An electron pooling complexed ligand (PL) was prepared by linking mu(3)-oxo Ru-3 clusters with 1,4,7-tris(4-pyridylmethyl)1 4,7-triazacyclononane (pic(3)tacn). The cyclic voltammogram of the pooling ligand appeared similar to the Ru-3 cluster monomers. Each wave corresponded to three simultaneous 1e(-) processes. In the presence of Zn(II) ions, CO, was reduced, indicating cooperation between the Ru-3 cluster centers. IR spectroelectrochemistry (IRSEC) indicated that the products of reduction were carbonate and formate and CO.