| Summary: | The planes of the two benzene rings in the molecule of the title compound, C13H11BF2O3, form a dihedral angle of 76.06 (3)°; the C—O—C—C torsion angle characterizing the conformation of the central link of the molecule is −79.20 (1)°. The dihydroxyboron group is not coplanar with the benzene ring bonded to the B atom; one of the C—C—B—O torsion angles is 32.39 (2)°. One of the OH groups of the boronic acid fragment is engaged in an intramolecular hydrogen bond, whereas the second OH group participates in intermolecular hydrogen bonding, which leads to the formation of centrosymmetric dimers.
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