麦凯型簇合物[Cu₉Al₉](Cp*)₂：具有类似金属电子结构的开壳层67电子超原子
The Mackay-Type Cluster [Cu Al ](Cp*) : Open-Shell 67-Electron Superatom with Emerging Metal-Like Electronic Structure.
作者信息
Weßing Jana, Ganesamoorthy Chelladurai, Kahlal Samia, Marchal Rémi, Gemel Christian, Cador Olivier, Da Silva Augusto C H, Da Silva Juarez L F, Saillard Jean-Yves, Fischer Roland A
机构信息
Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany.
University of Duisburg-Essen, Faculty of Chemistry, Universitätstrasse 5-7, 45141, Essen, Germany.
出版信息
Angew Chem Int Ed Engl. 2018 Oct 26;57(44):14630-14634. doi: 10.1002/anie.201806039. Epub 2018 Jul 24.
The paramagnetic cluster Cu Al was obtained from the reaction of [CuMes] and [AlCp*] (Cp*=η -C Me ; Mes=mesityl). This all-hydrocarbon ligand-stabilized M magic atom-number cluster features a Mackay-type nested icosahedral structure. Its open-shell 67-electron superatom configuration is unique. Three unpaired electrons occupy weakly antibonding jellium states. The situation prefigures the formation of a conduction band, which is in line with the measured temperature-independent magnetism. Steric protection by twelve Cp* ligands suppresses the intrinsic polyradicalar reactivity of the Cu Al core.
顺磁性簇合物Cu₉Al₈₁₂是由[CuMes]和[AlCp*]（Cp* = η⁵-C₅Me₅；Mes = 均三甲苯基）反应得到的。这种全碳氢配体稳定的M幻数簇合物具有麦凯型嵌套二十面体结构。其开壳层67电子超原子构型独特。三个未成对电子占据弱反键的电子气状态。这种情况预示着导带的形成，这与测得的与温度无关的磁性相符。十二个Cp*配体的空间位阻保护抑制了Cu₉Al₈核的固有多自由基反应性。
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