Fig. 1
From: Self-assembly of polycyclic supramolecules using linear metal-organic ligands

Energy-minimized structures of supramolecular cycles C1–C5. C1: violet = Fe; C2: cardinal = Ru, blue = Zn; C3–1 & C3–2: cardinal = Ru, blue = Zn; C4: cardinal = Ru, blue = Zn; C5: cardinal = Ru, yellow = Cd. Alkyl chains were omitted for clarity