Abstract
In the title compound, C10H9ClN4O, the pyrazole ring [maximum deviation = 0.014 (2) Å] forms a dihedral angle of 7.06 (14)° with the chlorobenzene ring. The molecular conformation is stabilized by an intramolecular N—H⋯O hydrogen bond, which generates an S(6) ring motif. In the crystal, inversion dimers linked by pairs of C—H⋯O hydrogen bonds generate R 2 2(16) ring motifs. The dimers are further connected by N—H⋯N hydrogen bonds, thereby forming layers lying parallel to the bc plane.
Highlights
In the title compound, C10H9ClN4O, the pyrazole ring [maximum deviation = 0.014 (2) Å] forms a dihedral angle of 7.06 (14) with the chlorobenzene ring
The molecular conformation is stabilized by an intramolecular N—H O
The dimers are further connected by N—H N hydrogen bonds, thereby forming layers lying parallel to the bc plane
Summary
C10H9ClN4O, the pyrazole ring [maximum deviation = 0.014 (2) Å] forms a dihedral angle of 7.06 (14) with the chlorobenzene ring. The molecular conformation is stabilized by an intramolecular N—H O hydrogen bond, which generates an S(6) ring motif. Inversion dimers linked by pairs of C—H O hydrogen bonds generate R22(16) ring motifs. The dimers are further connected by N—H N hydrogen bonds, thereby forming layers lying parallel to the bc plane. Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009)
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