Macrocyclic ligand encapsulating dysprosium triangles: axial ligands perturbed magnetic dynamics.

  title={Macrocyclic ligand encapsulating dysprosium triangles: axial ligands perturbed magnetic dynamics.},
  author={Shuang-Yan Lin and Yun-Nan Guo and Yang Guo and Lang Zhao and Peng Zhang and Hongshan Ke and Jinkui Tang},
  journal={Chemical communications},
  volume={48 55},
Two Dy(3) triangles encapsulated inside the cavity of a macrocycle ligand have been successfully synthesized, providing a unique opportunity to probe the relaxation dynamics of the complexes by altering the axial ligands. 
Planar Dy3 + Dy3 clusters: design, structure and axial ligand perturbed magnetic dynamics.
Two unique Dy6 complexes with fascinating Dy3 + Dy3 structures were assembled, showing single-molecule magnetic behavior with high energy barriers of 116 and 181 K for Dy6-NO3 and Dy6-SCN.
A triangular dysprosium with asymmetric central caps featuring ferromagnetic coupling and single-molecule magnet behaviour.
A new Dy3 triangle bridged by a deprotonated alkoxyl group of a Schiff-base ligand together with a μ3-OH group has been prepared, in which intramolecular ferromagnetic interactions and single
The influence of organic bases and substituted groups on coordination structures affording two mononuclear Dy(iii) single-molecule magnets (SMMs) and a novel Dy(iii)–K(i) compound with unusually coordinated fluorine atoms
The different organic bases and substituted groups of auxiliary ligands play an important role in synthetic processes, finally affording distinct structures and magnetic properties.
Correction: Lanthanide complexes based on a conjugated pyridine carboxylate ligand: structures, luminescence and magnetic properties
Correction for ‘Lanthanide complexes based on a conjugated pyridine carboxylate ligand: structures, luminescence and magnetic properties’ by Rong-fang Li et al., RSC Adv., 2020, 10, 6192–6199.
Magnetic dynamics of an open-ring tridysprosium complex employing mixed ligands.
Magnetic measurements reveal that 1 exhibits typical single-molecule magnetic behavior at zero magnetic field and shows rarely open hysteresis loops up to 3 K among open- ring {Dy3} SMMs, where the relaxation time remains very stable under the protection from the Dy-Dy magnetic coupling in the open-ring arrangement of Ising spins.
A planar triangular Dy3 + Dy3 single-molecule magnet with a toroidal magnetic moment.
A unique Dy6 complex with a planar Dy3 + Dy3 structure was assembled by delicately modifying the axial ligands. Single-molecule magnet behavior and meanwhile a toroidal magnetic moment in the ground
Modulating Relaxation Dynamics of Dy2 Compounds through Carboxylate Coordination Modes
The reaction of the rigid polydentate Schiff-base H3L with different dysprosium carboxylates afforded two novel centrosymmetrical dinuclear DyIII compounds, [Dy2(HL)2(CH3COO)2(DMF)2] (1) and
Unique Y-shaped lanthanide aggregates and single-molecule magnet behaviour for the Dy4 analogue.
Analysis of the susceptibility data shows that only the Dy-based molecule features SMM-like behaviour, and the synthetic methodology of employing H2L and related ligands has provided a very promising route towards new families of magnetic coordination clusters with novel metal topologies and properties.


Pyrazine-bridged Dy2 single-molecule magnet with a large anisotropic barrier.
Utilization of the strong electron-withdrawing ligand, hfac, leads to a novel dinuclear dysprosium single-molecule magnet featuring a pyrazine bridge with a large anisotropic barrier.
Opening up a dysprosium triangle by ligand oximation.
A simple trinuclear dysprosium complex shows complex slow relaxation of the magnetisation.
Linking high anisotropy Dy3 triangles to create a Dy6 single-molecule magnet.
A unique Dy(III)(6) complex is created by linking of two Dy(III)(3) triangles, in which intramolecular ferromagnetic interactions and single-molecule magnetic behaviour have been observed.
An organometallic sandwich lanthanide single-ion magnet with an unusual multiple relaxation mechanism.
A dysprosium(III) sandwich complex, [Dy(III)(COT″)(2)Li(THF)(DME)], was synthesized using 1,4-bis(trimethylsilyl)cyclooctatetraenyl dianion (COT) and demonstrates unusual multiple relaxation modes.
Coordination-perturbed single-molecule magnet behaviour of mononuclear dysprosium complexes.
The results proved the important influence of the structural environment of a SMM on its magnetic behaviour.
Two-step relaxation in a linear tetranuclear dysprosium(III) aggregate showing single-molecule magnet behavior.
This compound represents a model molecular aggregate with a clear two-step relaxation evidenced by frequency-dependent susceptibility, which therefore may stimulate further investigations regarding the relaxation dynamics of lanthanide-based systems.
A tetranuclear 3d-4f single molecule magnet: [CuIILTbIII(hfac)2]2.
The present study demonstrates that the synthesis of the d-f polynuclear molecule is a very promising approach to SMMs.
Capping ligand perturbed slow magnetic relaxation in dysprosium single-ion magnets.
The similar values of U(eff) for the two magnetically diluted samples imply nearly the same distribution of low-lying states for their Dy(III) centers, which is consistent with the slight axial contraction observed for 1 and 2 and further corroborated by ligand-field analysis.
Giant field dependence of the low temperature relaxation of the magnetization in a dysprosium(III)-DOTA complex.
Two competing mechanisms for magnetic relaxation as well as the remarkable increase of six orders of magnitude in the relaxation time upon application of a static magnetic field were detected.