N-(4-Bromo­phen­yl)acetamide: a new polymorph

A new polymorph of the title compound, C₈H₈BrNO, has been determined at 173 K in the space group P2₁/c. The previous room-temperature structure was reported to crystallize in the ortho­rhom­bic space group Pna2₁ [Andreetti et al. (1968). Acta Cryst. B24, 1195–1198]. In the crystal, mol­ecules are linked by N—H...O hydrogen bonds forming chains along [010]. Weak C—H...π inter­actions are also present.