title: Crystal structure of (E)-4-hy-droxy-N'-(3-meth-oxy-benzyl-idene)benzohydrazide.
abstract: The title compound, C15H14N2O3, crystallizes with two independent mol-ecules (AandB) in the asymmetric unit that differ in the orientation of the 3-meth-oxy-phenyl group with respect to the methyl-idenebenzohydrazide unit. The dihedral angles between the two benzene rings are 24.02 (10) and 29.30 (9)° in mol-eculesAandB, respectively. In mol-eculeA, the meth-oxy group is twisted slightly relative to its bound benzene ring, with a Cmeth-yl-O-C-C torsion angle of 14.2 (3)°, whereas it is almost co-planar in mol-eculeB, where the corresponding angle is -2.4 (3)°. In the crystal, the mol-ecules are linked by N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds, as well as by weak C-H⋯O inter-actions, forming sheets parallel to thebcplane. The N-H⋯O hydrogen bond and weak C-H⋯O inter-action link different mol-ecules (A⋯B) whereas both O-H⋯N and O-H⋯O hydrogen bonds link like mol-ecules (A⋯A) and (B⋯B). Pairs of inversion-relatedBmol-ecules are stacked approximately along theaaxis by π-π inter-actions in which the distance between the centroids of the 3-meth-oxy-phenyl rings is 3.5388 (12) Å. TheBmol-ecules also participate in weak C-H⋯π inter-actions between the 4-hy-droxy-phenyl and the 3-meth-oxy-phenyl rings.
authors.affiliation: Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
authors.forename: Suchada
authors.initials: S
authors.lastname: Chantrapromma
authors.affiliation: Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
authors.forename: Patcharawadee
authors.initials: P
authors.lastname: Prachumrat
authors.affiliation: Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
authors.forename: Pumsak
authors.initials: P
authors.lastname: Ruanwas
authors.affiliation: Department of Basic Science and Mathematics, Faculty of Science, Thaksin University, Muang, Songkhla 90000, Thailand.
authors.forename: Nawong
authors.initials: N
authors.lastname: Boonnak
authors.affiliation: School of Chemical Sciences & Food Technology, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia; Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia.
authors.forename: Mohammad B
authors.initials: MB
authors.lastname: Kassim
keywords: Benzohydrazides; X-ray; crystal structure; α-glucosidase inhibitory