Received 17 May 2013
aDepartment of Physics, Meenakshi College of Engineering, West K.K. Nagar, Chennai 600 078, India,bIndustrial Chemistry Lab, Central Leather Research Institute, Adyar, Chennai 600 020, India, and cDepartment of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004, India
Correspondence e-mail: email@example.com
In the central aza-bicyclooctane unit of the title compound, C40H34N4O3·0.75H2O, the peripheral pyrrolidine ring adopts an envelope conformation with the N atom deviating by 0.209 (2) Å, whereas the other pyrrolidine ring adopts a twisted conformation with the bridging N and C atoms deviating by -0.218 (2) and 0.236 (3) Å, respectively, from the rest of the ring. The pyrazole ring forms dihedral angles of 42.36 (7) and 24.07 (8)° with its C- and N-attached phenyl groups, respectively. The solvent water molecule has a partial occupancy of 0.75. In the crystal, the water molecules link the fused-ring molecules into chains along the b axis via O-HN and O-HO hydrogen bonds. The crystal packing is further stabilized by C-H interactions involving a methylene group of the pyran ring and the C-attached benzene ring on the pyrazole ring.
For the biological activity of pyrazole derivatives, see: Mahajan et al. (1991); Baraldi et al. (1998); Katayama & Oshiyama (1997); Chen & Li (1998). For a related structure, see: Jagadeesan et al. (2013). For puckering parameters, see: Cremer & Pople (1975).
Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LD2105 ).
The authors thank Dr Babu Varghese, SAIF, IIT, Chennai, India, for the data collection. KS thanks the University Grant Commission (UGC), India, for a Minor Research Project.
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