Preparation and characterization of Mo2C2, Co2Mo2C2 clusters containing functionally substituted cyclopentadienyl ligands. The crystal structures of [Mo2(μ-C2HPh)(CO)4(η5-C5H4C(O)Me)2] and [Co2Mo2(μ4-C2HPh)(μ-CO)4(CO)4(η5-C5H4C(O)Me)2]

[μ-3-(8-Quinol-yloxy)propanedi-yl]bis-[dicarbon-yl(η-methoxy-carbonyl-cyclo-penta-dien-yl)molybdenum(III)]

The crystal structure of the title dimolybdenum complex, [Mo₂(C₁₂H₉NO)(C₇H₇O₂)₂(CO)₄], has a quasi-tetra­hedral Mo₂C₂ cluster core attached to one 3-(8-quinol­yloxy)propanediyl (L) and two methoxy­carbonyl­cyclo­penta­dienyl (Cp’) ligands which are coordinated to two Mo atoms: one Mo atom bonds two terminal CO ligands while the other links one terminal and one semi-bridging CO ligand. An intra­molecular C—H⋯N hydrogen bond results in the quinolyl plane of the L ligand approaching and being nearly perpendicular to one of the Cp’ rings [88.09 (12)°]. In the supra­molecular structure, a one-dimensional comb-shaped infinite chain is formed approximately along the crystallographic c axis by a combination of inter­molecular C—H⋯O hydrogen bonds and locally generates a C(6) motif. Finally, pairs of inversion-related comb-shaped chains associate into a new ladder-shaped infinite chain through weak π–π stacking inter­actions between neighbouring quinolyl systems (pyridyl centroid–centroid distance = 3.853 Å).