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Acta Cryst. (2013). E69, m422-m423  [ doi:10.1107/S1600536813017388 ]

Poly[[mu]2-aqua-[mu]4-[1-(4-chlorophenyl)-4,4,4-trifluorobutane-1,3-dionato]-potassium]

J. P. Martins, C. C. Arranja, A. J. F. N. Sobral and M. Ramos Silva

Abstract: 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 [mu]4-bridging character of the anion and the [mu]2-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 [beta]-diketonate anion is not planar, with an angle of 31.78 (10)° between the mean planes of the diketonate group and the chlorophenyl ring.


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