W2Ir2(μ4-η2-C2Ph2)(μ-CO)4(CO)4(η-C5H4Me)2

Abstract

The title compound, octa­carbonyl-μ-di­phenyl­acetyl­ene-bis(η5-methyl­cyclo­penta­dienyl)­diiridium­ditungsten, W2Ir2(μ4-η2-C2Ph2)(μ-CO)4(CO)4(η-C5H4Me)2 or [W2Ir2(C6H7)2(C14H10)(CO)8], is a mixed-metal cluster with a butterfly metal core geometry, W atoms at the wing-tip sites and Ir atoms at the hinge positions. A di­phenyl­acetyl­ene ligand is μ4-η2-coordinated with the C—C bond parallel to the Ir—Ir vector, completing a pseudo-octahedral W2Ir2C2 unit. The W atoms are each ligated by a methyl­cyclo­penta­dienyl ligand, and the Ir atoms are each ligated by two terminal carbonyls, with the coordination completed by four bridging carbonyls, each of which lies across a W—Ir linkage.