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Crystal structures of 4-[(4-methylbenzyl)oxy]benzohydrazide and its N′-[(thiophen-2-yl)methylidene]- derivative
The molecular and crystal structures of a benzoylhydrazine bearing an ether group, 4-[(4-methylbenzyl)oxy]benzohydrazide, C(15)H(16)N(2)O(2), (I), and of the corresponding N′-[(thiophen-2-yl)methylidene]- derivative, 4-[(4-methylbenzyl)oxy]-N′-[(thiophen-2-yl)methylidene]benzohydrazide...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9993917/ https://www.ncbi.nlm.nih.gov/pubmed/36909983 http://dx.doi.org/10.1107/S2056989023001354 |
Sumario: | The molecular and crystal structures of a benzoylhydrazine bearing an ether group, 4-[(4-methylbenzyl)oxy]benzohydrazide, C(15)H(16)N(2)O(2), (I), and of the corresponding N′-[(thiophen-2-yl)methylidene]- derivative, 4-[(4-methylbenzyl)oxy]-N′-[(thiophen-2-yl)methylidene]benzohydrazide, C(20)H(18)N(2)O(2)S, (II), are described. The supramolecular structures of both compounds are governed by N—H⋯N and N—H⋯O hydrogen-bonding interactions. The hydrazine compound (I) shows a crystal packing with a more complex hydrogen-bonding scheme because of the NH—NH(2) entity, forming a di-periodic supramolecular structure extending parallel to (100). Hydrazone molecules in (II) are hydrogen-bonded through N—H⋯O interactions, giving rise to the formation of ribbons parallel to [010]. Molecules of (I) and (II) show a different orientation of the carbohydrazide moiety likely to favor the crystal packing and thus hydrogen-bonding interactions. |
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