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Computational study of the halogen atom-benzene complexes.

Meng-Lin Tsao1, Christopher M Hadad, Matthew S Platz

  • 1Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA.

Journal of the American Chemical Society
|July 3, 2003
PubMed
Summary
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Computational methods reveal halogen atom-benzene complexes. Fluorine forms a sigma complex, while chlorine, bromine, and iodine prefer eta(1) pi structures, offering insights into chemical bonding.

Area of Science:

  • Chemical Physics
  • Computational Chemistry

Background:

  • Understanding non-covalent interactions between atoms and aromatic systems is crucial in chemistry.
  • Halogen bonding and pi-system interactions are fundamental to molecular recognition and reaction mechanisms.

Purpose of the Study:

  • To investigate the structural preferences of halogen atom-benzene complexes.
  • To predict spectroscopic properties and compare with experimental data.

Main Methods:

  • Density Functional Theory (DFT) calculations.
  • Ab initio computational methods.
  • Zero-Point Energy (ZPE) corrections were applied.

Main Results:

  • The fluorine atom-benzene complex is predicted to adopt a sigma complex structure due to a strong C-F bond.

Related Experiment Videos

  • Chlorine, bromine, and iodine atom-benzene complexes are predicted to favor an eta(1) pi complex structure.
  • Computational predictions show good agreement with available experimental spectroscopic data.

    • Conclusions:

    • The study elucidates the distinct binding modes of different halogen atoms with benzene.
    • Computational chemistry provides accurate predictions for the structures and properties of these complexes.
    • Findings contribute to understanding halogen interactions in chemical systems.