Research Article: 2-{(E)-1-[2-(4-Nitro­phen­yl)hydrazin-1-yl­idene]eth­yl}benzene-1,3-diol

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): R. Alan Howie, James L. Wardell, Solange M. S. V. Wardell, Edward R. T. Tiekink.

http://doi.org/10.1107/S1600536812005399

Abstract

The title compound, C14H13N3O4, is close to planar, the dihedral angle between the terminal benzene rings being 5.80 (16)°; the nitro group is coplanar with the benzene ring to which it is bonded [O—N—C—C torsion angle = −177.3 (3)°]. The hy­droxy group forms an intra­molecular hydrogen bond with the imine N atom, and the conformation about the imine bond is E. In the crystal, layers in the (101) plane with an undulating topology are formed by O—H⋯O and N—H⋯O hydrogen bonds along with C—H⋯O inter­actions. Centrosymmetrically related layers are connected via π–π inter­actions [ring centroid–centroid distance = 3.5739 (19) Å] into double layers.

Partial Text

For background on the influence of substituents upon the supra­molecular structures of hydrazones, see: Glidewell et al. (2004 ▶); Ferguson et al. (2005 ▶); Wardell et al. (2007 ▶); Baddeley, de Souza França et al. (2009 ▶); Baddeley, Howie et al. (2009 ▶); de Souza et al. (2010 ▶); Howie, da Silva Lima et al. (2010 ▶); Howie, de Souza et al. (2010 ▶); Nogueira et al. (2011 ▶); Howie et al. (2011 ▶).

 

Source:

http://doi.org/10.1107/S1600536812005399