Synthesis and structure of ( Z )-2-(ethoxymethylidene)-8-methyl-2,3,4,9-tetrahydro-1 H -carbazol-1-one
Abstract
, the cyclo-hexene ring adopts an envelope conformation and the side chain is extended. In the extended structure, N-H⋯O hydrogen bonds connect the mol-ecules into [100] chains and weak C-H⋯O inter-actions and pairwise C-H⋯π inter-actions consolidate the packing. A Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from H⋯H (57.6%), C⋯H/H⋯C (24.2%), and H⋯O/ O⋯H (13.8%) contacts. Evaluation of the electrostatic, dispersion and total energy frameworks indicates that the cohesion of the crystal largely depends on dispersion energy contributions.
Fields of Study & Subjects
Crystal structures of chemical compounds
Crystallography and molecular interactions
Axial and Atropisomeric Chirality Synthesis
Publication details
- Journal / source
- Acta Crystallographica Section E Crystallographic Communications
- Publisher
- International Union of Crystallography (IUCr)
- Volume
- 82
- Issue
- 6
- Pages
- 670–673
- Publication date
- 14 May 2026
- Language
- EN