Poly[[diaqua-bis-[μ-2-(4-fluoro-phen-oxy)acetato-κ(2)O(1):O(1')]magnesium] 0.4-hydrate]

In the title compound, {[Mg(C(8)H(6)FO(3))(2)(H(2)O)(2)]·0.4H(2)O}(n), slightly distorted octa-hedral MgO(6) complex units have crystallographic inversion symmetry, the coordination polyhedron comprising two trans-related water mol-ecules and four carboxyl O-atom donors, two of which are bridging. Within the two-dimensional complex polymer which is parallel to (100), coordinating water mol-ecules form inter-molecular O-H⋯O hydrogen bonds with carboxyl-ate and phen-oxy O-atom acceptors, as well as with the partial-occupancy solvent water mol-ecules.