Metallation of PtRu5(CO)16(μ6-C) by using bis(tri-t-butyl-phosphine) complexes of platinum and palladium

Pt(PBu3t)(2) and Pd(PBu3t)(2) react with PtRu5(CO)(16)(mu(6)-C) (4) to yield the new cluster complexes, PtRu5(CO)(16)(mu(6)-C)[Pt(PBu3t)] (5); PtRu5(CO)(16)(mu(6)-C)[Pt(PBu3t)](2) (6); PtRu5(CO)(16)(mu(6)-C)[Pd(PBu3t)] (7) and PtRu5(CO)(16)(mu(6)-C)[Pd(PBu3t)](2) (8). All four complexes have been characterized crystallographically. Compounds 5 and 7 are structurally similar and contain a M(PBu3t) group bridging an Ru-Ru edge of the original cluster of 4. Compounds 6 and 8 contain two M(PBu3t) groups. One group bridges an Ru-Ru edge as found in compounds 5 and 7. The other M(PBu3t) group bridges one of the Pt-Ru edges of the original cluster of 4. All four compounds can be viewed as M(PBu3t) adducts of 4 because no ligands were lost from 4 in the course of these addition reactions. (C) 2003 Elsevier B.V. All rights reserved.