Acta Cryst. (2001). E57, o596-o598  [ doi:10.1107/S160053680100914X ]

2,5-Diphenyl-3,6-dihydroxy-1,4-benzoquinone (polyporic acid)

P. A. Cohen and P. D. Robinson

Abstract: The title compound, C₁₈H₁₂O₄, is a naturally occurring product found in several genera of fungi and lichens. Its structure is composed of a 1,4-benzoquinone moiety 2,5-disubstituted with phenyl rings and 3,6-disubstituted with hydroxyl groups. The angle between the planes of the phenyl rings and that of the benzoquinone is 45.24 (8)°. Intermolecular hydrogen bonding produces infinite molecular chains. The molecule has crystallographic inversion symmetry.

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