Crystal structure of potassium tris(acetylacetonato)cadmate(II) monohydrate

The crystal structure of the title compound has been determined from single-crystal X-ray diffractometer data by the heavy-atom method, and refined to R 0.071 (1997 observed reflections) by block-diagonal least-squares. Crystals are monoclinic, P2₁/a, a = 16.46(1), b = 14.051(6), c = 8.404(3) Å, β = 101.60(3)°, Z = 4. The structure is comprised of discrete potassium cations and [Cd(C₅H₇O₂)₃]^- anions, in which the metal atom is co-ordinated by the three ligands. with Cd-O 2.247(7)-2.325(9) Å, in a very good approximation to trigonal prismatic stereochemistry. The potassium environment is comprised of five of the six ligand oxygen atoms and the water molecule, with K-O 2.622(11)-2.802(8) Å.