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N-(3,5-Di-chloro-4-hy-droxy-phen-yl)acetamide.

Rao M Uppu1, Frank R Fronczek2

  • 1Department of Environmental Toxicology Southern University and A&M College,Baton Rouge Louisiana 70813 USA.

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|February 9, 2026
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Summary
This summary is machine-generated.

This study details the crystal structure of C8H7Cl2NO2, revealing two planar and one nonplanar molecule. These molecules form a complex 3D network through various hydrogen bonds, impacting crystal packing.

Keywords:
acetamino­phenchlorinated acetamino­phencrystal structure

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Area of Science:

  • Crystallography
  • Chemical Physics
  • Materials Science

Background:

  • Understanding molecular conformation and intermolecular interactions is crucial for predicting material properties.
  • Crystal structure analysis provides fundamental insights into the solid-state behavior of chemical compounds.

Purpose of the Study:

  • To elucidate the crystal structure of the title compound, C8H7Cl2NO2.
  • To investigate the molecular conformations and hydrogen bonding patterns within the crystal lattice.
  • To describe the resulting three-dimensional network formed by intermolecular interactions.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the crystal structure.
  • Analysis of bond lengths, bond angles, and dihedral angles characterized molecular geometry.
  • Intermolecular interactions, specifically hydrogen bonds, were identified and analyzed.

Main Results:

  • The compound crystallizes in the triclinic space group P1, with three molecules in the asymmetric unit.
  • Two molecules are nearly planar, while the third exhibits significant nonplanarity (dihedral angle of 67.56°).
  • A complex three-dimensional network is formed through various intermolecular hydrogen bonds involving O-H, N-H, and carbonyl groups, as well as Cl substituents.

Conclusions:

  • The crystal structure of C8H7Cl2NO2 is characterized by distinct molecular conformations and extensive hydrogen bonding.
  • The interplay of planar and nonplanar molecules, along with bifurcated and intermolecular hydrogen bonds, dictates the formation of a robust 3D network.
  • This detailed structural analysis provides a foundation for understanding the physical and chemical properties of this compound.