1-(2,4-Dinitrophenyl)-2-[(E)-(3,4,5-trimethoxybenzylidene)]hydrazine

Abstract

Molecules of the title compound, C16H16N4O7, are not planar with a dihedral angle of 5.50(11)° between the substituted benzene rings. The two meta-methoxy groups of the 3,4,5-trimethoxybenzene moiety lie in the plane of the attached ring [Cmethyl-O-C-C torsion angles -0.1(4)° and -3.7(3)°] while the para-methoxy substituent lies out of the plane [Cmethyl - O - C - C, -86.0(3)°]. An intramolecular N - HO hydrogen bond involving the 2-nitro substituent generates an S(6) ring motif. In the crystal structure, molecules are linked by weak C - HO interactions into screw chains, that are arranged into a sheet parallel to the bc plane. These sheets are connected by π-π stacking interactions between the nitro and methoxy substituted aromatic rings with a centroid-centroid separation of 3.9420(13)Å. C - Hπ contacts further stabilize the two-dimensional network. © Chantrapromma et al. 2014.