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metal-organic compounds
Tetracarbonyl-1κ2C;2κ2C-bis[3,4(η5)-cyclopentadienyl]hexakis-μ-dimethylphosphito-1κ3O: P; 2 : 4κ6O : P-dicobaltdimolybdenum(I)(Mo—Mo), [Mo(CO)2{Co(C5H5)(C2H6O3P)3}]2, a binuclear metal complex of type L2Mo2(CO)4 (L is a tripod ligand), shows central MoMo triple bond of length 2.467 (1) and 2.468 (1) Å in the two independent molecules. The structure agrees very well with that of a related tungsten complex. The coordination of the central Mo atoms is distorted octahedral with acute Mo—Mo—C angles. All twelve Mo—O—P—Co fragments are synperiplanar with Co—P bond lengths ranging from 2.152 (2) to 2.171 (1) Å.