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. 2013 Jan 1;69(Pt 1):o39.
doi: 10.1107/S1600536812049628. Epub 2012 Dec 8.

2-(2,4-Dichloro-phen-yl)-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)acetamide

Ray J Butcher  1 , Aneeka Mahan, P S Nayak, B Narayana, H S Yathirajan
Affiliations

2-(2,4-Dichloro-phen-yl)-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)acetamide

Ray J Butcher et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the crystal structure of the title compound, C19H17Cl2N3O2, the mol-ecules form dimers of the R2(2)(10) type through N-H⋯O hydrogen bonding. As a result of steric repulsion, the amide group is rotated with respect to both the dichloro-phenyl and 2,3-dihydro-1H-pyrazol-4-yl rings, making dihedral angles of 80.70 (13) and 64.82 (12)°, respectively. The dihedral angle between the dichloro-phenyl and 2,3-dihydro-1H-pyrazol-4-yl rings is 48.45 (5)° while that between the 2,3-dihydro-1H-pyrazol-4-yl and phenyl rings is 56.33 (6)°.

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Figures

Fig. 1.
Fig. 1.
View of the molecular structure of the title compound with the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level for non-hydrogen atoms.
Fig. 2.
Fig. 2.
The packing view viewed along the a axis. Dashed lines indicate intermolecular N—H···O hydrogen bonds (see Table 1 for details).
See this image and copyright information in PMC

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