Heterosite Reactivity of Cobalt-Rhodium Mixed-Metal Clusters

Abstract It has been established that reactions of cobalt-rhodium mixed-metal clusters with nucleophiles such as PEt3, THF, MeCN and Cl− occur on the rhodium site, with alkynes on the cobalt site. Several reversible tetranuclear-dinuclear transformations were observed with preferential retainment of the cobalt-rhodium bond.