Actinide-Actinide Bonding: Electron Delocalisation and σ-Aromaticity in the Tri-Thorium Cluster [{Th(η8 -C8 H8 )(μ-Cl)2 }3 K2 ]. - Tomeček J; Liddle ST; Kaltsoyannis N (Chemphyschem : a European journal of chemical physics and physical chemistry, 2023)