Ethyl 5-{[(E)-2-(isonicotinoyl)hydrazinylidene]methyl}-3,4-dimethyl-1H-pyrrole-2-carboxylate dihydrate

In the title compound, C16H18N4O3·2H2O, the dihedral angle between the pyrrole and pyridine rings in the hydrazone molecule is 7.12 (3)°. In the crystal structure, intermolecular N—H...O, O—H...N and O—H...O hydrogen bonds link the hydrazone...

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Bibliographic Details
Published inActa crystallographica. Section E, Structure reports online Vol. 67; no. 6; p. o1413
Main Authors Zhao-Po Zhang, Yuan Wang, Ming-Jia Lu, Lei-Wei Jia, Hong-Chang Qiao
Format Journal Article
LanguageEnglish
Published International Union of Crystallography 01.06.2011
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Summary:In the title compound, C16H18N4O3·2H2O, the dihedral angle between the pyrrole and pyridine rings in the hydrazone molecule is 7.12 (3)°. In the crystal structure, intermolecular N—H...O, O—H...N and O—H...O hydrogen bonds link the hydrazone and water molecules into double layers parallel to (101). The crystal packing exhibits weak π–π interactions between the pyrrole and pyridine rings of neighbouring hydrazone molecules [centroid–centroid distance = 3.777 (3) Å]. The crystal studied was a non-merohedral twin, the refined ratio of twin domains being 0.73 (3):0.27 (3).
ISSN:1600-5368
1600-5368
DOI:10.1107/S1600536811017132