Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 4 (April 2013)

organic compounds

Acta Cryst. (2013). E69, o493-o494    [ doi:10.1107/S1600536813005825 ]


J. Murugan, J. Haribabu, B. S. R. Reddy, G. Rajarajan and S. Murugavel

Abstract: In the title compound, C40H29N3O3S, the pyran ring adopts a sofa conformation, the thia­zolidine ring adopts a twisted conformation and the pyrrolidine ring adopts an envelope conformation with the N atom as the flap. The pyrazole ring is essentially planar [maximum deviation = 0.002 (2) Å] and forms dihedral angles of 4.8 (1) and 39.0 (1)°, respectively, with the benzene rings attached to the N and C atoms. The acenapthylene ring system is approximately planar [maximum deviation = 0.058 (2) Å] and forms dihedral angles of 85.9 (1) and 48.5 (1)°, respectively, with the pyrollothia­zole and chromene ring systems. The mol­ecular conformation is stabilized by three weak intra­molecular C-H...O hydrogen bonds, which generate one S(8) and two S(6) ring motifs. In the crystal, pairs of C-H...O hydrogen bonds link centrosymmetrically related mol­ecules into dimers, generating R22(14) ring motifs. The crystal packing also features pairs of C-H...[pi] inter­actions, which link the dimers into a supra­molecular chain along the b axis.

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