Bustos, C.Alvarez-Thon, L.Barría, D.Garland, M.Sánchez, C.2023-08-032023-08-032011-07Acta Crystallographica Section E: Structure Reports Online, Volume 67, Issue 7, Pages o1587, July 20111600-5368https://repositorio.unab.cl/xmlui/handle/ria/52197Indexación: Scopus.In the mol-ecular structure of the title compound, C 21H 15N 3O 4, the inter-planar angle between the benzoyl units is 89.7 (1)°. The corresponding angles between the phenyl-hydrazono and the benzoyl groups are 31.4 (3) and 60.8 (2)°, respectively. In the crystal, a strong resonance-assisted intra-molecular hydrogen bond (N - H⋯O) and a weak intra-molecular hydrogen bond (C - H⋯N) strongly affect the observed conformation of the mol-ecule. The crystal packing is determined by a strong inter-molecular hydrogen bond (N - H⋯O), giving rise to a helical chain along the a axis. In addition, two weak inter-molecular contacts (C - H⋯O) are observed.enmolecular structureC 21H 15N 3O 4benzoyl unitsphenyl-hydrazonobenzoyl groupsArtículoAttribution 2.0 UK: England & Wales (CC BY 2.0 UK)10.1107/S1600536811021143