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Cover Picture: The Mackay‐Type Cluster [Cu 43 Al 12 ](Cp*) 12 : Open‐Shell 67‐Electron Superatom with Emerging Metal‐Like Electronic Structure (Angew. Chem. Int. Ed. 44/2018)
Author(s) -
Weßing Jana,
Ganesamoorthy Chelladurai,
Kahlal Samia,
Marchal Rémi,
Gemel Christian,
Cador Olivier,
Da Silva Augusto C. H.,
Da Silva Juarez L. F.,
Saillard JeanYves,
Fischer Roland A.
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201811547
Subject(s) - 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 , programming language , organic chemistry , quantum mechanics , computer science , embedded system
The M 55 magic‐atom‐number cluster [Cu 43 Al 12 ](Cp*) 12 features a Mackay‐type nested icosahedral core–shell structure, protected by twelve Cp* (Cp*=η‐C 5 (CH 3 ) 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.