scholarly journals Implementation of Slow Magnetic Relaxation in a SIM-MOF Through a Structural Rearrangement

2018 ◽  
Author(s):  
Guillermo Minguez Espallargas ◽  
Javier Castells-Gil ◽  
Carlos Marti-Gastaldo ◽  
Jose J. Baldovi
Keyword(s):  
Magnetic Properties ◽  
Charge Density ◽  
Magnetic Relaxation ◽  
Structural Rearrangement ◽  
Ligand Substitution ◽  
Structural Flexibility ◽  
Coordination Environment ◽  
Substitution Process ◽  
Slow Magnetic Relaxation

<p>Here we report the structural flexibility of a Dy-based Single-Ion Magnet MOF in which its magnetic properties can be modified through a ligand substitution process involving an increase of the charge density of the coordination environment.</p>

scholarly journals Implementation of Slow Magnetic Relaxation in a SIM-MOF Through a Structural Rearrangement

2018 ◽  
Author(s):  
Guillermo Minguez Espallargas ◽  
Javier Castells-Gil ◽  
Carlos Marti-Gastaldo ◽  
Jose J. Baldovi
Keyword(s):  
Magnetic Properties ◽  
Charge Density ◽  
Magnetic Relaxation ◽  
Structural Rearrangement ◽  
Ligand Substitution ◽  
Structural Flexibility ◽  
Coordination Environment ◽  
Substitution Process ◽  
Slow Magnetic Relaxation

<p>Here we report the structural flexibility of a Dy-based Single-Ion Magnet MOF in which its magnetic properties can be modified through a ligand substitution process involving an increase of the charge density of the coordination environment.</p>

scholarly journals Implementation of slow magnetic relaxation in a SIM-MOF through a structural rearrangement

2018 ◽  
Vol 47 (41) ◽  
pp. 14734-14740 ◽  
Author(s):  
Javier Castells-Gil ◽  
José J. Baldoví ◽  
Carlos Martí-Gastaldo ◽  
Guillermo Mínguez Espallargas
Keyword(s):  
Charge Density ◽  
Magnetic Relaxation ◽  
Structural Rearrangement ◽  
Coordination Environment ◽  
Slow Magnetic Relaxation

Dehydration of a Dy-based MOF causes the appearance of slow-magnetic relaxation due to the changes of the charge density of the coordination environment.

Tetranuclear rare-earth complexes: energy barrier enhancement and two-step slow magnetic relaxation activated by ligand substitution

2019 ◽  
Vol 6 (3) ◽  
pp. 756-764 ◽  
Author(s):  
Jian Gou ◽  
Shuang Liu ◽  
Yun-Juan Wang ◽  
Ling Li ◽  
Peng Ren ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Energy Barrier ◽  
Magnetic Relaxation ◽  
Ligand Substitution ◽  
Rare Earth Complexes ◽  
Slow Magnetic Relaxation

The influence of tuning the β-diketone on the modulation of the magnetic properties is demonstrated.

Structures, fluorescence properties and magnetic properties of a series of rhombus-shaped LnIII4 clusters: magnetocaloric effect and single-molecule-magnet behavior

2019 ◽  
Vol 43 (33) ◽  
pp. 12941-12949 ◽  
Author(s):  
Wen-Min Wang ◽  
Li Zhang ◽  
Xian-Zhen Li ◽  
Li-Yuan He ◽  
Xin-Xin Wang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetocaloric Effect ◽  
Single Molecule ◽  
Magnetic Relaxation ◽  
Magnetic Refrigeration ◽  
Fluorescence Properties ◽  
Relaxation Processes ◽  
Magnetic Studies ◽  
Single Molecule Magnet ◽  
Slow Magnetic Relaxation

A family LnIII4 clusters were successfully synthesized and structurally characterized. Magnetic studies show that Gd4 cluster displays magnetic refrigeration, while Dy4 cluster demonstrates two distinct slow magnetic relaxation processes.

scholarly journals Nitronyl Nitroxide Biradical-Based Binuclear Lanthanide Complexes: Structure and Magnetic Properties

2020 ◽  
Vol 6 (4) ◽  
pp. 48
Author(s):  
Lu Xi ◽  
Jing Han ◽  
Xiaohui Huang ◽  
Licun Li
Keyword(s):  
Magnetic Properties ◽  
Magnetic Relaxation ◽  
Lanthanide Complexes ◽  
Magnetic Data ◽  
Antiferromagnetic Coupling ◽  
Zero Field ◽  
Nitronyl Nitroxide ◽  
Ferromagnetic Exchange ◽  
Binuclear Structure ◽  
Slow Magnetic Relaxation

Employing a new nitronyl nitroxide biradical NITPhPzbis(NITPhPzbis = 5-(1-pyrazolyl)-1,3-bis(1’-oxyl-3’-oxido-4’,4’,5’,5’-tetramethyl-4,5-hydro-1H-imidazol-2-yl)benzene), a series of 2p-4f complexes [Ln2(hfac)6(H2O)(NITPhPzbis)] (LnIII = Gd1, Tb2, Dy3; hfac = hexafluoroacetylacetonate) were successfully synthesized. In complexes 1–3, the designed biradical NITPhPzbis coordinates with two LnIII ions in chelating and bridging modes to form a four-spin binuclear structure. Direct-current magnetic study of Gd analogue indicates that ferromagnetic exchange exists between the Gd ion and the radical while antiferromagnetic coupling dominates between two mono-radicals. Dynamic magnetic data show that the χ” signals of complex 3 exhibit frequency dependence under zero field, demonstrating slow magnetic relaxation behavior in complex 3. And the estimated values of Ueff and τ0 are about 8.4 K and 9.1 × 10−8 s, respectively.

Syntheses and magnetic properties of a bis-tridentate nitronyl nitroxide radical and its metal complexes

2019 ◽  
Vol 48 (15) ◽  
pp. 4774-4778 ◽  
Author(s):  
Hao Miao ◽  
Miao Li ◽  
Hong-Qing Li ◽  
Fu-Xing Shen ◽  
Yi-Quan Zhang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Metal Complexes ◽  
Magnetic Relaxation ◽  
Nitroxide Radical ◽  
Nitronyl Nitroxide ◽  
Nitronyl Nitroxide Radical ◽  
Slow Magnetic Relaxation

A new bis-tridentate nitronyl nitroxide radical was synthesized and characterized. Field-induced slow magnetic relaxation was observed in the radical-bridged CoII complex.

3D isomorphous lanthanide coordination polymers displaying magnetic refrigeration, slow magnetic relaxation and tunable proton conduction

2018 ◽  
Vol 47 (43) ◽  
pp. 15405-15415 ◽  
Author(s):  
Siba Prasad Bera ◽  
Arpan Mondal ◽  
Subhadip Roy ◽  
Bijoy Dey ◽  
Atanu Santra ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Coordination Polymers ◽  
Magnetic Relaxation ◽  
Magnetic Refrigeration ◽  
Proton Conduction ◽  
Lanthanide Coordination Polymers ◽  
Slow Magnetic Relaxation ◽  
Coordination Frameworks

Four lanthanide 3D coordination frameworks with 1D hydrophilic channels along the crystallographic c direction have been investigated for their proton conduction and magnetic properties.

scholarly journals Neodymium β-diketonate showing slow magnetic relaxation and acting as a ratiometric thermometer based on near-infrared emission

RSC Advances ◽  
2019 ◽  
Vol 9 (41) ◽  
pp. 23444-23449 ◽  
Author(s):  
Kunal Kumar ◽  
Daisuke Abe ◽  
Keiko Komori-Orisaku ◽  
Olaf Stefańczyk ◽  
Koji Nakabayashi ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Molecule ◽  
Magnetic Relaxation ◽  
Near Infrared ◽  
Infrared Emission ◽  
Thermally Induced ◽  
Slow Magnetic Relaxation ◽  
Near Infrared Emission

In this work, we investigated thermally-induced Nd-based one centred ratiometric thermometer which also exhibit single molecule magnetic properties.

A substituent effect of phenylacetic acid coligand perturbed structures and magnetic properties observed in two triple-bridged azido-Cu(ii) chain compounds with ferromagnetic ordering and slow magnetic relaxation

2017 ◽  
Vol 46 (23) ◽  
pp. 7556-7566 ◽  
Author(s):  
Xiangyu Liu ◽  
Xiaohui Ma ◽  
Peipei Cen ◽  
Yuewei Wu ◽  
Chengcheng Zhang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Substituent Effect ◽  
Magnetic Relaxation ◽  
Phenylacetic Acid ◽  
Slow Magnetic Relaxation ◽  
Chain Compounds ◽  
Ferromagnetic Ordering

Two triple-bridged azido-Cu(ii) chains exhibit distinct magnetic behaviors.

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