Acta Cryst. (2011). E67, o2454 [ doi:10.1107/S1600536811034234 ]
Abstract: In the title compound, C19H15O2P, the dihedral angles between the benzoic acid ring and the phenyl rings are 75.64 (7) and 80.88 (7)°; the dihedral angle between the phenyl rings is 81.35 (7)°. In the crystal, inversion dimers linked by pairs of O-HO hydrogen bonds generate R22(8) loops between the head-to-head carboxylic acid groups.
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