(2-Chloro­anilino)acetophenone

The title compound, C₁₄H₁₂ClNO, is used in perfumery, as a catalyst for the polymerization of olefins, and in organic synthesis, especially as a photosensitizer and in the manufacture of dyes. The mol­ecule is essentially planar and has a trans configuration. In this configuration, the Cl and O atoms shield the amino H atom, preventing the formation of an inter­molecular hydrogen bond.

Inter­molecularly associated carboxylic acid dimers in the supramolecular assembly of 2-(2-phenyl­ethyl)benzoic acid

The mol­ecular structure of the title acid, C₁₅H₁₄O₂, exhibits a trans-planar arrangement of the aromatic rings. The carboxyl group is inclined at an angle of 6.4 (1)° with respect to the attached benzene ring. The classical hydrogen-bonded carboxylic acid dimers (O...O = 2.7 Å), characterized by an R²₂(8) pattern, predominantly stabilize the supramolecular assembly.