex (tBu2bpy)Lu(CH2SiMe3)3

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• 作者：Jason D. Masuda ; Kimberly C. Jantunen ; Brian L. Scott ; Jaqueline L. Kiplinger
• 刊名：Organometallics
• 出版年：2008
• 出版时间：March 24, 2008
• 年：2008
• 卷：27
• 期：6
• 页码：1299 - 1304
• 全文大小：180K
• 年卷期：v.27,no.6(March 24, 2008)
• ISSN：1520-6041

文摘

4,4′-Di-tert-butyl-2,2′-bipyridyl (^tBu₂bpy) stabilizes the thermally sensitive [Lu(CH₂SiMe₃)₃] unit, giving the isolable lutetium(III) (trimethylsilyl)methyl complex (^tBu₂bpy)Lu(CH₂SiMe₃)₃ (4). This tris(alkyl) complex does not undergo alkane elimination, and it readily reacts with Ph₃COH, H₂N-2,6-ⁱPr₂-C₆H₃, H₂N-2,4,6-^tBu₃-C₆H₂, and N,N′-dicyclohexylcarbodiimide (DCHCDI) to afford a variety of Lu(III) tris(alkoxide), tris(amide), mono(amide) bis(alkyl), and amidinate bis(alkyl) compounds. Reaction of the amide bis(alkyl) complex (^tBu₂bpy)Lu(NH-2,4,6-^tBu₃-C₆H₂)(CH₂SiMe₃)₂ (7) with triphenylphosphine oxide gives (Ph₃PO)₂Lu(NH-2,4,6-^tBu₃-C₆H₂)(CH₂SiMe₃)₂ (9), showing that the bidentate ^tBu₂bpy ligand can be displaced.