catena-Poly[[[tetra­aqua­copper(II)]-μ-4,4′-bipyridyl-κ(2) N:N′] tetra­fluorido­succinate tetra­hydrate]

In the title compound, {[Cu(C(10)H(8)N(2))(H(2)O)(4)](C(4)F(4)O(4))·4H(2)O}(n), the Cu(II) atom adopts an elongated octa­hedral geometry because of the Jahn–Teller effect. Both cation and anion have crystallographic twofold rotation symmetry with the twofold axes passing through the Cu and N atoms and through the midpoint of the central C—C bond. The 4,4′-bipyridyl ligand links the Cu(II) atoms into a linear chain along the b axis. O—H⋯O hydrogen-bonding inter­actions between the cationic chains and the tetra­fluorido­succinate anions and the free water mol­ecules generate a three-dimensional supra­molecular network.