Date Published: April 01, 2012
Publisher: International Union of Crystallography
Author(s): Weerawat Sripet, Suchada Chantrapromma, Pumsak Ruanwas, Hoong-Kun Fun.
In the title compound, C14H11BrN2O4, the amide segment makes dihedral angles of 23.4 (2) and 20.5 (2)° with the benzene rings, while the dihedral angle between the bezene rings is 2.90 (8)°. The nitro and methoxy groups are almost coplanar with their bound benzene ring, with the r.m.s. deviation for the 11 non-H atoms being 0.0265 (1) Å. An intramolecular N—H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, molecules are linked into [2-10] chains by weak C—H⋯O and C—H⋯Br interactions, which form an R22(8) motif between pairs of molecules in the chain. A Br⋯O [3.2018 (12) Å] short contact also occurs.
For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For related structures, see: Johnston & Taylor (2011 ▶); Li & Cui (2011 ▶); Saeed et al. (2008) ▶. For the stability of the temperature controller used in the data collection, see Cosier & Glazer (1986 ▶). For standard bond lengths, see: Allen et al. (1987 ▶).