Abstract
In the title compound, C21H23ClN2O, the dihedral angle between the benzene rings is 83.2 (6)°, while the mean plane of the pyrazole ring [r.m.s. deviation = 0.043 (1) Å] makes dihedral angles of 3.4 (3) and 86.2 (1)° with the benzene rings. In the crystal, a pair of weak C—H⋯O interactions between the benzene ring and the propan-1-one group link the molecules into an inversion dimer with an R 2 2(16) graph-set motif. In addition, a weak π–π stacking interaction [centroid–centroid distance = 3.959 (4) Å] connects the dimers into a tape running along [201].
Highlights
A pair of weak C—H O interactions between the benzene ring and the propan-1-one group link the molecules into an inversion dimer with an R22(16) graph-set motif
Supporting information for this paper is available from the IUCr electronic archives (Reference: IS5364)
The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry
Summary
R factor = 0.047; wR factor = 0.133; data-to-parameter ratio = 15.3. C21H23ClN2O, the dihedral angle between the benzene rings is 83.2 (6) , while the mean plane of the pyrazole ring [r.m.s. deviation = 0.043 (1) Å] makes dihedral angles of 3.4 (3) and 86.2 (1) with the benzene rings. A pair of weak C—H O interactions between the benzene ring and the propan-1-one group link the molecules into an inversion dimer with an R22(16) graph-set motif. Centroid distance = 3.959 (4) Å] connects the dimers into a tape running along [201]
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