(4Z)-4-[1-(2-Aminoanilino)ethylidene]-3-methyl-1-phenyl-4,5-dihydro-1H-pyrazol-5-one

(4Z)-4-[1-(2-Aminoanilino)ethylidene]-3-methyl-1-phenyl-4,5-dihydro-1H-pyrazol-5-one

The conformation of the title compound, C18H18N4O, is partly determined by an intramolecular N—H...O hydrogen bond that imposes planarity on the central aminoethylidene-3-methylpyrazol-5-one segment of the molecule. In the crystal, N—H...O hydrogen and N—H...N hydrogen bonds both form centrosymmetri...

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Bibliographic Details
Main Authors: Mohamed Samba, Bahia Djerrari, Mohamed Said Minnih, Youssef Ramli, El Mokhtar Essassi, Joel T. Mague
Format: Article
Language:English
Published: International Union of Crystallography 2017-02-01
Series:IUCrData
Subjects:
crystal structure
hydrogen bond
pyrazolone
π-stacking
Online Access:http://scripts.iucr.org/cgi-bin/paper?S2414314617002565
Description
Summary:The conformation of the title compound, C18H18N4O, is partly determined by an intramolecular N—H...O hydrogen bond that imposes planarity on the central aminoethylidene-3-methylpyrazol-5-one segment of the molecule. In the crystal, N—H...O hydrogen and N—H...N hydrogen bonds both form centrosymmetric dimers that enclose R22(18) rings. These, together with C—H...N and π–π stacking interactions between centrosymmetrically related pyrazalone rings, stack the molecules along the b-axis direction.
ISSN:2414-3146

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