Summary: | The metal site in the title compound [MnCl2(C12H12N2)2]·2.5H2O has a distorted octahedral geometry, coordinated by four N atoms of two 5,5′-dimethyl-2,2′-dipyridine ligands and two Cl atoms. Two and a half water molecules of hydration per complex unit are observed in the crystal structure. The compounds extend along the c axis with O—H...Cl, O—H...O, C—H...Cl and C—H...O hydrogen bonds and π–π interactions [centroid-centroid distance = 3.70 (2) Å] contributing substantially to the crystal packing. The Mn and one of the water O atoms, the latter being half-occupied, are located on special positions, in this case a rotation axis of order 2.
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