Crystal structure of 1,7,8,9-tetrachloro-4-(3,5-dichlorobenzyl)-10,10-dimethoxy-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione

Abstract

In the title compound, C17H11Cl6NO4, the configuration of the cycloalkene skeleton is endo,cis. The benzene ring is twisted by 58.94 (8)° from the attached pyrrolidine ring. Two carbonyl groups play a key role in the crystal packing. A short intermolecular C...O distance of 3.017 (3) Å reveals that one carbonyl group is involved in dipole–dipole interactions, which link two adjacent enantiomers into an inversion dimer. Another carbonyl group provides an acceptor for the weak intermolecular C—H...O hydrogen bonds which link these dimers into layers parallel to (011).

Keywords

• crystal structure
• tricyclo[5.2.1.02,6]dec-8-ene-3,5-dione
• biological activity
• cycloalkene skeleton
• dipole–dipole interactions
• hydrogen bonding