Affiliations 

  • 1 BioMat-Departmento de Física, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil
  • 2 Instituto de Química, Universidade Estadual de Campinas, CP 6154, 13083-970 Campinas, SP, Brazil
  • 3 Departmento de Qímica, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil
  • 4 Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
Acta Crystallogr Sect E Struct Rep Online, 2014 Sep 01;70(Pt 9):o1051-2.
PMID: 25309220 DOI: 10.1107/S1600536814018819

Abstract

In the title compound, C17H14N2O6, the conformation about the C=C double bond [1.345 (2) Å] is E, with the ketone moiety almost coplanar [C-C-C-C torsion angle = 9.5 (2)°] along with the phenyl ring [C-C-C-C = 5.9 (2)°]. The aromatic rings are almost perpendicular to each other [dihedral angle = 86.66 (7)°]. The 4-nitro moiety is approximately coplanar with the benzene ring to which it is attached [O-N-C-C = 4.2 (2)°], whereas the one in the ortho position is twisted [O-N-C-C = 138.28 (13)°]. The mol-ecules associate via C-H⋯O inter-actions, involving both O atoms from the 2-nitro group, to form a helical supra-molecular chain along [010]. Nitro-nitro N⋯O inter-actions [2.8461 (19) Å] connect the chains into layers that stack along [001].

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.