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. 2013 Jan 1;69(Pt 1):o46-7.
doi: 10.1107/S160053681204963X. Epub 2012 Dec 8.

2-(2,6-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-(2,6-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 title compound, C19H17Cl2N3O2, the amide group is planar and, through N-H⋯O hydrogen bonding to an adjoining mol-ecule, forms dimers of the R2(2)(10) type. 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 71.63 (11) and 57.93 (10)°, respectively. The dihedral angle between the dichloro-phenyl and 2,3-dihydro-1H-pyrazol-4-yl rings is 76.60 (10)° while that between the 2,3-dihydro-1H-pyrazol-4-yl and phenyl rings is 49.29 (7)°. The crystal structure also features weak C-H⋯O inter-actions.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title molecule with the atom numbering. The displacement ellipsoids are drawn at the 30% probability level.
Fig. 2.
Fig. 2.
The crystal packing of the title compound, viewed along the a axis. Hydrogen bonds are shown as dashed lines - see Table 1 for details.
See this image and copyright information in PMC

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