Chiral self-sorting in truxene-based metallacages

Abstract

Two chiral face-rotatingmetalla-assembled polyhedrawere constructed upon self-assembling achiral components, i.e., a tritopic ligand based on a truxene core (10,15-dihydro-5H-diindeno [1,2-a;1′,2′-c]fluorene) and two different hydroxyquinonato-bridged diruthenium complexes. Both polyhedra were characterized in solution as well as in the solid state by X-ray crystallography. In both cases, the self-sorting process leading to only two homo-chiral enantiomers was governed by non-covalent interactions between both truxene units that faced each other.