Synthesis, Structure, and Magnetic Properties of Dy2Co2L10(bipy)2 and Ln2Ni2L10(bipy)2, Ln = La, Gd, Tb, Dy, and Ho: Slow Magnetic Relaxation in Dy2Co2L10(bipy)2 and Dy2Ni2L10(bipy)2

2014 ◽  
Vol 53 (18) ◽  
pp. 9785-9799 ◽  
Author(s):  
Fang-Hua Zhao ◽  
Hui Li ◽  
Yun-Xia Che ◽  
Ji-Min Zheng ◽  
Veacheslav Vieru ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
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.

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.

Structural and magnetic properties of some lanthanide (Ln = Eu(iii), Gd(iii) and Nd(iii)) cyanoacetate polymers: field-induced slow magnetic relaxation in the Gd and Nd substitutions

2014 ◽  
Vol 43 (32) ◽  
pp. 12342-12356 ◽  
Author(s):  
A. Arauzo ◽  
A. Lazarescu ◽  
S. Shova ◽  
E. Bartolomé ◽  
R. Cases ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Relaxation ◽  
Slow Relaxation ◽  
Slow Magnetic Relaxation ◽  
Structural And Magnetic Properties

The cyanoacetate complexes, {[Ln2(CNCH2COO)6(H2O)4]·2H2O}n, with Ln = Gd, Nd, show field-induced slow relaxation: resonant phonon trapping and Orbach process for Gd, and Orbach and direct processes for Nd.

Two 3d–4f double helical chains including [Dy2M2]n (M = NiII and CoII) cores exhibiting slow magnetic relaxation

2016 ◽  
Vol 45 (26) ◽  
pp. 10830-10835 ◽  
Author(s):  
Shixiong She ◽  
Yahong Li ◽  
Wu Li
Keyword(s):  
Magnetic Properties ◽  
Magnetic Relaxation ◽  
Heterometallic Complexes ◽  
Helical Chain ◽  
One Dimensional ◽  
Slow Magnetic Relaxation

Two new heterometallic complexes with one-dimensional ladder-like double-helical chain structures were prepared. They both exhibit interesting magnetic properties.

Synthesis, crystal structures and magnetic properties of a series of pentanuclear heterometallic [CuII3LnIII2] (Ln = Ho, Dy, and Gd) complexes containing mixed organic ligands

2019 ◽  
Vol 43 (21) ◽  
pp. 8101-8108 ◽  
Author(s):  
Yong Chen ◽  
Qiao-Qiao Long ◽  
Zhao-Bo Hu ◽  
Hui-Sheng Wang ◽  
Zhi-Yong Huang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Crystal Structures ◽  
Magnetic Relaxation ◽  
Organic Ligands ◽  
Relaxation Behaviour ◽  
Slow Magnetic Relaxation

Three novel heterometallic compounds [CuII3LnIII2] [Ln = Ho (1), Dy (2) and Gd (3)] containing mixed organic ligands were obtained. 1 and 2 show slow magnetic relaxation behaviour.

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