Abstract
Benzyl N'-[(E)-2-hydroxybenzylidene]hydrazinecarboxylate, C15H14N2O3 (I) and benzyl N'-[(E)-5-bromo-2-hydroxybenzylidene]hydrazinecarboxylate (II), C15H13BrN2O3, have been synthesized by the reaction of either 2-hy-droxy-benzaldehyde or 5-bromo-2-hy-droxy-benzaldehyde with benzyl carbazate, respectively. Both the compounds crystallize in the monoclinic crystal system with space groups Pn (Z' = 1, I) and P21/c (Z' = 2, II). Mol-ecular conformations in each structure are similar, and both structures feature strong intra-molecular O-H⋯N hydrogen bonds, which form S(6) ring motifs. There are also strong N-H⋯O and weak C-H⋯O hydrogen bonds in both structures, but their modes of packing within their respective crystals are markedly different. Some comparisons are made with the structures of a few related compounds.
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Schedule a callMore From: Acta crystallographica. Section E, Crystallographic communications
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