Raft-like osmium- and ruthenium-antimony carbonyl clusters

The higher nuclearity raft-like clusters M6(CO)20(μ-SbPh2)2, where M = Os or Ru, were obtained via different routes. They undergo facile ligand substitution reactions with two-electron donors to afford the mono- and disubstituted derivatives M6(CO)20-n(μ-SbPh2)2(L)n, where n = 1 or 2; L = PMe3, PPh3 or tBuNC.209