Crystal structure of ethyl 2-(1H-benzimidazol-2-yl)-2-[2-(4-nitrophenyl)hydrazinylidene]acetate

Abstract

The title compound, C17H15N5O4, was obtained via the condensation of 3-ethoxy-2-[2-(4-nitrophenyl)hydrazono]-3-oxopropanoic acid with 1,2-diaminobenzene. In the molecule, the dihedral angles between the acetate group and the two aromatic subunits (benzimidazole and nitrophenylhydrazone) are 7.35 (9) and 18.23 (9)°, respectively. Intramolecular N—H...O and N—H...N contacts occur. In the crystal, C—H...O and N—H...O hydrogen bonds link the molecules into chains along the b-axis direction.

Keywords

• crystal structure
• benzimidazole
• nitrophenylhydrazone
• hydrogen bonding