Dicationic lutetium hydride complex stabilized by a meta-cyclophane-derived (NNNC)-type macrocycle

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• 作者：Heiko Kulinna ; Thomas P. Spaniol ; Jun Okuda
• 关键词：Rare-earth metal ; Metal alkyl ; Hydride ; Cation ; Macrocycle
• 刊名：Journal of Organometallic Chemistry
• 出版年：2013
• 出版时间：1 November, 2013
• 年：2013
• 卷：744
• 期：Complete
• 页码：49-52
• 全文大小：633 K

文摘

The meta-azacyclophane (Me₃TAMC)H (=2,5,8-trimethyl-2,5,8-triaza-meta-cyclophane) reacted with the rare earth metal tris(trimethylsilylmethyl) complex [Ln(CH₂SiMe₃)₃(THF)₂] (Ln?=?Sc, Y, Lu) in THF or benzene to give a C_s-symmetric bis(trimethylsilylmethyl) complex [Ln(Me₃TAMC)(CH₂SiMe₃)₂]. The tetradentate (NNNC)-type ligand is formed by metalation of the phenyl group within the macrocycle. In the case of lutetium, abstraction of an alkyl group followed by the treatment of dihydrogen gave the dimeric cationic hydride complex [{(Me₃TAMC)Lu(¦Ì-H)(THF)}₂][B(3,5-C₆H₃Cl₂)₄]₂ that was characterized by single-crystal X-ray crystallography.