Related Experiment Video
Updated: Apr 23, 2026
Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
Published on: August 2, 2012
Enantioselective self-assembly of triangular Dy3 clusters with single-molecule magnet behavior
Shuang-Yan Lin1, Chao Wang, Lang Zhao
1State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China), Fax: (+86) 431-85262878; University of Chinese Academy of Sciences, Beijing, 100039 (P. R. China).
Researchers synthesized chiral triangular lanthanide (Ln3) clusters with enantiopure ligands. These clusters exhibit single-molecule magnet behavior and optical activity, paving the way for novel multifunctional materials.
Area of Science:
- Coordination Chemistry
- Supramolecular Chemistry
- Materials Science
Background:
- Chiral lanthanide clusters are of interest for their unique magnetic and optical properties.
- Developing enantiopure lanthanide clusters is challenging but crucial for advanced applications.
Purpose of the Study:
- To synthesize enantiopure chiral triangular lanthanide (Ln3) clusters.
- To investigate the transfer of chirality from ligands to Ln3 clusters.
- To explore the magnetic and optical properties of these novel clusters.
Main Methods:
- Rational enantioselective synthesis strategy.
- Characterization using circular dichroism (CD) and vibrational circular dichroism (VCD) spectroscopy.
- Ac susceptibility measurements for magnetic properties.
Main Results:
- Successfully synthesized three pairs of enantiopure chiral triangular Ln3 clusters (Dy3, Ho3, Er3).
- Demonstrated successful chirality transfer from ligands to Ln3 clusters via CD and VCD spectra.
- Observed single-molecule magnet behavior in both enantiopure R-Dy3 and S-Dy3 clusters.
Conclusions:
- This study presents a successful design of triangular Dy3 clusters exhibiting both slow magnetic relaxation and optical activity.
- The developed enantioselective strategy opens new avenues for creating multifunctional materials with tailored magnetic and optical properties.
Related Concept Videos
02:42Valence Bond Theory
03:02Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...