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Abstract
The asymmetric unit of the title compound, C11H12N2O, consists of two crystallographically independent molecules (A and B) with similar geometries. Both molecules exist in a keto form, the C=O bond length being 1.286 (2) Å in A and 1.283 (2) Å in B. The dihedral angles between the pyrazole ring and the attached phenyl ring are 43.28 (12) and 46.88 (11)°, respectively, for A and B. The ethyl unit in molecule B is disordered over two positions with a site-occupancy ratio of 0.508 (5):0.492 (5). In the crystal, each of the independent molecules forms a centrosymmetric dimer with an R 2 2(8) ring motif through a pair of N—H⋯O hydrogen bonds. These dimers are further connected into a three-dimensional network by intermolecular N—H⋯O and C—H⋯O hydrogen bonds. Intermolecular C—H⋯π interactions are also present.
Highlights
The asymmetric unit of the title compound, C11H12N2O, consists of two crystallographically independent molecules (A and B) with similar geometries
Both molecules exist in a keto form, the C O bond length being 1.286 (2) Å in A and
The dihedral angles between the pyrazole ring and the attached phenyl ring are 43.28 (12) and
Summary
The asymmetric unit of the title compound, C11H12N2O, consists of two crystallographically independent molecules (A and B) with similar geometries. Both molecules exist in a keto form, the C O bond length being 1.286 (2) Å in A and. Each of the independent molecules forms a centrosymmetric dimer with an R22(8) ring motif through a pair of N—H O hydrogen bonds. These dimers are further connected into a threedimensional network by intermolecular N—H O and C—.
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