1,1′-{2,2′-[1,4-Phenyl­enebis(methyl­ene)]bis­(­oxy)bis­(2,1-phenyl­ene)}diethanone

The asymmetric unit of the title compound, C(24)H(22)O(4), contains one half-mol­ecule, the other half being generated by a crystallographic center of inversion. The central benzene ring makes a dihedral angle of 72.49 (5)° with the terminal benzene ring. In the crystal, adjacent mol­ecules are linked through C—H⋯O inter­actions, forming a sheet structure parallel to the bc plane. The sheets are stacked along the a axis via π–π inter­actions formed between the terminal benzene rings [centroid–centroid separation = 3.7276 (6) Å].