Photochemical Reactions of Transition Metal Organyl Complexes with Olefins. 15. Tricarbonyl(η⁴-1,3-butadiene)-μ-hydrido-(μ-η^1:5-indene-1,1-diyl)(η⁵-indenyl)-dimolybdenum(Mo—Mo)

The Mo centres of the binuclear title complex, [1(η⁴)-1,3-butadiene]tricarbonyl-1κC, 2κ²C-μ-hydrido-[2(1,2,3,3a,7a-η)-indenyl][μ-1(1,2,3,3a,7a-η):2κC¹-indenylidene]dimolybdenum(Mo—Mo), [Mo₂(H)(C₉H₆)(C₉H₇)(C₄H₆)(CO)₃], are bridged by a μ-η^1:5-indene-1,1-diyl and a hydrido ligand. The Mo—Mo distance of 3.2024 (7) Å is in accord with an Mo—Mo single bond.