Field-induced slow magnetic relaxation of two 1-D compounds containing six-coordinated cobalt(ii) ions: influence of the coordination geometry

2018 ◽  
Vol 5 (9) ◽  
pp. 2314-2320 ◽  
Author(s):  
Zhiwei Chen ◽  
Lei Yin ◽  
Xiuna Mi ◽  
Suna Wang ◽  
Fan Cao ◽  
...  
Keyword(s):  
Coordination Sphere ◽  
Magnetic Relaxation ◽  
Slow Relaxation ◽  
Coordination Geometry ◽  
Slow Magnetic Relaxation ◽  
Relaxation Magnetization

Two 1-D Co(ii) compounds with different coordination geometries of the same coordination sphere exhibited field-induced slow relaxation magnetization with different D values.

A mononuclear Co(ii) complex formed from pyridinedimethanol with manifold slow relaxation channels

2017 ◽  
Vol 46 (33) ◽  
pp. 10950-10956 ◽  
Author(s):  
Dušan Valigura ◽  
Cyril Rajnák ◽  
Ján Moncol ◽  
Ján Titiš ◽  
Roman Boča
Keyword(s):  
Magnetic Anisotropy ◽  
Coordination Sphere ◽  
Magnetic Relaxation ◽  
Easy Axis ◽  
Slow Relaxation ◽  
Slow Magnetic Relaxation

A mononuclear hexacoordinate complex [Co(pydm)2](dnbz)2 formed from 2,6-pyridinedimethanol in the coordination sphere of Co(ii) and dinitrobenzoato anions exhibits magnetic anisotropy of an easy axis type and a field induced slow magnetic relaxation.

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.

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 Mixed metal CoII1−xZnIIx–organic frameworks based on chains with mixed carboxylate and azide bridges: magnetic coupling and slow relaxation

RSC Advances ◽  
2018 ◽  
Vol 8 (39) ◽  
pp. 22046-22052 ◽  
Author(s):  
Yan-Qin Wang ◽  
Kun Wang ◽  
En-Qing Gao
Keyword(s):  
Magnetic Relaxation ◽  
Magnetic Coupling ◽  
Slow Relaxation ◽  
Mixed Metal ◽  
Slow Magnetic Relaxation

A series of mixed-metal systems consisting of CoII1−xZnIIx chains with (μ-COO)2(μ-EO-N3) bridges were prepared, exhibiting interesting magnetic coupling and slow magnetic relaxation.

scholarly journals Effects of coordination sphere on unusually large zero field splitting and slow magnetic relaxation in trigonally symmetric molecules

2018 ◽  
Vol 9 (48) ◽  
pp. 9018-9026 ◽  
Author(s):  
Kelsey A. Schulte ◽  
Kuduva R. Vignesh ◽  
Kim R. Dunbar
Keyword(s):  
Water Molecule ◽  
Coordination Sphere ◽  
Magnetic Relaxation ◽  
Magnetic Behavior ◽  
Zero Field ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Slow Magnetic Relaxation

Coordination of a water molecule results in drastic effects on the magnetic behavior of a series of trigonal monopyramidal and bipyramidal compounds.

Single-ion magnetism in seven-coordinate YbIII complexes with distorted D5h coordination geometry

2017 ◽  
Vol 46 (38) ◽  
pp. 12884-12892 ◽  
Author(s):  
Dong-Qing Wu ◽  
Dong Shao ◽  
Xiao-Qin Wei ◽  
Fu-Xing Shen ◽  
Le Shi ◽  
...  
Keyword(s):  
Magnetic Relaxation ◽  
Coordination Geometry ◽  
Slow Magnetic Relaxation

Two seven-coordinate compounds of pentagonal bipyramidal YbIII centers exhibiting field-induced slow magnetic relaxation were characterized structurally and magnetically.

scholarly journals Pentanuclear [2.2] spirocyclic lanthanide(iii) complexes: slow magnetic relaxation of the DyIII analogue

2015 ◽  
Vol 44 (44) ◽  
pp. 19282-19293 ◽  
Author(s):  
Sourav Biswas ◽  
Sourav Das ◽  
Jan van Leusen ◽  
Paul Kögerler ◽  
Vadapalli Chandrasekhar
Keyword(s):  
Magnetic Relaxation ◽  
Slow Relaxation ◽  
Magnetic Analysis ◽  
Slow Magnetic Relaxation

A series of [2.2] spirocyclic complexes [Ln5(LH)4(η1-Piv)(η2-Piv)3(μ2–η2 η1Piv)2(H2O)]·Cl (Ln = DyIII, TbIII and HoIII) were synthesized. Magnetic analysis reveals that the DyIII analogue showed slow relaxation of magnetization.

Slow magnetic relaxation in Dy2 and Dy4 complexes of a versatile, trifunctional polydentate N,O-ligand

2019 ◽  
Vol 48 (38) ◽  
pp. 14269-14278 ◽  
Author(s):  
Muhammad U. Anwar ◽  
Ahmed Al-Harrasi ◽  
Jeremy M. Rawson ◽  
Emma L. Gavey ◽  
Jeffery Regier ◽  
...  
Keyword(s):  
Magnetic Relaxation ◽  
Slow Relaxation ◽  
Zero Field ◽  
Slow Magnetic Relaxation

A binuclear DyIII complex exhibits slow relaxation of magnetization under an applied dc field, while its tetranuclear counterpart exhibits “true” zero-field SMM behaviour.

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.

Magnetic refrigeration and slow magnetic relaxation in tetranuclear lanthanide cages (Ln = Gd, Dy) with in situ ligand transformation

2014 ◽  
Vol 38 (7) ◽  
pp. 3006-3014 ◽  
Author(s):  
Javeed Ahmad Sheikh ◽  
Amit Adhikary ◽  
Sanjit Konar
Keyword(s):  
Magnetic Relaxation ◽  
Magnetic Refrigeration ◽  
Slow Relaxation ◽  
Magnetic Entropy ◽  
Magnetic Studies ◽  
Entropy Changes ◽  
Slow Magnetic Relaxation

Three tetranuclear lanthanide cages featuring either hemicubane (1 and 2) or distorted hemicubane (3) like cores are reported. Magnetic studies reveal significant magnetic entropy changes for complex 1 and a slow relaxation of magnetisation for 3.

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