[μ-3-(8-Quinolyloxy)propanediyl]bis[dicarbonyl(η5-methoxycarbonylcyclopentadienyl)molybdenum(III)]

Abstract

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).