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Biocompatible β-cyclodextrin-based metal-organic frameworks.

Kirstin Wilson1, David B Cordes1, Aidan P McKay1

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|December 17, 2025
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Summary
This summary is machine-generated.

Researchers developed novel metal-organic frameworks (MOFs) using beta-cyclodextrin (β-CD) as a building block. This work advances the understanding of β-CD coordination chemistry with sodium and potassium cations.

Keywords:
biocompatible MOFscrystal growthcyclodextrinmetal-organic frameworkssingle crystal X-ray diffraction

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Area of Science:

  • Supramolecular Chemistry
  • Materials Science
  • Coordination Chemistry

Background:

  • Beta-cyclodextrin (β-CD) is a cyclic heptasaccharide with a unique cone shape, making it suitable for constructing porous crystalline solids like metal-organic frameworks (MOFs).
  • Coordination chemistry of β-CD with alkali and alkaline earth metal cations is less understood compared to its analogues (α-CD and γ-CD) due to symmetry constraints.

Purpose of the Study:

  • To optimize synthetic conditions for creating MOF structures using β-CD as an organic linker.
  • To investigate the coordination chemistry of β-CD with Na+ and K+ cations.
  • To perform detailed solid-state characterization of the resulting MOFs.

Main Methods:

  • Optimization of synthetic conditions for MOF synthesis.
  • Single-crystal X-ray diffraction for structural determination.
  • Solid-state characterization techniques (e.g., spectroscopy, thermal analysis).

Main Results:

  • Successful synthesis of two MOF structures utilizing β-CD with Na+ and K+ cations.
  • Detailed structural analysis revealing the binding tendencies of β-CD.
  • Comprehensive solid-state characterization data for both synthesized MOFs.

Conclusions:

  • The study provides new insights into the coordination chemistry of β-CD with specific alkali metal cations.
  • The synthesized MOF structures demonstrate the potential of β-CD as a biocompatible building block for reticular materials.
  • This work facilitates the development of novel porous crystalline solids with potential applications.