Reactions of the Trinuclear Cluster ( ~ 2-H) Ru~ 3 (CO)~ 9 ( ~ 3, eta^ 2-SCNHPhNPh): Synthesis and Molecular Structure of Ru~ 3 (CO)~ 6 (PPh~ 3)( ~ 2, eta^ 2-C~ 6H~ 5)-( ~ 2-PPh~ 2)( ~ 3-S), a Complex Containing a Phenyl Ligand with a Rare , -Coordination Mode