Received 29 March 2012
The title compound, C16H16BrN3O2, crystallized with two independent molcules in the asymmetric unit. Each molecule has an E conformation about the C=N bond and the dihedral angles between the benzene rings are 30.5 (3) and 28.7 (3)°. In each molecule, there is an O-HN hydrogen bond and the two molecules are linked by an N-HO hydrogen bond. In the crystal, molecules are further linked via N-HO hydrogen bonds into chains propagating along .
Data collection: SMART (Bruker, 1998); cell refinement: SAINT (Bruker, 1998); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SU2400 ).
The author is grateful to the Zibo Vocational Institute for supporting this work.
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