Acta Cryst. (2013). C69, 1541-1544 [ doi:10.1107/S0108270113030771 ]
Synopsis: In 1,8-dibenzoyl-2,7-dihydroxynaphthalene, centrosymmetric dimeric aggregates arise from two intra- and intermolecular O-HO=C hydrogen bonds, forming head-to-tail square-shaped cyclic OHOH hydrogen bonds. These dimeric aggregates are connected into layers in the bc plane by intermolecular (naphthalene)C-HO=C interactions.
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