Diclofenac interactions: tetrakis[mu-2-(2,6-dichloroanilino)phenylacetato]-1 : 2 kappa O-8 : O `-diacetone-1 kappa O,2 kappa O-dicopper(II)(Cu-Cu) acetaldehyde solvate

The structure of the centrosymmetric dimeric copper(II) title compound, [Cu-2(C14H10Cl2NO2)(4)(C3H6O)(2)]. C2H4O, has been determined and compared with the structures of analogous O-bridged Cu-II dimers. Polarographic experiments on aqueous solutions containing a mixture of the Cu-II ion and diclofenac have been used to determine both the formation constant [1 (1) x 10(8)] and the solubility product [2 (1) x 10(-12)] of the complex.