Acta Cryst. (2002). E58, o1436-o1438  [ doi:10.1107/S1600536802021244 ]

A second polymorph of p-nitrobenzamide

P. G. Jones, H. Thönnessen, R. Schmutzler and A. K. Fischer

Abstract: The title compound, C₇H₆N₂O₃, crystallizes as a second P2₁/c polymorph. Compared to the previously known form [Di Rienzo et al. (1977). Acta Cryst. B33, 3854-3858], the amide group is rotated much further out of the ring plane (ca 20°). The molecules are linked by symmetric three-centre N-H(O_nitro)₂, and N-HO_amide hydrogen bonds to form layers parallel to the bc plane.

Online 30 November 2002

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