2,2′,2′′-[(2,4,6-Trimeth­oxy­benzene-1,3,5-tri­yl)tris­(methyl­ene)]tris­(isoindole-1,3-dione)

The title mol­ecule, C₃₆H₂₇N₃O₉, adopts an almost symmetric conformation in which the mean planes of the phthalimido units are inclined at dihedral angles of 81.1 (1), 85.3 (1) and 86.3 (1)° with respect to the plane of the central aromatic ring. The O atoms are involved in intra- and inter­molecular C—H...O hydrogen bonding. The crystal structure also features π–π arene inter­actions [minimum ring centroid separation = 3.683 (2) Å]. The present mode of non-covalent interactions leads to a three-dimensional supramolecular architecture.