catena -Poly[[[aqua(pyrazino[2,3- f ][1,10]phenanthroline-κ 2 N , N ′)copper(II)]-μ-isophthalato-κ 2 O : O ′] N , N -dimethylformamide solvate monohydrate]

In the title compound, {[Cu(C8H4O4)(C14H8N4)(H2O)]·C3H7NO·H2O}n, the CuII atom binds a water mol­ecule and is chelated by the pyrazinophenanthroline N-heterocycle. It is also linked covalently to an isophthalate dianion that lies on a special position of site symmetry 2. The dianion serves as a spacer that connects adjacent square-pyramidal metal atoms into a zigzag chain propagating along the c axis of the ortho­rhom­bic unit cell. The chain motif is consolidated into a layer structure by hydrogen bonds involving both the coordinated and uncoordinated water mol­ecules. The copper atom and the coordinated water mol­ecule lie on a mirror plane, while the N-heterocycle, the disordered uncoordinated water mol­ecule and the disordered dimethyl­formamide solvent mol­ecule lie across a mirror plane.