3,3′-Dibenzyl-3,3′-dihydr­oxy-[2,2′-bi-1H-indene]-1,1′-dione

The title compound, C32H24O4, was synthesized by the reaction of benzyl­magnesium bromide with 2,2′-biindanyl­idene-1,1′,3,3′-tetra­one. The mol­ecule lies across a crystallographic inversion centre. The cyclo­pentenone ring adopts a flattened envelope conformation.