Crystal structure and Hirshfeld surface analysis of (μ-2-{4-[(carboxyl­atometh­yl)carbamo­yl]benz­amido}­acetato-κ(2) O:O′)bis­[bis­(1,10-phenanthroline-κ(2) N,N′)copper(II)] dinitrate N,N′-(1,4-phenyl­enedicarbon­yl)diglycine monosolvate octa­hydrate

The centrosymmetric binuclear complex cation of the title compound, [Cu(2)(C(12)H(10)N(2)O(6))(C(12)H(8)N(2))(4)](NO(3))(2)·C(12)H(12)N(2)O(6)·8H(2)O, is composed of a Cu(II) atom with a distorted trigonal–bipyramidal coordination environment defined by four N atoms from two bidentate 1,10-phenanthroline ligands and one oxygen atom from one-half of the monodentate N,N′-(1,4-phenyl­enedicarbon­yl)diglycinate anion. The asymmetric unit is completed by one-half of the N,N′-(1,4-phenyl­enedicarbon­yl)diglycine solvent mol­ecule, which is located on a centre of inversion, by one nitrate counter-anion and four water mol­ecules. In the crystal, the cationic complexes are linked via inter­molecular π–π stacking and through lone-pair⋯π inter­actions involving the N,N′-(1,4-phenyl­enedicarbon­yl)diglycinate anion and the phenanthroline ligands. The N,N′-(1,4-phenyl­enedicarbon­yl)diglycine solvent mol­ecule is involved in classical and non-classical hydrogen-bonding inter­actions, as well as π–π stacking inter­actions. The centroid-to-centroid distances between aromatic entities are in the range 3.5402 (5)–4.3673 (4) Å. The crystal structure is stabilized by further C—H⋯O contacts as well as by O—H⋯O and N—H⋯O hydrogen bonds between water mol­ecules, the nitrate anions, the N,N′-(1,4-phenyl­enedicarbon­yl)diglycinate ligands, N,N′-(1,4-phenyl­enedicarbon­yl)diglycine solvent mol­ecules and phenanthroline ligands, giving rise to a supra­molecular framework. A Hirshfeld surface analysis was carried out to qu­antify these inter­actions.