COORDINATION OF AN ANTHRACENE-DERIVED LIGAND THROUGH 8 CARBON-ATOMS IN THE PENTARUTHENIUM BOW-TIE CLUSTER (MU(5)-ETA(1)ETA(2)ETA(3)ETA(3)-C14H8-ETA(1)-PPH)]

The new pentaruthenium phenylphosphidoanthracene bow-tie cluster, 5)-e ta(1):eta(2):eta(3):eta(3)-C14H8-eta(1)-PPh)], is prepared from the th ermolysis of [Ru-3(CO)(12)] and (9-anthracyl)diphenylphosphine, the cr ystal structure of which reveals a unique mu(5)-interaction of the lig and with the ruthenium cluster.