Received 3 June 2013
aDepartment of Studies and Research in Chemistry, Tumkur University, Tumkur Karnataka 572 103, India,bCenter for Advanced Materials and Department of Chemistry, Tumkur University, Tumkur Karnataka, 572 103, India,cDepartment of Studies and Research in Physics, U.C.S. Tumkur University, Tumkur Karnataka 572 103, India, and dDepartment of Physics, Karnatak University, Dharwad, Karnataka 580 003, India
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In the title compound, C18H20F2N2O2S, the central piperazine ring adopts a chair conformation. The dihedral angle between the two benzene rings is 40.20°, whereas those between the piperazine ring (considering the best fit plane through all the non-H atoms) and the sulfonyl-bound benzene and difluorobenzene rings are 74.96 and 86.16°, respectively. In the crystal, molecules are stacked along the a axis through weak C-HO and C-HF interactions.
Data collection: APEX2 (Bruker, 2009); cell refinement: APEX2 and SAINT-Plus (Bruker, 2009); data reduction: SAINT-Plus and XPREP (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SJ5330 ).
The authors thank Dr S. C. Sharma, Ex-Vice Chancellor, Tumkur University, for his constant encouragement. JT also thanks the DST, New Delhi, for the SCXRD facility under the PURSE Grant (SR/S9/Z-23/2008/11, 2009) at USIC, Karnatak University.
Bruker (2009). APEX2, SADABS, SAINT-Plus and XPREP. Bruker AXS Inc., Madison, Wisconsin, USA.
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Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
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Sreenivasa, S., ManojKumar, K. E., Anitha, H. C., Suchetan, P. A., Palakshamurthy, B. S., Jayashree, Y. & Tonannavar, J. (2013c). Acta Cryst. E69, o782.
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