Bis(1,10-phenanthroline-κ(2) N,N′)(sulfato-κ(2) O,O′)nickel(II) propane-1,2-diol monosolvate

In the title compound, [Ni(SO(4))(C(12)H(8)N(2))(2)]·C(3)H(8)O(2), the Ni(II) atom exhibits a distorted octa­hedral coordination by four N atoms from two chelating 1,10-phenanthroline ligands and two O atoms from an O,O′-bidentate sulfate group. A twofold rotation axis passes through the Ni and S atoms and the mid-point of the hydroxyl C—C bond of the propane-1,2-diol solvent mol­ecule. The dihedral angle between the two chelating N(2)C(2) groups is 85.61 (8)°. The [NiSO(4)(C(10)H(8)N(2))(2)] and propane-1,2-diol units are held together by a pair of symmetry-related inter­molecular O—H⋯O hydrogen bonds involving the uncoordinating O atoms of the sulfate ion. Due to symmetry, the solvent mol­ecule is equally disordered over two positions.