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metal-organic compounds
The title compound, octacarbonyl-1κ4C, 2κ4C-dihydrido-1κH, 2κH-bis(phenyl3κ4C)germaniumdiosmium(2 Ge—Os), [Os2(H)2 (CO)8{Ge(C6H5)2}], is the first cluster containing a single Os—E—Os (E = Ge, Sn, Pb) chain to be structurally characterized. The molecule possesses approximate C2 symmetry. The Os—Ge—Os metal chain is bent and the Os—Ge bonds [2.599 (2) and 2.614 (2) Å] are the longest yet known.