An Undecanuclear Iron(Iii) Oxo-Hydroxo Aggregate With Near Nanometer Size: Synthesis And Crystal Structure Of [Fe11o6(Oh)(6)(O2cph)(3)(O2cphme-P)(12)]

The title compound is formed by controlled hydrolytic polymerization in nonaqueous solution of simple oxo-bridged binuclear ferric salts under the presence of carboxylate ligands. The rhombohedral crystalline form of the cluster with six imidazole molecules, which has crystallographically required C-3V symmetry, will be reported. The largest Fe-Fe distance in the undecairon oxo-hydroxo cluster is about 0.68 nm and the cluster has a diameter near 2 nm, which implies that this cluster leaches a nanometer-sized dimension.