Received 30 May 2013
aDepartment of Studies and Research in Chemistry, Tumkur University, Tumkur, Karnataka 572 103, India,bTadimety Aromatics Pvt Ltd, Hirehally Industrial Area, Tumkur, Karnataka 572 168 , India,cDepartment of Studies in Chemistry, U.C.S., Tumkur University, Tumkur, Karnataka 572 103, India,dDepartment of Studies and Research in Physics, U.C.S., Tumkur University, Tumkur, Karnataka 572 103, India, and eSoild State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India
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In the title salt, C11H17N2O2S+·CF3COO-, the cation is protonated at the secondary piperazine N atom. The dihedral angle between the benzene ring and the piperazine mean plane is 85.54 (10)°. In the crystal, cations and anions are connected by two types of strong N-HO hydrogen bonds into chains extending along . The chains are further assembled into (10-1) layers via stacking interactions between benzene rings of the cations [centroid-centroid distance = 3.7319 (13) Å] and a C-HO interaction involving a piperazine C-H group and a sulfonyl O atom. Another C-HO interaction between the piperazine ring and the sulfonyl group connects the ions into a three-dimensional network.
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: GK2578 ).
The authors thank Dr S. C. Sharma, Former Vice Chancellor, Tumkur University, Tumkur for his constant encouragement and Professor T. N. Guru Row, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, for his help and valuable suggestions. BSPM thanks Dr H. C. Devaraje Gowda, Department of Physics Yuvarajas College (constituent), University of Mysore, for his guidance.
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