Syntheses and crystal structures of benzyl N′-[(E)-2-hydroxybenzyl­idene]hydrazine­carboxylate and benzyl N′-[(E)-5-bromo-2-hydroxybenzyl­idene]hydrazine­carboxylate

Vinaya and Basavaraju, Y. B. and Lakshmana, B. and Yathirajan, H. S. and Parkin, Sean (2022) Syntheses and crystal structures of benzyl N′-[(E)-2-hydroxybenzyl­idene]hydrazine­carboxylate and benzyl N′-[(E)-5-bromo-2-hydroxybenzyl­idene]hydrazine­carboxylate. Acta Crystallographica Section E, 78 (10). pp. 1010-1015. ISSN 2056-9890

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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-hy­droxy­benzaldehyde or 5-bromo-2-hy­droxy­benzaldehyde 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). Mol­ecular conformations in each structure are similar, and both structures feature strong intra­molecular 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.

Item Type:	Article
Uncontrolled Keywords:	crystal structure, benzylidene hydrazine, benzaldehydehydrazone, absolute structure
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	C Swapna Library Assistant
Date Deposited:	01 Oct 2022 05:51
Last Modified:	01 Oct 2022 05:51
URI:	http://eprints.uni-mysore.ac.in/id/eprint/17381

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