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1-Octylindoline-2,3-dione.

Fatima-Zahrae Qachchachi1, Youssef Kandri Rodi1, El Mokhtar Essassi2

  • 1Laboratoire de Chimie Organique Appliquée, Université Sidi Mohamed Ben Abdallah, Faculté des Sciences et Techniques, Route d'Immouzzer, BP 2202 Fès, Morocco.

Acta Crystallographica. Section E, Structure Reports Online
|January 24, 2014
PubMed
Summary
This summary is machine-generated.

This study analyzes the crystal structure of C16H21NO2, revealing a nearly planar indoline ring and ketone groups. Molecules form a 3D network via hydrogen bonds in the crystal lattice.

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Area of Science:

  • Crystallography
  • Organic Chemistry
  • Molecular Structure

Background:

  • Understanding the three-dimensional arrangement of atoms in organic molecules is crucial for predicting their properties and reactivity.
  • The specific compound C16H21NO2 presents an interesting case for structural analysis due to its fused ring system and alkyl chain.

Purpose of the Study:

  • To elucidate the crystal structure of the organic compound C16H21NO2.
  • To determine the spatial arrangement of the indoline ring, ketone groups, and the 1-octyl chain.
  • To investigate the intermolecular interactions, specifically hydrogen bonding, within the crystal.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
  • Analysis of atomic coordinates and bond lengths/angles provided information on molecular geometry.
  • Intermolecular interactions were identified through hydrogen bond analysis.

Main Results:

  • The indoline ring and the two ketone oxygen atoms were found to be approximately coplanar, with minimal deviation (0.063(2) Å).
  • A significant dihedral angle of 77.53(17)° was observed between the fused ring system and the 1-octyl chain, indicating near-perpendicular orientation.
  • The crystal structure revealed a three-dimensional network formed by C-H⋯O hydrogen bonds between molecules.

Conclusions:

  • The crystal structure of C16H21NO2 is characterized by a specific spatial arrangement of its functional groups and alkyl chain.
  • The identified hydrogen bonding network plays a key role in stabilizing the crystal lattice.
  • This detailed structural information provides a foundation for further studies on the compound's physical and chemical properties.