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(E)-1,1'-Dibutyl-3,3'-biindolinyl-idene-2,2'-dione
Acta Crystallographica. Section E, Structure Reports Online
|April 28, 2011
Summary
This study details the crystal structure of a molecule containing two indol-2-one units. Structural analysis reveals near-planar geometry and a phase transition upon cooling, indicating interesting molecular dynamics.
Area of Science:
- Crystallography
- Organic Chemistry
- Solid-state Chemistry
Background:
- Indol-2-one derivatives are important scaffolds in medicinal chemistry.
- Understanding the solid-state properties of organic molecules is crucial for material science applications.
Purpose of the Study:
- To characterize the crystal structure and intermolecular interactions of a novel C(24)H(26)N(2)O(2) molecule.
- To investigate the temperature-dependent structural changes and phase transitions.
Main Methods:
- Single-crystal X-ray diffraction at variable temperatures.
- Analysis of crystallographic data to determine molecular geometry and space group.
- Identification of intra-molecular hydrogen bonding.
Main Results:
- The molecule C(24)H(26)N(2)O(2) exhibits a near-planar conformation with an inter-planar angle of 6.8° between the two indol-2-one units.
- A reversible phase transition was observed upon cooling from 293 K to 120 K, with the space group changing from P2(1)/n to P2(1).
- Two intra-molecular C-H⋯O hydrogen bonds were identified, contributing to the molecular stability.
Conclusions:
- The study provides detailed structural insights into a C(24)H(26)N(2)O(2) molecule, highlighting its conformational preferences.
- The observed phase transition suggests potential for stimuli-responsive material applications.
- Intra-molecular hydrogen bonding plays a significant role in the observed crystal packing and stability.
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