A [24-MC-6] zinc metallacoronate with a nonsteroidal antiinflammatory drug as the constructing ligand.

The interaction of ZnCl2 with 2-dipyridylketonoxime (=Hpko) and flufenamic acid (=Hfluf) in a basic methanolic solution leads to the formation of a hexanuclear 24-membered metallacoronate, [Zn6(OH)2(pko)4(fluf)6] (1), with a [Zn–O–C–O] repeat unit and a nonsteroidal antiinflammatory drug as the constructing ligand. Compound 1 retains its structure in a dimethyl sulfoxide solution, as shown by 1H NMR spectroscopy and molar conductance.