Received 9 December 2011
aDepartment of Chemistry, Payame Noor University, PO BOX 19395-3697 Tehran, I.R. of Iran,bX-ray Crystallography Lab., Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran,cDepartment of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran, and dDepartment of Physics, University of Sargodha, Punjab, Pakistan
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In the title compound, C19H18Cl4N2O2, a potential tetradentate Schiff base ligand, the dihedral angle between the two benzene rings is 48.01 (10)°. The configuration about the two C=N bonds is E and two intramolecular O-HN hydrogen bonds make S(6) ring motifs. In the crystal, molecules are linked along the b axis via intermolecular C-HCl interactions. The crystal structure is further stabilized by an intermolecular - interaction [centroid-centroid distance = 3.5744 (12) Å].
Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2005); 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 and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SU2348 ).
HK and SA thank PNU for financial support. MNT thanks GC University of Sargodha, Pakistan, for research facilities.
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