Acta Cryst. (2004). E60, o873-o875  [ doi:10.1107/S1600536804009006 ]

1'-(4-Methoxybenzoyl)acenaphthene-1-spiro-3'-pyrrolizidine-2'-spiro-3''-1H-indole-2,2''(1H,3''H)-dione

M. M. Govind, S. Selvanayagam, D. Velmurugan, K. Ravikumar, A. R. Sureshbabu and R. Raghunathan

Abstract: The N-C and C-C bond distances in the pyrrolizidine moiety of the title compound, C₃₃H₂₆N₂O₄, are slightly longer than the normal values. This is due to the steric forces caused by bulky substituents on the pyrrolizidine ring system. The acenaphthene ketone O atom is -0.214  (3)  Å from the acenaphthene plane, while the indole ketone O atom is displaced by only 0.004  (3)  Å from the indole plane. The molecular structure is stabilized by intramolecular C-HO interactions. The crystal packing is stabilized by C-HO intermolecular interactions.

Online 30 April 2004

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