Acta Cryst. (2008). E64, o1774-o1775  [ doi:10.1107/S1600536808025774 ]

3-(4-Fluorophenyl)-1-[1'-(4-fluorophenyl)-2-oxo-5',6',7',7a'-tetrahydro-1H-indole-3(2H)-spiro-3'(2'H)-1H'-pyrrolizin-2'-yl]prop-2-en-1-one

S. Nirmala, R. Murugan, E. T. S. Kamala, L. Sudha and S. Sriman Narayanan

Abstract: In the title compound, C₂₉H₂₄F₂N₂O₂, one of the pyrrolidine rings of the pyrrolizine system is disordered over two sites, with occupancy factors 0.734:0.266 (12). Both components of the disordered pyrrolidine ring adopt envelope conformations, whereas the other pyrrolidine ring adopts a twist conformation. The molecules are linked into centrosymmetric dimers by N-HO hydrogen bonds and the dimers are connected via C-H interactions. The crystal structure is also stabilized by intermolecular C-HF hydrogen bonds.

Online 16 August 2008

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