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Updated: Apr 23, 2026

Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
(2E)-2-Benzyl-idene-9-phenyl-3,4-di-hydro-acridin-1(2H)-one
T Vinuchakkaravarthy1, M Sankaran2, P S Mohan2
1Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Maraimalai (Guindy) Campus, Chennai 600 025, India.
This study details the crystal structure of a novel organic compound, C26H19NO. Molecular analysis reveals specific dihedral angles and intermolecular interactions like C-H⋯O and C-H⋯π bonds, forming dimers and chains.
Area of Science:
- Crystallography
- Organic Chemistry
- Supramolecular Chemistry
Background:
- Understanding the three-dimensional arrangement of atoms in organic molecules is crucial for predicting their properties.
- Intermolecular forces significantly influence the packing and behavior of molecules in the solid state.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C26H19NO.
- To investigate the intermolecular interactions governing the solid-state organization of this molecule.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of intermolecular contacts, including hydrogen bonds and other non-covalent interactions, was performed.
Main Results:
- The crystal structure of C26H19NO was determined, revealing a dihedral angle of 75.22(4)° between the aromatic heterocycle and the phenyl ring.
- C-H⋯O interactions were identified, leading to the formation of R2(2)(12) dimeric units.
- Further C-H⋯π interactions were observed, connecting these dimers into one-dimensional chains along the a-axis.
Conclusions:
- The study provides a detailed structural characterization of C26H19NO.
- The identified intermolecular interactions dictate the supramolecular assembly in the crystal lattice.
- This structural information is fundamental for understanding the compound's physical and chemical properties.
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