Received 15 April 2013
aChemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia,bCenter of Excellence for Advanced Materials Research (CEAMR), Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia, and cDepartment of Chemistry, University of Gujrat, Gujrat 50700, Pakistan
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In the title hydrate, C13H10N4O2S·H2O, the dihedral angles between the central pyrazole ring and its pendant phenyl and thiadiazole rings are 9.93 (8) and 4.56 (7)°, respectively. In the crystal, the components are linked by N-HO, O-HN and O-HO hydrogen bonds, generating  chains incorporating R44(10) loops. A weak C-HO interaction helps to consolidate the packing.
Data collection: CrysAlis PRO (Agilent, 2012); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 2012) and X-SEED (Barbour, 2001).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB7073 ).
The authors thank the deanship of scientific research at King Abdulaziz University for the support of this research via Research Group Track of Grant No. (3-102/428).
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