(IUCr) Crystallography Journals Online

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Acta Cryst. (2005). E61, o3312-o3314 [ doi:10.1107/S1600536805029107 ]

Hydrogen bonding in 1'-nitro-2'-phenyl-2',3',4',5',6',7'-hexahydro-1H-indole-3-spiro-3'-1'H-pyrrolizidin-2(3H)-one: molecular chains built from alternating $R_{2}^{2}$ (18) and $R_{2}^{2}$ (8) rings

G. Usha, S. Selvanayagam, D. Velmurugan, K. Ravikumar and M. Poornachandran

Abstract: In the title cycloadduct, C₂₀H₁₉N₃O₃, the molecules form centrosymmetric dimers linked by N-HO hydrogen bonds, forming an R₂²(8) ring. The overall conformation of the pyrrolizidine nucleus is folded about the bridging bond.

Online 21 September 2005

Hydrogen bonding in 1'-nitro-2'-phenyl-2',3',4',5',6',7'-hexahydro-1H-indole-3-spiro-3'-1'H-pyrrolizidin-2(3H)-one: molecular chains built from alternating (18) and (8) rings

G. Usha, S. Selvanayagam, D. Velmurugan, K. Ravikumar and M. Poornachandran

Hydrogen bonding in 1'-nitro-2'-phenyl-2',3',4',5',6',7'-hexahydro-1H-indole-3-spiro-3'-1'H-pyrrolizidin-2(3H)-one: molecular chains built from alternating $R_{2}^{2}$ (18) and $R_{2}^{2}$ (8) rings