A spiro‐linked pyrene–naphtho­quinone

The title mol­ecule, 2′‐pyrenyl­spiro­[2,3‐di­hydro‐1H‐cyclo­penta­[b]­naphthalene‐2,5′‐1′,3′‐dioxane]‐4,9‐dione, C₃₂H₂₂O₄, contains an electron‐donating pyrene group spiro‐linked to an electron‐accepting naphtho­quinone. The mol­ecules are V‐shaped in profile and stack to form columns along b with alternating, approximately coplanar, pyrene and naphtho­quinone fragments. Intermolecular contacts within a column are consistent with some degree of π contact and possible long‐range delocalization. Individual columns form a herringbone pattern when the crystal is viewed along b .