Multiple Coordination of Metal Atoms to Arenes: The Coordination of Six Ruthenium Atoms to Naphthalene-1,8-diyl in [Ru6(μ6-C10H6)(μ3-PPh)(CO)14]

Six ruthenium atoms are coordinated to the naphthalene-1,8-diyl ligand in the cluster [Ru6(CO)14(C10H6)(PPh)] through two Ru−C σ bonds, two η2, and two η3 interactions (section of structure depicted on the right). The complex could, therefore, serve as a model for the chemisorption of naphthalene on a step-site on a (111) metal surface.