Diaqua­bis­(1,10-phenanthroline-κ2 N,N′)manganese(II) sulfate hexa­hydrate

In the title compound, [Mn(C(12)H(8)N(2))(2)(H(2)O)(2)]SO(4)·6H(2)O, the complex cations assemble into positively charged sheets parallel to (010) via inter-molecular π-π stacking inter-actions with a mean interplanar distance of 3.410 (6) along [100] and 3.465 (5) Å along [001]. The sulfate anions and uncoordinated water mol-ecules are inter-connected between these layers by hydrogen bonds, forming negatively charged layers which are linked to the positive layers through O-H⋯O hydrogen bonds, forming a three-dimensional architecture. Both the positive and negative sheets are stacked along [010] in an ⋯ABAB⋯ sequence, the A layers being shifted by 1/2a along [100] with respect to the B layers. One of the uncoordinated water molecules is equally disordered over two positions.