[Eu@Sn6Bi8]~(4-) : A Mini-Fullerane-Type Zintl Anion Containing a Lanthanide Ion

摘要

Experimental and theoretical studies on intermetalloid cluster anions, that is, main-group-element cages with interstitial transition metal atom(s), have attracted the interest of chemists and physicists for about a decade. This is due to a large variety of novel structural types, unprecedented bonding situations, and unexpected chemical and physical properties of the resulting phases; furthermore, the compounds are discussed as being models for doped materials and/or precursors to novel intermetallic phases.