Crystal structure of aqua­chlorido­(nitrato-κ(2) O,O′)[1-(pyridin-2-yl-κN)-2-(pyridin-2-yl­methyl­idene-κN)hydrazine-κN (2)]manganase(II)

The search for novel manganese(II) compounds having inter­esting magnetic properties, using 1-(pyridin-2-yl)-2-(pyridin-2-yl­methyl­idene)hydrazine (HL) as a tridendate ligand, led to the preparation of the title mononuclear material, [MnCl(NO(3))(C(11)H(10)N(4))(H(2)O)], and the determination of its structure by XRD. The asymmetric unit comprises a discrete mol­ecule in which the cation Mn(II) is hepta­coordinated. The environment around the cation is an almost perfect penta­gonal bipyramid. The base is defined by the two N atoms of the pyridine rings, the N atom of the imino function of the ligand and the two O atoms of the chelating bidentate nitrate ligand. The apical positions are occupied by a Cl atom and a water mol­ecule. In the crystal, there are numerous hydrogen bonds of the types Ow—H⋯ONO(2) and C—H⋯ONO(2), which generate layers parallel to the bc plane in which the ligands in the axial positions point into the inter­layer space. These axial ligands give rise to hydrogen bonds of the types Ow—H⋯ONO(2), Ow—H⋯Cl, N—H⋯Cl and C—H⋯Cl, leading to a three-dimensional framework. The chain bridging the two pyridine rings is disordered over two sets of sites in a 0.53 (2):0.47 (2) ratio.