1-[(Bromo-meth-yl)(phen-yl)meth-ylene]-2-(2,4-dinitro-phen-yl)hydrazine.

ABSTRACT: The title compound, C(14)H(11)BrN(4)O(4), comprises two crystallographically independent mol-ecules (A and B) in the asymmetric unit. In mol-ecule B, intra-molecular bifurcated N-H?O and N-H?Br hydrogen bonds and in mol-ecule A, an intra-molecular N-H?O hydrogen bond generate S(6) ring motifs. The dihedral angle between the phenyl and benzene rings is 5.44?(6) in mol-ecule A and 7.63?(6)° in mol-ecule B. The ortho- and meta-nitro substituents make dihedral angles of 6.67?(15) and 2.26?(15)° to the attached benzene ring in mol-ecule A and 6.37?(17) and 5.81?(16)° in mol-ecule B. The Br atom in mol-ecule B is disordered over two positions with a refined site-occupancy ratio of 0.61?(3):0.39?(3). Inter-esting features of the crystal structure are the short Br?N [3.257?(3)-3.294?(4)?Å], Br?O [3.279?(3)-3.307?(4)?Å] and O?O [2.9319?(16)-2.9995?(16)?Å] contacts, which are shorter than the sum of the van der Waals radii of these atoms. The crystal structure is further stabilized by inter-molecular C-H?O and ?-? inter-actions [centroid-centroid distances = 3.6643?(8)-3.8514?(8)?Å].

SUBMITTER: Salhin A 

PROVIDER: S-EPMC2969738 | biostudies-literature | 2009 May

REPOSITORIES: biostudies-literature