Poly[μ₂-aqua-μ₄-[1-(4-chloro­phen­yl)-4,4,4-tri­fluoro­butane-1,3-dionato]-potassium]

In the title compound, [K(C₁₀H₅ClO₂F₃)(H₂O)]_n, the two independent K⁺ ions are located on a twofold rotation axis. For each of the cations, the distorted cubic coordination environment is defined by two F and four O atoms of symmetry-related 1,4-chloro­phenyl-4,4,4-tri­fluoro­butane-1,3-dionate anions and by two O atoms of water mol­ecules. The μ₄-bridging character of the anion and the μ₂-bridging of the water mol­ecule lead to the formation of layers parallel to (100). The coordinating water mol­ecules are also involved in O—H...O hydrogen bonds that reinforce the mol­ecular cohesion within the layers, which are stacked along [100]. The β-diketonate anion is not planar, with an angle of 31.78 (10)° between the mean planes of the diketonate group and the chloro­phenyl ring.