A Hexagonal-Bipyramidal Dinuclear Dysprosium Single-Molecule Magnet Based on a Boron-Bridged Bicyclic Crown Ether Ligand
Abstract
Taking advantage of a new boron-bridged bicyclic crown ether ([EO5-B-EO5] − ) as the hexagonal planar ligand, a novel dinuclear Dy(III) complex, namely [Dy 2 (EO5-B-EO5)(2,6-dichloro-4-nitro-PhO) 4 ](BPh 4 ) ( 1 ), was successfully isolated. Each Dy(III) center adopts a hexagonal bipyramidal coordination geometry, while the intramolecular Dy1···Dy2 distance is 6.2083(3) Å in the Dy 2 dimer. This complex shows typical slow magnetic relaxation behavior. Ab initio calculations revealed that the highly anisotropic ground states originate from the pseudolinear O–Dy–O ligand field, while the Ising axes of the two Dy ions are nearly perpendicular to each other, leading to weak antiferromagnetic interaction between the two Dy ions.
Fields of Study & Subjects
Magnetism in coordination complexes
Metal-Organic Frameworks: Synthesis and Applications
Metal-Catalyzed Oxygenation Mechanisms
Publication details
- Journal / source
- Crystal Growth & Design
- Publisher
- American Chemical Society (ACS)
- Volume
- 26
- Issue
- 7
- Pages
- 2861–2867
- Publication date
- 18 March 2026
- Language
- EN