An M L Molecular Capsule with a Redox Switchable Polyradical Shell.

Preparation of molecular nanostructures with polyradical frameworks remains a significant challenge because of the limited synthetic accessibility which is entirely different from that of neutral and ionic ones. Herein we report the quantitative formation of a new M L molecular capsule from metal ions and dihydrophenazine-based ligands. The capsule has a spherical nanocavity (ca.