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 (A and B) 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-ecules A and B, respectively. In mol-ecule A, the meth-oxy group is twisted slightly relative to its bound benzene ring, with a C_meth-yl-O-C-C torsion angle of 14.2?(3)°, whereas it is almost co-planar in mol-ecule B, 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 the bc plane. 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-related B mol-ecules are stacked approximately along the a axis by ?-? inter-actions in which the distance between the centroids of the 3-meth-oxy-phenyl rings is 3.5388?(12)?Å. The B mol-ecules also participate in weak C-H?? inter-actions between the 4-hy-droxy-phenyl and the 3-meth-oxy-phenyl rings.

SUBMITTER: Chantrapromma S 

PROVIDER: S-EPMC5120720 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature