Bis[μ-(3-acetyl-2-hy­droxy-6-methyl-4H-pyran-4-one-κ³O:O′,O′′)]diaqua­tetra­kis­(pyridine-κN)dicopper(II) diperchlorate

In the centrosymmetric binuclear cation of the title compound, [Cu(C₈H₇O₄)(H₂O)(C₅H₅N)₂]₂(ClO₄)₂, the Cu^II atoms are bridged by a pair of two dehydro­acetate anions in a bis-/monodentate mode. The distorted octa­hedral N₂O₄ coordination sphere of the metal cation is completed by two pyridine N atoms and one O atom of a water mol­ecule. The complex cations and the perchlorate counter anions are arranged in layers parallel to (100). O—H...O hydrogen bonds between the coordinating water mol­ecules and the perchlorate anions constitute ribbons parallel to [10-1]. C—H...O hydrogen bonds are also observed.

1-Chloro­methyl­sulfinyl-2-nitro­benzene

In the title compound, C₇H₆ClNO₃S, the nitro group forms a dihedral angle of 2.7 (4)° with the benzene ring. The bond-angle sum at the S atom is 303.7°. In the crystal, mol­ecules are linked by weak C—H...O hydrogen bonds, forming layers lying parallel to (-101).