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The molecule of the title compound, C16H14N2O3, is slightly non-planar, with a dihedral angle of 4.01 (1)° between the two benzene rings. In the crystal structure, molecules are linked into chains by C—H…O intermolecular hydrogen bonds. The crystal structure is stabilized by C—H…π and π-π interactions. [ABSTRACT FROM AUTHOR]

The title compound, C16H14N2O2, is non-planar, with a dihedral angle of 13.97 (8)° between the two benzene rings. There exists an intra­molecular C—H⋯O hydrogen bond, forming a six-membered ring. [ABSTRACT FROM AUTHOR]

The title compound, C15H12N2O3, is non-planar, with a dihedral angle of 83.0 (1)° between the two benzene rings. The mol­ecules are linked into a ribbon along the b axis by inter­molecular C—H⋯O and O—H⋯N hydrogen bonds. The packing is further stabilized by C—H⋯π and π–π inter­actions. [ABSTRACT FROM AUTHOR]

In the title compound, C16H15N3O2, the dihedral angle between the benzotriazole moiety and the other benzene ring is 74.40 (7)°. The short distance [3.488 (3) Å] between the centroids of benzene rings of neighbouring mol­ecules may indicate a π–π interaction, forming centrosymmetric dimers. The packing is further stabilized by van der Waals forces. [ABSTRACT FROM AUTHOR]