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Updated: Oct 14, 2025
06:44
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
69.2K
Macrocyclic complexes based on [N⋯I⋯N]+ halogen bonds
Shilin Yu1, Elina Kalenius1, Antonio Frontera2
1University of Jyvaskyla, Department of Chemistry, 40014, Jyväskylä, Finland. kari.t.rissanen@jyu.fi.
Chemical Communications (Cambridge, England)
|November 4, 2021
Summary
New macrocyclic iodine complexes with rigid cavities selectively bind anions in the gas phase. Their cavity size and electrostatic forces dictate anion binding, offering insights into molecular recognition. (36 words)
Area of Science:
- Supramolecular Chemistry
- Inorganic Chemistry
- Host-Guest Chemistry
Background:
- Macrocyclic complexes are crucial in host-guest chemistry for molecular recognition.
- Understanding anion binding in the gas phase is key to designing selective receptors.
Purpose of the Study:
- To synthesize novel macrocyclic iodine(I) complexes.
- To investigate the gas-phase binding of anions by these complexes.
- To elucidate the factors governing anion selectivity and binding strength.
Main Methods:
- Preparation of macrocyclic iodine(I) complexes via ligand exchange reactions.
- Gas-phase binding studies to probe host-guest interactions.
- Analysis of cavity size and electrostatic interactions.
Main Results:
- Successfully synthesized 1-2 nm macrocyclic iodine(I) complexes.
- These complexes exhibit rigid cavities (0.5-1 nm) capable of binding the hexafluorophosphate anion.
- Anion binding is influenced by cavity dimensions and electrostatic interactions with iodine(I) cations.
Conclusions:
- The synthesized macrocyclic complexes demonstrate efficient gas-phase anion binding.
- Cavity size and electrostatic interactions are critical determinants of binding affinity and selectivity.
- These findings provide a foundation for developing novel anion recognition systems.
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