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2-Acetylbenzoic acid: phthalide form

A J Dobson1, R E Gerkin

  • 1Department of Chemistry, Ohio State University, Columbus 43210, USA.

Acta Crystallographica. Section C, Crystal Structure Communications
|December 15, 1996
PubMed
Summary
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This study reveals that 2-acetylbenzoic acid molecules form unique puckered ribbons through single hydrogen bonds. These ribbons run along a specific direction and are not interconnected, influencing crystal structure.

Area of Science:

  • Crystallography
  • Molecular Chemistry
  • Organic Chemistry

Background:

  • Understanding intermolecular forces is crucial for predicting crystal structures.
  • 2-acetylbenzoic acid is an organic compound with potential applications in materials science.

Purpose of the Study:

  • To elucidate the hydrogen bonding patterns and crystal packing of 2-acetylbenzoic acid.
  • To characterize the structural features of the phthalide form of 2-acetylbenzoic acid.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
  • Analysis of hydrogen bond donors and acceptors was performed.

Main Results:

  • The phthalide form of 2-acetylbenzoic acid (C9H8O3) exhibits a single type of hydrogen bond.

Related Experiment Videos

  • Each molecule acts as both a hydrogen bond donor and acceptor.
  • Hydrogen-bonded molecules assemble into non-crosslinked, puckered ribbons along the c-axis.
  • The dihedral angle between adjacent molecules in a ribbon is 77.4(1) degrees.

    • Conclusions:

    • The observed hydrogen bonding network dictates the specific crystal packing of 2-acetylbenzoic acid.
    • The ribbon-like structures influence the material properties and potential applications.