M. Tahir, H. Shad, M. N. Khan
Oct 23, 2010
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
There are two geometrically different molecules in the asymmetric unit of the title compound, C14H9Cl2NO3. The 5-amino-2-hydroxybenzoic acid units [r.m.s. deviations of 0.0323 and 0.0414 Å] and 2,6-dichlorobenzaldehyde groups [r.m.s. deviations of 0.0285 and 0.0226 Å] are roughly planar and oriented at dihedral angles of 11.69 (13) and 83.12 (6)° in the two molecules. An intramolecular O—H⋯O hydrogen bond completes an S(6) ring motif in each molecule. The two molecules form dimers with each other through intermolecular O—H⋯N and C—H⋯O hydrogen bonds, completing an R 2 2(8) ring motif. The dimers are interlinked via intermolecular O—H⋯N and C—H⋯O hydrogen bonds, forming polymeric sheets.