Di-μ-sulfato-κO:O'-bis-[diaqua-(1H-imidazo[4,5-f][1,10]phenanthroline)manganese(II)] dihydrate.

In the title centrosymmetric dinuclear compound, [Mn(2)(SO(4))(2)(C(13)H(8)N(4))(2)(H(2)O)(4)]·2H(2)O, the Mn(II) atom is octa-hedrally coordinated by two N atoms from a 1H-imidazo[4,5-f][1,10]phenanthroline (ip) ligand, two O atoms belonging to two bridging sulfate anions and two water O atoms. In the crystal structure, the complex mol-ecules and the uncoodinated water mol-ecules are connected by O-H⋯O, O-H⋯N and N-H⋯O hydrogen bonds into a three-dimensional network. A π-π stacking inter-action between the pyridyl ring of the ip ligand and the benzene ring of the neighboring ligand [centroid-centroid distance = 3.579 (2) Å] is also observed.