Tetrakis(μ-phenoxyacetato-κ2O:O′ )bis[(1,10-phenanthroline-κ2N,N′)-manganese(II)] methanol hemisolvate

The title complex, [Mn-2(C8H7O3)(4)(C12H8N2)(2)]center dot 0.5CH(3)OH, is a carboxylate-bridged dinuclear Mn-II complex with four phenoxyacetate ions and two 1,10-phenanthroline molecules as ligands. Each of the four phenoxyacetate anions bridges the pair of Mn atoms. The asymmetric unit is completed by a half-occupancy methanol solvent molecule. Face-to-face pi-pi stacking interactions between the aromatic rings of 1,10-phenanthroline molecules belonging to adjacent Mn-2 complexes, with an interplanar separation of circa 3.4 angstrom, and weak C-H center dot center dot center dot O hydrogen bonds connect the dinuclear units into a three-dimensional supramolecular framework.