Received 17 November 2007
aDepartment of Biology and Environmental Technology, Guiyang College, Guiyang 550005, People's Republic of China,bSchool of Chemistry and Environmental Science, Guizhou University for Nationalites, Guiyang 550025, People's Republic of China,cSchool of Computer Science and Technology, Tianjin University, Tianjin 300072, People's Republic of China, and dDepartment of Chemistry, Tianjin University, Tianjin 300072, People's Republic of China
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In the title compound, C19H17ClN4O2S, the dihedral angle between the pyrazole and phenyl rings is 43.3 (3)°. The bridging unit between the pyrazole and methoxyphenyl rings is planar within 0.0169 Å and makes dihedral angles of 2.3 and 26.4°, respectively, with these two rings. This conformation is influenced by intramolecular N-HO and N-HCl hydrogen bonds. The crystal packing is stabilized by C-H interactions.
Data collection: SMART (Bruker, 1997); cell refinement: SAINT (Bruker, 1997); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BQ2053 ).
The authors thank Guiyang College (grant No. 2007012) for financial support.
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