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Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies
Published on: January 3, 2018
Lanthanide Phosphonates and Phosphates in Molecular Magnetism
Junaid Ali1, Pawan Kumar1, Vadapalli Chandrasekhar1,2
1Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad, 500046, India.
Lanthanide complexes with phosphonate and phosphate ligands are increasingly studied for their unique magnetic properties, including single-molecule magnet behavior and magnetocaloric effects. This review examines their structures and magnetic characteristics.
Area of Science:
- Coordination Chemistry
- Materials Science
- Magnetism
Background:
- Phosphonate and phosphate ligands are less studied than carboxylates in coordination chemistry.
- Phosphonates can form insoluble aggregates; phosphates are prone to hydrolysis, especially with lanthanides.
- Recent advances enable synthesis and characterization of lanthanide phosphonate/phosphate complexes.
Purpose of the Study:
- To review the synthesis and characterization of lanthanide complexes with phosphonate and phosphate ligands.
- To explore the magnetic properties of these lanthanide complexes.
- To examine crystal structures and magnetic characteristics relevant to single-molecule magnets (SMMs) and magnetocaloric effects (MCE).
Main Methods:
- Crystallographic analysis to determine structural features.
- Magnetic susceptibility measurements to probe magnetic behavior.
- Analysis of structure-property relationships for SMMs and MCE.
Main Results:
- Diverse crystal structures are observed for lanthanide phosphonate and phosphate complexes.
- These complexes exhibit interesting magnetic phenomena, including SMM behavior and MCE.
- Ligand properties significantly influence the resulting complex structures and magnetic outcomes.
Conclusions:
- Lanthanide phosphonate and phosphate complexes offer promising avenues for developing new magnetic materials.
- Further research into their synthesis and magnetic properties is warranted.
- These complexes hold potential for applications in molecular magnetism and magnetic cooling.
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