Cover Picture: The Mackay‐Type Cluster [Cu₄₃Al₁₂](Cp*)₁₂: Open‐Shell 67‐Electron Superatom with Emerging Metal‐Like Electronic Structure (Angew. Chem. Int. Ed. 44/2018) Article Swipe

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Superatom Unpaired electron Jellium Chemistry Antibonding molecular orbital Crystallography Icosahedral symmetry Chalcogen Atom (system on chip) Open shell Lone pair Cluster (spacecraft) Cluster chemistry Electron Electronic structure Physics Metal Atomic orbital Computational chemistry Molecule Quantum mechanics Programming language Organic chemistry Embedded system Computer science

Jana Weßing , Chelladurai Ganesamoorthy , Samia Kahlal , Rémi Marchal , Christian Gemel , Olivier Cador , Augusto C. H. Da Silva , Juarez L. F. Da Silva , Jean‐Yves Saillard , Roland A. Fischer ·

YOU? · · 2018 · Open Access · · DOI: https://doi.org/10.1002/anie.201811547 · OA: W2896924862

The M55 magic-atom-number cluster [Cu43Al12](Cp*)12 features a Mackay-type nested icosahedral core–shell structure, protected by twelve Cp* (Cp*=η-C5(CH3)5) groups. As shown by J.-Y. Saillard, R. A. Fischer, and co-workers in their Communication on page 14630 ff., its open-shell 67 electron superatom configuration features three unpaired electrons occupying weakly antibonding jellium states. The situation prefigures the formation of a conduction band, which is in line with the temperature-independent magnetism. The M55 magic-atom-number cluster [Cu43Al12](Cp*)12 features a Mackay-type nested icosahedral core–shell structure, protected by twelve Cp* (Cp*=η-C5(CH3)5) groups. As shown by J.-Y. Saillard, R. A. Fischer, and co-workers in their Communication on page 14630 ff., its open-shell 67 electron superatom configuration features three unpaired electrons occupying weakly antibonding jellium states. The situation prefigures the formation of a conduction band, which is in line with the temperature-independent magnetism. Photochemistry Hydrogenation Siderophores NMR Spectroscopy