Received 28 October 2013
aDepartment of Chemistry, St. Joseph's College, Irinjalakuda, India,bDepartment of Chemistry, Faculty of Science, Eastern University, Sri Lanka, Chenkalady, Sri Lanka, and cDepartment of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India
Correspondence e-mail: firstname.lastname@example.org
The title compound, C15H13BrN2O3·H2O, exists in an E conformation with respect to the azomethane C=N double bond. The benzene and phenyl rings form dihedral angles of 0.46 (2) and 4.90 (3)°, respectively with the central C(=O)N2C unit. An intramolecular O-HN hydrogen bond occurs. In the crystal, some hydrazide molecules are replaced by molecules of the 6-bromo isomer. The Br atom from this admixture was refined to give a partial occupancy of 0.0443 (19). A supramolecular network is built in the lattice by means of intermolecular N-HO and two O-HO interactions together with non-classical C-HO interactions involving the lattice water molecule stacking the molecules along the b-axis direction.
For biological applications of benzohydrazones and derivatives, see: Sreeja et al. (2004); Rada & Leto (2008); Rakha et al. (1996); Takahama (1996). For the synthesis of related compounds, see: Emmanuel et al. (2011). For a related structure, see Reshma et al. (2012).
Data collection: APEX2 (Bruker, 2004); cell refinement: APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 and publCIF (Westrip, 2010).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HG5359 ).
The authors are grateful to the Sophisticated Analytical Instruments Facility, Cochin University of Science and Technology, Kochi-22, India, for the single-crystal X-ray diffraction measurements. The authors are grateful to Dr Matthias Zeller, Department of Chemistry, Youngstown State University, for support with the data refinement.
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