1,2,3-Trimethoxy-5,11-dihydroindolo[1,2-b]isoquinoline-5,11-dione
M Yogavel1, D Velmurugan, W G Rajeswaran
1Department of Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
Acta Crystallographica. Section C, Crystal Structure Communications
|December 7, 2005
Summary
This study details the crystal structure of a C15H19NO5 compound, revealing variations in methoxy group orientations and specific pi-stacking arrangements. The supramolecular assembly is stabilized by hydrogen bonding and pi-pi interactions.
Area of Science:
- Crystallography
- Molecular structure analysis
- Supramolecular chemistry
Background:
- Understanding molecular arrangements is crucial in materials science.
- Crystal structure analysis provides insights into intermolecular forces.
- Methoxy group conformation influences molecular packing.
Purpose of the Study:
- To elucidate the crystal structure of the title compound (C15H19NO5).
- To analyze the conformational variations of methoxy groups within the crystal lattice.
- To investigate the supramolecular architecture and stabilizing interactions.
Main Methods:
- Single-crystal X-ray diffraction.
- Analysis of molecular conformation and orientation.
- Identification of intermolecular interactions (C-H...O, pi-pi).
Main Results:
- The compound crystallizes in the monoclinic space group P2(1)/c.
- Four molecules in the asymmetric unit exhibit distinct methoxy group orientations.
- Two types of stacking sheets and four types of pi-stacks were observed.
- Supramolecular structure is stabilized by C-H...O and pi-pi interactions.
Conclusions:
- The crystal packing is dictated by specific methoxy group conformations.
- Pi-stacking and hydrogen bonding play key roles in stabilizing the supramolecular structure.
- Detailed structural insights are provided for this organic compound.
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