Activation of Dihydrogen by Masked Doubly Bonded Aluminum Species

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• 作者：Dr. Koichi Nagata ; Takahiro Murosaki ; Prof. Dr. Tomohiro Agou ; Prof. Dr. Takahiro Sasamori ; Prof. Dr. Tsukasa Matsuo and Prof. Dr. Norihiro Tokitoh
• 刊名：Angewandte Chemie International Edition
• 出版年：2016
• 出版时间：October 4, 2016
• 年：2016
• 卷：55
• 期：41
• 页码：12877-12880
• 全文大小：726K
• ISSN：1521-3773

文摘

Activation of dihydrogen by masked dialumenes (Al=Al doubly bonded species) is reported. Reactions of barrelene-type dialumanes, which have the reactivity as masked equivalents of 1,2-diaryldialumenes ArAl=AlAr, with H₂ afforded dihydroalumanes ArAlH₂ at room temperature (Ar: bulky aryl groups). These dihydroalumanes form hydrogen-bridged dimers [ArHAl(μ-H)]₂ in the crystalline state, while a monomer–dimer equilibrium was suggested in solution. The 1,2-diaryldialumenes generated from the barrelene-type dialumanes are the putative active species in the cleavage of H₂.