Synthesis of MXOY and Related Rings

By the hydrothermal reaction of lead (II) acetate with 2-benzonylbenzoic acid, colourless crystals of a hexanuclear lead carboxylate with bridging oxide ligands was obtained. The structure of the molecule could be described as being like a tennis ball of lead atoms at the centre of a soccer ball of carboxylate ligands. For clarity the carboxylate and oxide ligands have been omitted.