A new tetrahedral coordination cage M12L6 was prepared from a linear dipyrimidine ligand (L) and cis-protected palladium(II) (M). This cage showed unprecedented host-guest chemistry where the cationic host accommodated a cationic guest despite 24+ charges on the host framework. The unusual cation-cation host-guest chemistry is described by a unique onionlike shell structure of the host-guest complex where two cationic spheres are mediated by an anionic sphere of a counteranion assembly.
An unprecedented addition pattern for the novel hexakis‐cyclopropanated C60 (±)‐1 was prepared by a sequence of tether‐directed regioselective remote functionalizations. The X‐ray crystal structure revealed the positioning of the six addends in a distinct helical array along an equatorial belt.
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