Crystal structure, Hirshfeld surface analysis and HOMO-LUMO analysis of (E)-4-bromo-N'-(4-meth-oxy-benzyl-idene)benzohydrazide.

The title Schiff base compound, C(15)H(13)BrN(2)O(2), displays an E configuration with respect to the C=N double bond, which forms a dihedral angle of 58.06†(9)° with the benzene ring. In the crystal, the mol-ecules are linked into chains parallel to the b axis by N-H⋯O and C-H⋯O hydrogen bonds, giving rise to rings with an R (2) (1)(6) graph-set motif. The chains are further linked into a three-dimensional network by C-H⋯π inter-actions. A Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from C⋯H (33.2%), H⋯H (27.7%), Br⋯H/H⋯Br (14.2%) and O⋯H/H⋯O (13.6%) inter-actions. The title compound has also been characterized by frontier mol-ecular orbital analysis.