title: (1E)-1-(3-Bromo-phen-yl)ethanone 2,4-di-nitro-phenyl-hydrazone.
abstract: The title compound, C(14)H(11)BrN(4)O(4), contains 3-bromo-phenyl and 2,4-dinitro-phenyl groups on opposite sides of a hydrazone unit and crystallizes with two mol-ecules in the asymmetric unit. The dihedral angles between the two ring systems in each mol-ecule are 2.0 (1) and 2.5 (4)°. Weak C-H⋯O hydrogen bonds and weak π-π stacking inter-actions [centroid-centroid distance = 3.7269 (14) Å] help to establish the packing. Intra-molecular N-H⋯O hydrogen bonds are also observed. On one of the rings, the Br atom is disordered over two equivalent positions of the phenyl ring [occupancy ratio 0.8734 (10):0.1266 (10).
authors: Jerry P
authors: JP
authors: Jasinski
authors: Curtis J
authors: CJ
authors: Guild
authors: C S
authors: CS
authors: Chidan Kumar
authors: H S
authors: HS
authors: Yathirajan
authors: A N
authors: AN
authors: Mayekar
references: Acta Crystallogr C. 2004 Feb;60(Pt 2):o103-6
references: 14767127
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677
references: Acta Crystallogr Sect E Struct Rep Online. 2009 Mar 25;65(Pt 4):o833-4
references: 21582553