C3-Symmetric Pt3Pd3 Purine Vases Based on a Metal Coordination Motif Involving the Pyrimidinic N1 and N3 Sites

Abstract

Vase-shaped hexanuclear (Pt3Pd3) complexes with 9-alkylhypoxanthinate ligands bridging three (en)PdII units through N1 and N3 sites are reported, which bind ClO4− ions in their cavities, albeit not in strictly analogous ways. The structural differences reflect the flexibility of the host cation and may even be relevant to the mechanism of ClO4− incorporation into the host or ejection from it.