Condensed metallaborane clusters: synthesis and structure of Fe2(CO)6((eta)^5-C5Me5RuCO)((eta)^5-C5Me5Ru)B6H10

AMild pyrolysis of ((eta)^5-C5Me5Ru)2B6H12 with Fe2(CO)9 yields the 12 skeletal electron pair (sep) Fe2(CO)6((eta)^5-C5Me5RuCO)((eta)^5-C5Me5Ru)B6H10 cluster; the title compound represents a novel class of hybrid multiple cluster in which a Fe2B2 tetrahedron has been fused to a ruthenaborane substrate.