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Related Experiment Videos

Anion-pi interactions.

Brandi L Schottel1, Helen T Chifotides, Kim R Dunbar

  • 1Department of Chemistry, Texas A&M University, PO Box 30012, College Station, TX 77842-3012, USA.

Chemical Society Reviews
|January 17, 2008
PubMed
Summary
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Anion-pi interactions, forces between anions and electron-deficient aromatics, are energetically favorable. These non-covalent forces play key roles in chemistry and biology, driving advances in supramolecular chemistry.

Area of Science:

  • Supramolecular Chemistry
  • Chemical Physics
  • Biophysical Chemistry

Background:

  • Non-covalent interactions are fundamental to molecular recognition.
  • Anion-pi interactions, involving electron-deficient aromatic systems and anions, were theoretically predicted.
  • These interactions were initially less recognized compared to other non-covalent forces.

Purpose of the Study:

  • To provide a tutorial review on the theoretical and experimental evidence for anion-pi interactions.
  • To highlight the energetic favorability and significance of these forces.
  • To discuss the implications for designing anion receptors and channels.

Main Methods:

  • Review of pioneering theoretical investigations.
  • Analysis of experimental studies confirming anion-pi interactions.

Related Experiment Videos

  • Examination of advancements in supramolecular chemistry related to anion binding.

    • Main Results:

    • Anion-pi interactions are energetically favorable, with strengths around 20-50 kJ mol(-1).
    • These interactions are increasingly recognized for their importance in chemical and biological processes.
    • Significant progress has been made in designing selective anion receptors and channels.

    Conclusions:

    • Anion-pi interactions are a crucial class of non-covalent forces.
    • Their understanding is vital for fields ranging from drug design to materials science.
    • Continued research promises further breakthroughs in supramolecular chemistry and beyond.