Crystal structure of bis­[tris­(1,10-phenanthroline-κ(2) N,N′)cobalt(II)] tetra­nitrate N,N′-(1,4-phenyl­enedicarbon­yl)diglycine solvate octa­hydrate

The complex cation of the title compound, [Co(C(12)H(8)N(2))(3)](2)(NO(3))(4)·C(12)H(12)N(2)O(6)·8H(2)O, contains a Co(II) atom with a distorted octa­hedral coordination environment defined by six N atoms from three bidentate 1,10-phenanthroline ligands. The asymmetric unit of the title compound is completed by one-half of the N,N′-(1,4-phenyl­enedicarbon­yl)diglycine solvent mol­ecule, which is located on a centre of inversion, by two nitrate counter-anions and four solvent water mol­ecules. Two [Co(C(12)H(8)N(2))(3)](2+) cations are connected through C—H⋯O contacts and through lone-pair⋯π inter­actions involving the non-coordinating N,N′-(1,4-phenyl­enedicarbon­yl)diglycine and phenanthroline mol­ecules. The different aromatic ring systems are involved in π–π stacking and C—H⋯π inter­actions, with centroid-to-centroid distances in the range 3.7094 (8)–3.9973 (9) Å. The crystal structure is stabilized by further anion⋯π inter­actions and C—H⋯O contacts, as well as O—H⋯O and N—H⋯O hydrogen bonds between water mol­ecules, the non-coordinating nitrate anions, N,N′-(1,4-phenyl­enedicarbon­yl)diglycine and phenanthroline mol­ecules. These non-covalent inter­actions give rise to a three-dimensional supra­molecular network.