Tetra­kis(μ-4-chloro­phenoxy­acetato-κ²O,O′)dimolybdenum(II)

The crystal structure determination of the title compound, [Mo₂(C₈H₆ClO₃)₄], confirms the existence of a quadruple bond between the Mo atoms, with an Mo—Mo distance of 2.101 (5) Å. One half of the mol­ecule constitutes the asymmetric unit and the carboxyl­ate ligands define a paddle-wheel structure, with similar O—C—O angles of 122.9 (3) and 123.7 (3)°. The inter­planar angles between the acetate and 4-chloro­phen­oxy planes in the two independent ligands are 135.9 (8) and 91.3 (8)°, which is indicative of a dramatic difference in the orientation of the ligands.