Simple Mononuclear Cobalt(II) Complex: A Single-Molecule Magnet Showing Two Slow Relaxation Processes

2014 ◽  
Vol 53 (5) ◽  
pp. 2367-2369 ◽  
Author(s):  
Roman Boča ◽  
Jozef Miklovič ◽  
Ján Titiš
Keyword(s):  
Single Molecule ◽  
Slow Relaxation ◽  
Relaxation Processes ◽  
Single Molecule Magnet ◽  
Mononuclear Cobalt

Modulating single-molecule magnet behavior towards multiple magnetic relaxation processes through structural variation in Dy4 clusters

2018 ◽  
Vol 5 (8) ◽  
pp. 1876-1885 ◽  
Author(s):  
Wen-Min Wang ◽  
Xiao-Min Kang ◽  
Hai-Yun Shen ◽  
Zhi-Lei Wu ◽  
Hong-Ling Gao ◽  
...  
Keyword(s):  
Schiff Base ◽  
Single Molecule ◽  
Schiff Base Ligand ◽  
Magnetic Relaxation ◽  
Structural Variation ◽  
Slow Relaxation ◽  
Relaxation Processes ◽  
Magnetic Studies ◽  
Single Molecule Magnet

Three Dy4 clusters based on a flexible and attractive Schiff base ligand HL have been synthesized, and they showed different tetranuclear core arrangements. Magnetic studies reveal that clusters 1–3 display distinct slow relaxation of magnetization.

A mononuclear Ni(ii) complex: a field induced single-molecule magnet showing two slow relaxation processes

2015 ◽  
Vol 44 (28) ◽  
pp. 12484-12487 ◽  
Author(s):  
Jozef Miklovič ◽  
Dušan Valigura ◽  
Roman Boča ◽  
Ján Titiš
Keyword(s):  
External Field ◽  
Magnetic Anisotropy ◽  
Single Molecule ◽  
Slow Relaxation ◽  
Relaxation Processes ◽  
Single Molecule Magnet ◽  
Superparamagnetic Behavior

The complex [Ni(pydc)(pydm)]·H2O, pyridine-2,6-dicarboxylato-2,6-bis(hydroxymethyl)pyridine-nickel(ii) monohydrate, possesses a sizable magnetic anisotropy, D/hc = −14 cm−1. It displays superparamagnetic behavior in an applied external field that culminates at BDC = 0.2 T.

Designing asymmetric Dy2 single-molecule magnets with two-step relaxation processes by the modification of the coordination environments of Dy(iii) ions

2020 ◽  
Vol 49 (26) ◽  
pp. 8976-8984
Author(s):  
Yuan Huang ◽  
Jia-Xin Li ◽  
Yu Ge ◽  
Xia-Mei Zhang ◽  
Yang Xu ◽  
...  
Keyword(s):  
Schiff Base ◽  
Single Molecule ◽  
Schiff Base Ligand ◽  
Slow Relaxation ◽  
Relaxation Processes ◽  
Single Molecule Magnets ◽  
Single Molecule Magnet

The reaction of Dy(NO3)3·6H2O and an asymmetric Schiff-base ligand H2L afforded two asymmetric dinuclear compound. Both complexes exhibit single-molecule magnet behavior with two-step slow relaxation processes.

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.

Magnetic field and dilution effects on the slow relaxation of {Er3} triangle-based arsenotungstate single-molecule magnets

2020 ◽  
Vol 49 (35) ◽  
pp. 12458-12465 ◽  
Author(s):  
Hanhan Chen ◽  
Lin Sun ◽  
Jinpeng Zhang ◽  
Zikang Xiao ◽  
Pengtao Ma ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Molecule ◽  
Magnetic Relaxation ◽  
Slow Relaxation ◽  
Relaxation Processes ◽  
Single Molecule Magnets ◽  
Thermally Activated ◽  
Slow Magnetic Relaxation ◽  
Dilution Effects

Triangular {Er3} cluster containing POM exhibits field-induced two thermally activated relaxation processes. Whereas, the diamagnetic dilution sample indicates slow magnetic relaxation with the QTM being partially suppressed.

scholarly journals Field-Induced Slow Relaxation in a Monometallic Manganese(III) Single-Molecule Magnet

2014 ◽  
Vol 54 (1) ◽  
pp. 13-15 ◽  
Author(s):  
Gavin A. Craig ◽  
Jonathan J. Marbey ◽  
Stephen Hill ◽  
Olivier Roubeau ◽  
Simon Parsons ◽  
...  
Keyword(s):  
Single Molecule ◽  
Slow Relaxation ◽  
Single Molecule Magnet

Exposing the intermolecular nature of the second relaxation pathway in a mononuclear cobalt(ii) single-molecule magnet with positive anisotropy

2015 ◽  
Vol 44 (14) ◽  
pp. 6368-6373 ◽  
Author(s):  
Fatemah Habib ◽  
Ilia Korobkov ◽  
Muralee Murugesu
Keyword(s):  
Single Molecule ◽  
Single Molecule Magnet ◽  
Mononuclear Cobalt

The investigation of a pentagonal bipyramidal Co(ii) complex with large positive anisotropy (D ≈ +30 cm−1) revealed field induced Single-Molecule Magnet behaviour with Ueff ≈ 50 K at 1.0 kOe.

A mononuclear five-coordinate Co(ii) single molecule magnet with a spin crossover between the S = 1/2 and 3/2 states

2018 ◽  
Vol 47 (46) ◽  
pp. 16596-16602 ◽  
Author(s):  
Lei Chen ◽  
Jingbo Song ◽  
Wen Zhao ◽  
Gangji Yi ◽  
Zhikuan Zhou ◽  
...  
Keyword(s):  
Hysteresis Loop ◽  
Single Molecule ◽  
Magnetic Relaxation ◽  
Spin Crossover ◽  
Spin Transition ◽  
Single Molecule Magnet ◽  
Pyramidal Geometry ◽  
Mononuclear Cobalt ◽  
Slow Magnetic Relaxation ◽  
Square Pyramidal Geometry

A mononuclear cobalt(ii) complex with square pyramidal geometry displays a spin transition with a small hysteresis loop and slow magnetic relaxation.

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