REACTION OF RUTHENIUM CARBONYLCARBIDE CLUSTER RU6C(CO)(17) WITH NICKELOCENE AND PENTAMETHYLCYCLOPENTADIENE

The reaction of cluster Ru6C(CO)(17) (1) with nickelocene is studied. Five CO ligands rather than a metal-ligand crown are substituted for t wo cyclopentadienyl groups to give a new complex Ru6C(eta(5)-Cp)(2)(CO )(12) (2). The reaction of cluster 1 with pentamethylcyclopentadiene l eads to new complex Ru6C(mu-eta(1):eta(5)-CH(2)C(5)Me(4))(CO)(14) (3) containing the sigma-bond CH2-Ru, along with an eta(5)-coordinated cyc lopentadienyl ring.