Cover Picture: Structure and Bonding of Pd@[Bi 10 ] 4+ in the Subbromide Bi 14 PdBr 16 (Angew. Chem. Int. Ed. 26/2003)

Endohedral clusters are more common in chemistry than expected, such as the inclusion compounds of fullerene (e.g., He@C 60 , left) and the recently discovered W@Au 12 icosahedron (right). In the Communication by M. Ruck et al. on page 2978 ff., the Pd@[Bi 10 ] 4+ polycation (above) is presented, which has a pentagonal antiprismatic structure, a semiregular polyhedron first described by Archimedes. The relative weakness of the interaction between the Pd center and the arachno ‐[Bi 10 ] 4+ unit is discussed.