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Isoreticular moiré metal-organic frameworks with quasiperiodicity
Jiyeon Kim1, Jaewoong Lee2, Changhyeon Cho1
1Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea.
Nature Communications
|August 13, 2025
Summary
Researchers created quasiperiodic patterns in metal-organic frameworks (MOFs) by twisting layers. Ligand design allowed control over pattern length scales, offering new possibilities for functional moiré materials.
Area of Science:
- Materials Science
- Crystallography
- Chemistry
Background:
- Quasicrystals exhibit unique, non-repeating atomic structures with forbidden rotational symmetries.
- Controlling quasiperiodic length scales in materials is challenging due to atomic and chemical constraints.
Purpose of the Study:
- To utilize metal-organic frameworks (MOFs) as a platform for generating quasiperiodic moiré patterns.
- To demonstrate systematic control over the characteristic length scales of these patterns through rational design.
Main Methods:
- Employing twisted bilayer structures within MOFs to create moiré patterns.
- Utilizing rational ligand design based on isoreticular principles for structural modulation.
- Characterizing patterns using high-resolution transmission electron microscopy (HR-TEM) and mathematical analysis.
Main Results:
- Successfully generated moiré patterns with dodecagonal quasiperiodic symmetry in MOFs.
- Demonstrated systematic modulation of pattern length scales via ligand modification.
- Observed patterns resemble quasicrystals but arise from layer stacking, not intrinsic order.
Conclusions:
- Reticular chemistry can incorporate quasiperiodicity into material design.
- This approach expands the structural design space for functional moiré materials.
- The study provides a conceptual framework for creating complex ordered structures.
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