Crystal structure and Hirshfeld surface analysis of 3-cyano­phenyl­boronic acid

In the title compound, C(7)H(6)BNO(2), the mean plane of the –B(OH)(2) group is twisted by 21.28 (6)° relative to the cyano­phenyl ring mean plane. In the crystal, mol­ecules are linked by O—H⋯O and O—H⋯N hydrogen bonds, forming chains propagating along the [101] direction. Offset π–π and B⋯π stacking inter­actions link the chains, forming a three-dimensional network. Hirshfeld surface analysis shows that van der Waals inter­actions constitute a further major contribution to the inter­molecular inter­actions, with H⋯H contacts accounting for 25.8% of the surface.