title: (E)-1-(2,4-Di-nitro-phen-yl)-2-(3-eth-oxy-4-hy-droxy-benzyl-idene)hydrazine.
abstract: The mol-ecule of the title hydrazine derivative, C15H14N4O6, is essentially planar, the dihedral angle between the substituted benzene rings being 2.25 (9)°. The eth-oxy and hy-droxy groups are almost coplanar with their bound benzene ring [r.m.s. deviation = 0.0153 (2) Å for the ten non-H atoms]. Intra-molecular N-H⋯O and O-H⋯Oeth-oxy hydrogen bonds generate S(6) and S(5) ring motifs, respectively. In the crystal, mol-ecules are linked by O-H⋯Onitro hydrogen bonds into chains propagating in [010]. Weak aromatic π-π inter-actions, with centroid-centroid distances of 3.8192 (19) and 4.0491 (19) Å, are also observed.
authors: X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
authors: Hoong-Kun
authors: HK
authors: Fun
authors: Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
authors: Suchada
authors: S
authors: Chantrapromma
authors: Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
authors: Pumsak
authors: P
authors: Ruanwas
authors: Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
authors: Thawanrat
authors: T
authors: Kobkeatthawin
authors: X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
authors: C S
authors: CS
authors: Chidan Kumar