Cluster chemistry. LXXXVII. Some homo- and hetero-nuclear complexes derived from C2(PPh2)2: Crystal structures of Re3(μ-H)3(μ-dppa)(CO)10 , Re3(μ-H)3(CO)11> and Os3Ru2(μ5-C2PPh2)(μ-PPh2)(CO)13

Article abstract of DOI:10.1016/0022-328X(93)80277-I

Reaction of two equivalents of Re3(μ-H)3(CO)11(NCMe) with dppa produces the complex 2(μ-dppa) (2).When an excess of dppa is used, mono-substituted Re3(μ-H)3(CO)11(dppa) (3) and Re3(μ-H)3(μ-dppa)(CO)10 (4) were produced.When 3 is treated with Ru3(CO)12, the complex (μ-dppa) (5) is produced in high yield.When 5 is heated, the complex Re3(μ-H)3(CO)11> (6) is produced.Using the same methodology, (μ-dppa) (8) and (μ-dppa) (11) were prepared.When 8 is heated, the heteronuclear M5 cluster Os3Ru2(μ5-C2PPh2)(μ-PPh2)(CO)13 (10) is produced.Complexes 4, 6 and 10 were identified by single crystal X-ray studies.