Article thumbnail


By Sohail Saeed, Naghmana Rashid, Seik Weng Ng and Edward R. T. Tiekink


The central acetyl­acetamide moiety in the title compound, C14H9N3O6, is buckled [e.g. the C—N—C—O torsion angle is 14.3 (6)°] but the r.m.s. deviation for the five atoms is 0.044 Å. The benzene rings lie on the same side of the central plane, forming dihedral angles of 37.17 (15) and 28.58 (19)° with it. The dihedral angle between the two rings is 17.8 (2)° indicating that the mol­ecule is curved. The carbonyl groups are syn to each other and anti to the amino H atom. This allows for the formation of N—H⋯O hydrogen bonds in the crystal, which leads to twisted chains along the b axis. Positional disorder (50:50) of the O atoms was modelled for both the nitro groups

Topics: Organic Papers
Publisher: International Union of Crystallography
OAI identifier:
Provided by: PubMed Central

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.

Suggested articles


  1. (2010). A view in projection down the a axis of the crystal packing in (I), highlighting the undulating layers. The N—H···O hydrogen bonding is shown as orange dashed lines. 4-Nitro-N-(4-nitrobenzoyl)benzamide Crystal data
  2. (2010). CrysAlis PRO. Agilent Technologies,
  3. (2011). organic compounds o1194 Saeed et al. doi:10.1107/S1600536811014450 Acta Cryst.