2-Hydroxy-N-(3-nitrophenyl)benzamide

N-(4-Hydroxyphenyl)-4-nitrobenzamide

The mol­ecular structure of the title compound, C₁₃H₁₀N₂O₄, shows an almost planar conformation as the benzene rings make a dihedral angle of 2.31 (7)°. The nitro group lies in plane with the benzamide ring, with a C—C—N—O torsion angle of 0.6 (2)°. In the crystal, N—H⋯O and O—H⋯O hydrogen bonds link mol­ecules into sheets stacked along [10-1].

2-Hydroxy-N-(4-methylphenyl)benzamide

In the crystal structure of the title compound, C₁₄H₁₃NO₂, the mol­ecules are approximately planar, the r.m.s. deviation for all non-H atoms being 0.0435 Å; the dihedral angle between the two rings is 3.45 (12)°. The planarity is accounted for in terms of the presence of intra­molecular N—H⋯O and C—H⋯O hydrogen bonding, each of which completes an S(6) ring motif. The mol­ecules are stabilized in the form of supra­molecular chains extending along the crystallographic c axis due to inter­molecular O—H⋯O and C—H⋯O hydrogen bonding; each type leads to an R₂¹(6) ring motif.