Synthesis and structure of ( Z )-8-methyl-2-(8-methyl-2,3,4,9-tetrahydrocarbazol-1-ylidene)-2,3,4,9-tetrahydrocarbazol-1-one
Abstract
In the title compound, C 26 H 24 N 2 O, the dihedral angle between the indole fused ring units is 36.37 (5)° and an intramolecular N—H...O hydrogen bond closes an S (7) ring. In the extended structure, inversion dimers linked by pairwise N—H...O hydrogen bonds generate an R 2 2 (10) loop. Secondary C—H...π contacts consolidate the packing and a π–π stacking interaction is also observed. The contributions of the different interactions towards the crystal packing were analysed using Hirshfeld surface and fingerprint plots, showing that the largest contributions come from H...H (59.5%) and C...H/H...C contacts (28.5%).
Fields of Study & Subjects
Crystal structures of chemical compounds
Synthesis and Properties of Aromatic Compounds
Plant chemical constituents analysis
Publication details
- Journal / source
- Acta Crystallographica Section E Crystallographic Communications
- Publisher
- International Union of Crystallography (IUCr)
- Volume
- 82
- Issue
- 5
- Pages
- 450–453
- Publication date
- 7 April 2026
- Language
- EN