Slow magnetic relaxation in two-dimensional 3d–4f complexes based on phenyl pyrimidyl substituted nitronyl nitroxide radicals

2015 ◽  
Vol 44 (21) ◽  
pp. 9815-9822 ◽  
Author(s):  
Mei Zhu ◽  
Juanjuan Wang ◽  
Meng Yang ◽  
Yue Ma ◽  
Licun Li
Keyword(s):  
Magnetic Relaxation ◽  
Relaxation Behavior ◽  
Two Dimensional ◽  
Nitronyl Nitroxide ◽  
Nitroxide Radicals ◽  
Slow Magnetic Relaxation

Three isostructural two-dimensional nitronyl nitroxide bridged 3d–4f complexes have been achieved. The Tb complex shows field-induced two-step magnetic relaxation behavior.

Two Lanthanide–nitronyl nitroxide radicals compounds with slow magnetic relaxation behavior

2015 ◽  
Vol 1081 ◽  
pp. 348-354 ◽  
Author(s):  
Chen-Xi Zhang ◽  
Xue-Mei Qiao ◽  
Yu-Kun Kong ◽  
Bingwu Wang ◽  
Yu-Ying Zhang ◽  
...  
Keyword(s):  
Magnetic Relaxation ◽  
Relaxation Behavior ◽  
Nitronyl Nitroxide ◽  
Nitroxide Radicals ◽  
Slow Magnetic Relaxation

Two-dimensional heterometallic CuIILnIII (Ln = Tb and Dy) coordination polymers bridged by dicyanamides showing slow magnetic relaxation behavior

CrystEngComm ◽  
2019 ◽  
Vol 21 (34) ◽  
pp. 5145-5151 ◽  
Author(s):  
Jiao-Jiao Kong ◽  
Jia-Chen Zhang ◽  
Yu-Xuan Jiang ◽  
Jin-Xia Tao ◽  
Wen-Yan Wang ◽  
...  
Keyword(s):  
Hysteresis Loop ◽  
Coordination Polymers ◽  
Magnetic Relaxation ◽  
Magnetic Hysteresis ◽  
Magnetic Hysteresis Loop ◽  
Relaxation Behavior ◽  
Relaxation Behaviour ◽  
Two Dimensional ◽  
Slow Magnetic Relaxation

Two-dimensional heterometallic CuIILnIII (Ln = Gd, Tb and Dy) coordination polymers bridged by dicyanamides showed slow magnetic relaxation behaviour and a magnetic hysteresis loop at 1.8 K was observed for the CuTb compound.

Functionalized nitronyl nitroxide biradical bridged one-dimensional lanthanide chains: slow magnetic relaxation in the Tb and Dy analogues

2017 ◽  
Vol 41 (18) ◽  
pp. 10181-10188 ◽  
Author(s):  
Hongdao Li ◽  
Juan Sun ◽  
Meng Yang ◽  
Zan Sun ◽  
Jing Xie ◽  
...  
Keyword(s):  
Magnetic Relaxation ◽  
Relaxation Behavior ◽  
Nitronyl Nitroxide ◽  
One Dimensional ◽  
Slow Magnetic Relaxation ◽  
1D Chains

The first examples of Ln-nitronyl nitroxide 1D chains based on the functionalized nitronyl nitroxide biradical have been obtained, and complexes Dy and Tb exhibit slow magnetic relaxation behavior.

Slow relaxation of magnetization in unprecedented Cu–Ln-Rad hetero-tri-spin chains constructed from multidentate nitronyl nitroxide

2019 ◽  
Vol 7 (29) ◽  
pp. 9057-9064 ◽  
Author(s):  
Juan Sun ◽  
Zan Sun ◽  
Kang Wang ◽  
Lu Xi ◽  
Yue Ma ◽  
...  
Keyword(s):  
Magnetic Relaxation ◽  
Spin Chains ◽  
Slow Relaxation ◽  
Nitronyl Nitroxide ◽  
Nitronyl Nitroxides ◽  
Slow Magnetic Relaxation

Unprecedented Cu–Ln heterometallic chains derived from poly-dentate nitronyl nitroxides are reported. A Tb complex shows slow magnetic relaxation, while a Dy derivative displays interesting two-step relaxations of magnetization.

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.

Slow magnetic relaxation in CoII–LnIII heterodinuclear complexes achieved through a functionalized nitronyl nitroxide biradical

2020 ◽  
Vol 49 (4) ◽  
pp. 1089-1096 ◽  
Author(s):  
Lu Xi ◽  
Juan Sun ◽  
Kang Wang ◽  
Jiao Lu ◽  
Pei Jing ◽  
...  
Keyword(s):  
Magnetic Relaxation ◽  
Nitronyl Nitroxide ◽  
Frequency Dependent ◽  
Slow Magnetic Relaxation

Five nitronyl nitroxide biradical-CoII–LnIII heterodinuclear complexes were achieved and the DyCo derivative displayed visible temperature/frequency-dependent χ′′ peaks, indicating the SMM behavior.

Phosphine Oxide Ligand Based Tetrahedral Co II Complexes with Field‐induced Slow Magnetic Relaxation Behavior Modified by Terminal Ligands

2019 ◽  
Vol 14 (9) ◽  
pp. 1467-1471 ◽  
Author(s):  
Rui‐Chong Yang ◽  
Dan‐Ru Wang ◽  
Jun‐Liang Liu ◽  
Yu‐Fei Wang ◽  
Wei‐Quan Lin ◽  
...  
Keyword(s):  
Phosphine Oxide ◽  
Magnetic Relaxation ◽  
Relaxation Behavior ◽  
Slow Magnetic Relaxation

Magnetocaloric Effect and Slow Magnetic Relaxation on Two-Dimensional Layered 3d-4f Cluster-Based Metal–Organic Frameworks

2020 ◽  
Vol 20 (6) ◽  
pp. 4005-4012 ◽  
Author(s):  
Jia-Jia Yin ◽  
Tian-Qi Lu ◽  
Cheng Chen ◽  
Gui-Lin Zhuang ◽  
Jun Zheng ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Magnetic Relaxation ◽  
Metal Organic Frameworks ◽  
Two Dimensional ◽  
Slow Magnetic Relaxation ◽  
Metal Organic
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