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. 2010 Aug 11;66(Pt 9):o2282-3.
doi: 10.1107/S1600536810031223.

Ethyl 1,5-diphenyl-1H-pyrazole-4-carboxyl-ate

Hoong-Kun Fun, Ching Kheng Quah, B Chandrakantha, Arun M Isloor, Prakash Shetty

Ethyl 1,5-diphenyl-1H-pyrazole-4-carboxyl-ate

Hoong-Kun Fun et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The asymmetric unit of the title compound, C(18)H(16)N(2)O(2), contains two independent mol-ecules (A and B). In mol-ecule A, the pyrazole ring is inclined at angles of 48.86 (6) and 60.80 (6)° with respect to the two phenyl rings; the corresponding angles for mol-ecule B are 46.86 (6) and 58.63 (6)°. In the crystal, mol-ecules of type A are linked into sheets parallel to (001) via weak C-H⋯O hydrogen bonds, whereas the mol-ecules of type B are linked into chains along [010] via weak C-H⋯O hydrogen bonds.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title compound showing 50% probability displacement ellipsoids for non-H atoms and the atom-numbering scheme.
Fig. 2.
Fig. 2.
Part of the crystal structure of the title compound, viewed approximately along the a axis. H atoms not involved in hydrogen bonds (dashed lines) have been omitted for clarity.
Fig. 3.
Fig. 3.
The crystal packing of molecules of type A, viewed along the c axis. H atoms not involved in hydrogen bonds (dashed lines) have been omitted for clarity.
See this image and copyright information in PMC

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