Two hybrid lanthanide complexes exhibiting a large magnetocaloric effect and slow magnetic relaxation

2017 ◽  
Vol 46 (30) ◽  
pp. 10023-10028 ◽  
Author(s):  
Song-De Han ◽  
Jin-Hua Li ◽  
Hao-Hao Liu ◽  
Guo-Ming Wang
Keyword(s):  
Magnetocaloric Effect ◽  
Magnetic Relaxation ◽  
Lanthanide Complexes ◽  
Slow Magnetic Relaxation ◽  
Two Hybrid ◽  
Hybrid Complexes

We report two isostructural lanthanide hybrid complexes. The Gd-compound exhibits a large magnetocaloric effect with −ΔSmaxm = 51.29 J kg−1 K−1, and the Dy-compound displays slow magnetic relaxation.

A new family of dinuclear lanthanide complexes constructed from an 8-hydroxyquinoline Schiff base and β-diketone: magnetic properties and near-infrared luminescence

2019 ◽  
Vol 48 (4) ◽  
pp. 1392-1403 ◽  
Author(s):  
Dong-Fang Wu ◽  
Zhen Liu ◽  
Peng Ren ◽  
Xiao-He Liu ◽  
Ning Wang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Magnetocaloric Effect ◽  
Magnetic Relaxation ◽  
Lanthanide Complexes ◽  
Near Infrared ◽  
Relaxation Behavior ◽  
New Family ◽  
Infrared Luminescence ◽  
Slow Magnetic Relaxation

Gd/Dy complexes based on 8-hydroxiquinoline derivatives display a magnetocaloric effect and slow magnetic relaxation behavior.

Magnetocaloric effect and slow magnetic relaxation in two dense (3,12)-connected lanthanide complexes

2014 ◽  
Vol 1 (7) ◽  
pp. 549-552 ◽  
Author(s):  
Song-De Han ◽  
Xiao-Hong Miao ◽  
Sui-Jun Liu ◽  
Xian-He Bu
Keyword(s):  
Magnetocaloric Effect ◽  
Magnetic Relaxation ◽  
Lanthanide Complexes ◽  
Relaxation Behavior ◽  
Slow Magnetic Relaxation

We report two (3,12)-connected complexes with distorted cubic [Ln4O4] (Ln = Gd (1), Dy (2)) units as nodes bridged by in situ generated sulfate. 1 features a large magnetocaloric effect with −ΔSmaxm = 51.29 J kg−1 K−1, and 2 displays slow magnetic relaxation behavior.

Two novel tetranuclear lanthanide complexes (Ln = Tb(III) and Dy(III)) with luminescence and slow magnetic relaxation behaviors

Polyhedron ◽  
2019 ◽  
Vol 157 ◽  
pp. 292-296
Author(s):  
Ying Shi ◽  
Ya-Xin Zhang ◽  
Meng Li ◽  
Yue-Hua Zhang ◽  
Bi-Ying Liu ◽  
...  
Keyword(s):  
Magnetic Relaxation ◽  
Lanthanide Complexes ◽  
Slow Magnetic Relaxation

Magnetocaloric effect and slow magnetic relaxation in CsGd(MoO4)2 induced by crystal-field anisotropy

2018 ◽  
Vol 536 ◽  
pp. 401-404 ◽  
Author(s):  
V. Tkáč ◽  
R. Tarasenko ◽  
A. Orendáčová ◽  
M. Orendáč ◽  
V. Sechovský ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Crystal Field ◽  
Magnetic Relaxation ◽  
Slow Magnetic Relaxation

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.

Magnetocaloric effect and slow magnetic relaxation in two only azido bridged ferromagnetic tetranuclear metal clusters

2013 ◽  
Vol 42 (40) ◽  
pp. 14509 ◽  
Author(s):  
Jiong-Peng Zhao ◽  
Ran Zhao ◽  
Qian Yang ◽  
Bo-Wen Hu ◽  
Fu-Chen Liu ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Magnetic Relaxation ◽  
Metal Clusters ◽  
Slow Magnetic Relaxation
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