scholarly journals Tetranuclear Ni(ii) and Co(ii) Schiff-base complexes with an M4O6 defective dicubane-like core: zero-field SMM behavior in the cobalt analogue

2017 ◽  
Vol 41 (19) ◽  
pp. 11258-11267 ◽  
Author(s):  
Ivan Nemec ◽  
Radovan Herchel ◽  
Marek Machata ◽  
Zdeněk Trávníček
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Single Molecule ◽  
Schiff Base Complexes ◽  
Zero Field ◽  
Single Molecule Magnet

Two tetranuclear Ni4 and Co4 complexes were prepared and characterized. Their magnetic properties were thoroughly studied and it was revealed that the Co4 compound behaves as a zero-field single-molecule magnet.

Linear-shaped LnIII4 and LnIII6 clusters constructed by a polydentate Schiff base ligand and a β-diketone co-ligand: structures, fluorescence properties, magnetic refrigeration and single-molecule magnet behavior

2019 ◽  
Vol 48 (44) ◽  
pp. 16744-16755 ◽  
Author(s):  
Wen-Min Wang ◽  
Li-Yuan He ◽  
Xin-Xin Wang ◽  
Ying Shi ◽  
Zhi-Lei Wu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Single Molecule ◽  
Schiff Base Ligand ◽  
Magnetic Refrigeration ◽  
Fluorescence Properties ◽  
Single Molecule Magnet

A series of linear-shaped LnIII4 and LnIII6 clusters were synthesized. The structures, fluorescence properties and magnetic properties have been deeply studied.

scholarly journals Solvent-induced structural diversity in tetranuclear Ni(ii) Schiff-base complexes: the first Ni4single-molecule magnet with a defective dicubane-like topology

2016 ◽  
Vol 45 (46) ◽  
pp. 18622-18634 ◽  
Author(s):  
Radovan Herchel ◽  
Ivan Nemec ◽  
Marek Machata ◽  
Zdeněk Trávníček
Keyword(s):  
Schiff Base ◽  
Single Molecule ◽  
Structural Diversity ◽  
Schiff Base Complexes ◽  
Single Molecule Magnet

The tetranuclear NiIIcomplexes with the Ni4O4cubane-like core (1) and the Ni4O6defective dicubane core (2) were studied, and the latter identified as a first single-molecule magnet with such topology.

scholarly journals A Dy(III) Fluorescent Single-Molecule Magnet Based on a Rhodamine 6G Ligand

Inorganics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 51
Author(s):  
Lin Miao ◽  
Mei-Jiao Liu ◽  
Man-Man Ding ◽  
Yi-Quan Zhang ◽  
Hui-Zhong Kou
Keyword(s):  
Magnetic Properties ◽  
Single Molecule ◽  
Magnetic Relaxation ◽  
Rhodamine 6G ◽  
Bond Angle ◽  
Magnetic Measurements ◽  
Single Molecule Magnet ◽  
Lanthanide Metals ◽  
Process Studies ◽  
Dual Functions

The complexes of lanthanide metals, especially dysprosium, can generally exhibit excellent magnetic properties. By means of modifying ligands, dual functions or even multi-functions can be achieved. Here, we synthesized an eight-coordinate Dy(III) complex 1, [Dy(HL-o)2(MeOH)2](ClO4)3·4.5MeOH, which is single-molecule magnet (SMM), and the introduction of the rhodamine 6G chromophore in the ring-opened ligand HL-o realizes ligand-centered fluorescence in addition to SMM. Magnetic measurements and ab initio calculations indicate that the magnetic relaxation for complex 1 should be due to the Raman relaxation process. Studies on magneto-structural correlationship of the rhodamine salicylaldehyde hydrazone Dy(III) complexes show that the calculated energy of the first Kramers Doublet (EKD1) is basically related to the Ophenoxy-Dy-Ophenoxy bond angle, i.e., the larger Ophenoxy-Dy-Ophenoxy bond angle corresponds to a larger EKD1.

Multifunctional properties of {CuII2LnIII2} systems involving nitrogen-rich nitronyl nitroxide: single-molecule magnet behavior, luminescence, magnetocaloric effects and heat capacity

2021 ◽  
Author(s):  
Hongdao Li ◽  
Pei Jing ◽  
Jiao Lu ◽  
Lu Xi ◽  
Qi Wang ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Magnetic Properties ◽  
Single Molecule ◽  
Nitroxide Radical ◽  
Nitronyl Nitroxide ◽  
Nitronyl Nitroxide Radical ◽  
Single Molecule Magnet ◽  
Luminescence Behavior ◽  
Multifunctional Properties

A family of 3d–4f heterometallic ring-shaped clusters on the basis of a nitrogen-rich nitronyl nitroxide radical have been obtained, and they feature polyfunctionality including magnetic properties, thermodynamics and luminescence behavior.

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