Acta Cryst. (2009). E65, o1233-o1234  [ doi:10.1107/S1600536809015487 ]

4-tert-Butylamino-3-nitrobenzoic acid

S. N. Narendra Babu, A. S. Abdul Rahim, S. Abd Hamid, S. R. Jebas and H.-K. Fun

Abstract: In the title compound, C₁₁H₁₄N₂O₄, all non-H atoms lie in a mirror plane except for one of the methyl groups which deviates from the mirror plane by 0.919 (3) Å and is twisted by a torsion angle of 62.9 (2)°. An intramolecular N-HO hydrogen bond generates an S(6) ring motif. In the crystal packing, the molecules are linked together by O-HO hydrogen bonds, forming dimers with graph-set motif R₂²(8) which propagate along the a-axis direction. C-HO contacts link adjacent dimers with a graph-set motif C₂²(7), forming chains along b, and further consolidate the structure into a three-dimensional network. The crystal packing is further strengthened by short intermolecular OO=C [2.655 (4) Å] contacts.

Online 7 May 2009

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