Macrocyclic ligand encapsulating dysprosium triangles: axial ligands perturbed magnetic dynamics.
@article{Lin2012MacrocyclicLE, 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}, year={2012}, volume={48 55}, pages={ 6924-6 } }
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.
Figures from this paper
66 Citations
Planar Dy3 + Dy3 clusters: design, structure and axial ligand perturbed magnetic dynamics.
- ChemistryDalton transactions
- 2015
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.
- Physics, ChemistryDalton transactions
- 2013
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
- Chemistry
- 2021
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
- ChemistryRSC advances
- 2020
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.
- ChemistryDalton transactions
- 2020
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.
- PhysicsChemical communications
- 2016
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
- Materials Science
- 2015
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.
- ChemistryDalton transactions
- 2014
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.
References
SHOWING 1-10 OF 35 REFERENCES
Pyrazine-bridged Dy2 single-molecule magnet with a large anisotropic barrier.
- Physics, ChemistryChemical communications
- 2010
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.
- PhysicsChemical communications
- 2009
A simple trinuclear dysprosium complex shows complex slow relaxation of the magnetisation.
Linking high anisotropy Dy3 triangles to create a Dy6 single-molecule magnet.
- Physics, ChemistryChemical communications
- 2009
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.
- Physics, ChemistryJournal of the American Chemical Society
- 2011
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.
- PhysicsDalton transactions
- 2011
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.
- PhysicsJournal of the American Chemical Society
- 2010
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.
- Physics, ChemistryJournal of the American Chemical Society
- 2004
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.
- PhysicsChemistry
- 2011
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.
- Materials ScienceChemical communications
- 2011
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.